Class Engine

Represents the class that provides the engine to set the main data source for the whole engine. The TableDescriptor will pick up the ItemProperties (schema information) from the SourceList and table will be initialized at run-time with records from the list.

Inheritance

System.Object

ShouldSerializeBasedPersisterType

DescriptorBase

Engine

GridEngineBase

Implements

System.ComponentModel.ICustomTypeDescriptor

System.IDisposable

ITableEventsTarget

Inherited Members

DescriptorBase.CanResetValue()

DescriptorBase.Dispose()

DescriptorBase.Disposed

DescriptorBase.Disposing

DescriptorBase.InDisposed

DescriptorBase.IsDisposed

DescriptorBase.OnDisposed(EventArgs)

DescriptorBase.ShouldSerialize()

ShouldSerializeBasedPersisterType.AddNewAttributes(PropertyDescriptor, Attribute[], Int32)

ShouldSerializeBasedPersisterType.CheckAllProperties

ShouldSerializeBasedPersisterType.GetCustomPDC(PropertyDescriptorCollection)

ShouldSerializeBasedPersisterType.GetNewAttributesCount(PropertyDescriptor)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: Syncfusion.Grouping

Assembly: Syncfusion.Grouping.Base.dll

Syntax

public class Engine : DescriptorBase, ICustomTypeDescriptor, IDisposable, ITableEventsTarget

Remarks

TableDescriptor is browsable. You can modify its collections and properties in the designer.

By default TableDescriptor is auto-populated. If you do not modify its settings and later change the data source, it will be automatically reinitialized. If you have made modifications to TableDescriptor and change the SourceList, the modifications will be kept. To discard modifications of a TableDescriptor, you need to explicitly call ResetTableDescriptor.

Table is dependent on information provided by TableDescriptor and the records from SourceList. It is created on the fly and can not be designed with designer.

Constructors

Engine()

Initializes the new Engine.

Declaration

public Engine()

Fields

HelpTracing

Declaration

public static bool HelpTracing

Field Value

Type
System.Boolean

ThrowExceptionIfSourceListSetEntryNotFound

Declaration

public static bool ThrowExceptionIfSourceListSetEntryNotFound

Field Value

Type
System.Boolean

VerboseEnsureObjectLifeTime

Debug helper. Produces a debug log for creation and destruction of important objects.

Declaration

public static bool VerboseEnsureObjectLifeTime

Field Value

Type
System.Boolean

Properties

AbortNestedCollectionsRecursionLevel

Gets or sets the amount of recursion allowed when stepping into nested collections of a type with self-relations. Default is 5.

Declaration

public static int AbortNestedCollectionsRecursionLevel { get; set; }

Property Value

Type
System.Int32

Remarks

The property is checked by the RelationDescriptor collection to avoid an infinite recursion a type has a self-relations.

AbortNestedFieldsRecursionLevel

Gets or sets the amount of recursion allowed when stepping into nested properties of a type. Default is 3.

Declaration

public static int AbortNestedFieldsRecursionLevel { get; set; }

Property Value

Type
System.Int32

Remarks

The property is checked by the FieldDescriptor collection to avoid an infinite recursion when two types reference each other as nested properties.

If you have a situation where Class1 has a property of type Class2 and Class2 has a property of type Class1 it is recommended that you mark one of the properties as Browsable(false). If you do not mark it Browsable(false) then the grid will step into a recursion and abort this recursion when the level reaches the value specified for MaximumNestedFieldLevel.

AllowedOptimizations

Gets or sets the value of the allowed optimizations.

Declaration

public EngineOptimizations AllowedOptimizations { get; set; }

Property Value

Type
EngineOptimizations

Remarks

Specifies optimizations the engine is allowed use when applicable. These optimizations can be used in combination with EngineCounter setting.

AllowSaveIntoEditableObjectWhileEditing

Gets or sets the value indicating whether to allow save the edit-able object or not when it is in edit-mode.

Declaration

public static bool AllowSaveIntoEditableObjectWhileEditing { get; set; }

Property Value

Type
System.Boolean

Remarks

This flag specifies whether the engine should save a value into the current editable row of the underlying datasource when BeginEdit was called on a record and the field is modified. Saving the value into the row in the datasource has the benefit that validation can occur in the datasource immediately once the end-user moves to the next cell in the current record.

Set this flag to false to save values into the current record only at the time EndEdit was called (when the user navigates away from the current record and wants to commit changes.) Default is true.

AllowSetRelatedTablesDirty

Gets or sets a value whether the related tables are set dirty or not when the parent table receives a ListChangedType.Reset in its ListChanged event. The default value is True.

Declaration

public bool AllowSetRelatedTablesDirty { get; set; }

Property Value

Type
System.Boolean

AllowSkipItemChangedWhileEditing

Gets or sets the value indicating whether to allow skip the item changes or not when it is in edit mode.

Declaration

public static bool AllowSkipItemChangedWhileEditing { get; set; }

Property Value

Type
System.Boolean

Remarks

A BindingList in .NET 2.0 immeditaley raises a ItemChanged event after each change even if BeginEdit was called. The following flag specifies whether to proceed with ItemChanged event handler logic only if the record was modified outside the engine or if the CurrentRecordManager called EndEdit. Default is true.

AllowSwapDataViewWithDataTableList

Gets or sets the value indicating whether the engine can wrap access to a DataTable or not with a DataTableList which provides optimized access to the rows of the DataTable.

Declaration

public bool AllowSwapDataViewWithDataTableList { get; set; }

Property Value

Type
System.Boolean

Remarks

The Engine will access a DataTable through this wrapper class instead of accessing records through the DataTable.DefaultView to increase performance when adding, removing and changing records when AllowSwapDataViewWithDataTableList is enabled. Default is False.

AutoPopulateRelations

Gets or sets a value indicating whether to auto-populate the relations or not.

Declaration

public bool AutoPopulateRelations { get; set; }

Property Value

Type
System.Boolean

Remarks

This property affects the auto-population of the RelationDescriptorCollection.

It specifies if relations should be automatically generated when you assign a DataSource a DataTable with constraints or a DataSet with relations defined. Default is True.

CacheRecordValues

Gets or sets a value indicating whether the engine should cache copies of the old values of the record or not.

Declaration

public bool CacheRecordValues { get; set; }

Property Value

Type
System.Boolean

Remarks

You can access these values with the Record.GetOldValue method. Setting this property will override the default value returned by ShouldCreateRecordWithCache.

CounterLogic

Gets or sets the counter logic.

Declaration

public EngineCounters CounterLogic { get; set; }

Property Value

Type
EngineCounters

Remarks

Specifies the counter logic to be used within the engine. If you have a large datasource and need support for groups and filtered records you can reduce the memory footprint by selectively disabling counters you do not need in your application.

See EngineOptimizations.DisableCounters for completely disabling counter logic for the RecordsDetails collection if you do not need grouping and filtering.

See EngineOptimizations.VirtualMode for using the engine in a virtual mode if you do not need support for sorting.

Culture

Gets or sets the culture information which holds rules for parsing and formatting numbers and dates. in expression fields.

Declaration

public CultureInfo Culture { get; set; }

Property Value

Type
System.Globalization.CultureInfo

Remarks

In invariant format numbers and dates are always in English format, e.g. use a '.' as decimal separator and dates in format mm/dd/yy. In UI culture dependent format the decimal separator can be a ',' or some other setting specified in CultureInfo.CurrentUICulture.

DefaultEnableAutoSize

Gets or sets a value indicating whether to defaultly AutoSize behavior should be enabled or not.

Declaration

public static bool DefaultEnableAutoSize { get; set; }

Property Value

Type
System.Boolean

DefaultUseLazyUniformChildListRelation

When you use the new UniformChildList behavior (i.e. when UseOldUniformChildListRelation = false) you can specify with this UseLazyUniformChildListRelation property whether the engine should access and enumerate the child collections only once the user expands a record. This will speed up load time of the grid and reduce memory usage when not all records get expanded.

Declaration

public static bool DefaultUseLazyUniformChildListRelation { get; set; }

Property Value

Type
System.Boolean

DefaultUseOldListChangedHandler

With version 4.4 the engine changed the way how the ListChanged event is handled internally to fix short-comings with performance of the code that was in place earlier. This property lets you switch back the behavior of the engine to the old mechanism if you notice compatibility issues. This static member defines the default value for the instance-specific UseOldListChangedHandler property for all engines in your application.

Declaration

public static bool DefaultUseOldListChangedHandler { get; set; }

Property Value

Type
System.Boolean

DefaultUseOldUniformChildListRelation

With version 4.2 the engine changed the way how UniformChildList relations are handled internally to fix short-comings of the design that was in place earlier. This property lets you switch back the behavior of the engine to the old mechanism if you notice compatibility issues. This static member defines the default value for the instance-specific UseOldUniformChildListRelation property for all engines in your application.

Declaration

public static bool DefaultUseOldUniformChildListRelation { get; set; }

Property Value

Type
System.Boolean

EnableAutoSize

Gets or sets a value indicating whether the AutoSize behavior should be enabled or not.

Declaration

public bool EnableAutoSize { get; set; }

Property Value

Type
System.Boolean

ForceShowCurrentRecord

Gets or sets a value indicating whether the engine should ensure that a record is visible or not and all its parent elements are expanded when setting the current record. The default setting is true.

Declaration

public bool ForceShowCurrentRecord { get; set; }

Property Value

Type
System.Boolean

ForwardTableEvents

Gets or sets an object that handles events raised by contained Table objects.

Declaration

public ITableEventsTarget ForwardTableEvents { get; set; }

Property Value

Type
ITableEventsTarget

InInitializeFrom

For internal use.

Declaration

public virtual bool InInitializeFrom { get; }

Property Value

Type
System.Boolean

InSetSourceList

Returns True when the SetSourceList(IEnumerable) method is called and False after the method returns.

Declaration

public bool InSetSourceList { get; }

Property Value

Type
System.Boolean

InSourceListChanged

Gets the value indicating whether the SourceListChanged event is raised or not.

Declaration

public bool InSourceListChanged { get; }

Property Value

Type
System.Boolean

Remarks

Returns True when the SourceListChanged event is raised and False after the event returns.

IsDynamicData

Gets or sets a value whether the bounded data source is composed of dynamic objects or not.

Declaration

public bool IsDynamicData { get; set; }

Property Value

Type
System.Boolean

Remarks

Applicable only for .NET Framework 4.0 and later.

MaxNestedCollectionRecurseLevel

Specifies the number of levels to recurse when ShowNestedPropertiesCollections is set to true.

Declaration

public int MaxNestedCollectionRecurseLevel { get; set; }

Property Value

Type	Description
System.Int32	Default value is AbortNestedCollectionsRecursionLevel. You can reset this property by setting it's value to -1.

Remarks

While AbortNestedCollectionsRecursionLevel lets you specify this recursion level globally, this property lets you specify it for a particular Engine instance. Take a look at AbortNestedCollectionsRecursionLevel for more information.

MaxNestedFieldRecurseLevel

Gets or sets the number of levels to recurse when ShowNestedPropertiesFields is set to true.

Declaration

public int MaxNestedFieldRecurseLevel { get; set; }

Property Value

Type	Description
System.Int32	Default value is AbortNestedFieldsRecursionLevel. You can reset this property by setting it's value to -1.

Remarks

While AbortNestedFieldsRecursionLevel lets you specify this recursion level globally, this property lets you specify it for a particular Engine instance. Take a look at AbortNestedFieldsRecursionLevel for more information.

RaiseSourceListChangedEventsOnEngineOnly

When the engine handles the ListChanged event it will itself raise numerous events. When set to true this the events will only be raised on the Engine object. If set to false then events will also be raised on inner objects (will bubble up on nested tables which caused some performance overhead). Property will only have effect if UseOldListChangedHandler = false.

Declaration

public bool RaiseSourceListChangedEventsOnEngineOnly { get; set; }

Property Value

Type
System.Boolean

RecordAsDisplayElements

Gets or sets the value indicating whether the record is set as Display elements or not.

Declaration

public bool RecordAsDisplayElements { get; set; }

Property Value

Type
System.Boolean

Remarks

Set this True if you do not want the engine to treat Record and ColumnHeaderSection elements as ContainerElements and instead have these elements be returned as a display element in the Table.DisplayElements collection.

With a GridGroupingControl, you must not change this property since a GridGroupingControl relies on the behavior that a record is not a display element but a container for rows and nested tables.

ShouldCreateRecordWithCache

Gets the value indicating whether to create record with cache or not.

Declaration

public bool ShouldCreateRecordWithCache { get; }

Property Value

Type
System.Boolean

Remarks

Returns true if underlying data source does not raise ColumnChanging events and therefore the record should cached old values in order to be able to compare values when a ListChanged event is handled. The property returns the value of CacheRecordValues if you explicitly set the CacheRecordValues property thus allowing you to override the default caching behavior of the engine.

ShowDefaultValuesInAddNewRecord

Gets or sets a value indicating whether the default value for fields in the AddNewRecord should be shown or not when it is not in edit-mode.

Declaration

public bool ShowDefaultValuesInAddNewRecord { get; set; }

Property Value

Type
System.Boolean

Remarks

If the ShowDefaultValuesInAddNewRecord is false then the default values will only be assigned when AddNewRecord.BeginEdit is called. Prior calls to AddNewRecord will return no value in that case.

ShowNestedPropertiesFields

Gets or sets a value indicating whether to show the nested property fields or not.

Declaration

public bool ShowNestedPropertiesFields { get; set; }

Property Value

Type
System.Boolean

Remarks

This property affects the auto-population of the FieldDescriptorCollection.

It specifies if individual fields should be added for every property of a type when a type has nested properties. You can also control this behavior at run-time with the QueryShowNestedPropertiesFields event. Default is True.

ShowRelationFields

Gets or sets the value to shoe the relation fields.

Declaration

public ShowRelationFields ShowRelationFields { get; set; }

Property Value

Type
ShowRelationFields

Remarks

This property affects the auto-population of the FieldDescriptorCollection.

It specifies if dependent fields from a related table in a foreign key relation (or related collection) should be added to the main tables FieldDescriptorCollection. You can also control this behavior at run-time with the QueryShowRelationDisplayFields event. Default is ShowRelationFields.ShowDisplayFieldsOnly.

SortMappingNames

Gets or sets a value indicating whether the engine should sort mapping names alphabetically or not in the drop-down editors of the property grid. Default is false.

Declaration

public bool SortMappingNames { get; set; }

Property Value

Type
System.Boolean

SourceListSet

Gets the reference to the SourceListSet that maintains a collection of IList or DataTables that are used by main table or related tables as data sources.

Declaration

public SourceListSet SourceListSet { get; }

Property Value

Type
SourceListSet

SourceListVersion

Gets the version number for the underlying data source. This number is increased each time SetSourceList(IEnumerable) is called.

Declaration

public int SourceListVersion { get; }

Property Value

Type
System.Int32

SupportsYAmount

Gets the value indicating whether it supports the y-amount.

Declaration

public bool SupportsYAmount { get; }

Property Value

Type
System.Boolean

Table

Gets the Table object and manages the records from the engine's DataSource and provides access to records and grouped elements through several collection classes, most prominent the DisplayElementsInTableCollection.

Declaration

public Table Table { get; }

Property Value

Type
Table

TableDescriptor

Gets the table schema information of the root table in the data source.

Declaration

public TableDescriptor TableDescriptor { get; }

Property Value

Type
TableDescriptor

TableDirtyOnSourceListReset

Gets or sets a value whether the engine should set TableDirtyOnSourceListReset to true or not when the data source raises a ListChanged event with ListChangedType.Reset notification. The default value is False.

Declaration

public bool TableDirtyOnSourceListReset { get; set; }

Property Value

Type
System.Boolean

UseInvariantCulture

Gets or sets a value whether numbers and dates in expressions should be in invariant format or UI culture dependent format.

Declaration

public bool UseInvariantCulture { get; set; }

Property Value

Type
System.Boolean

Remarks

UseLazyUniformChildListRelation

Declaration

public bool UseLazyUniformChildListRelation { get; set; }

Property Value

Type
System.Boolean

UseOldListChangedHandler

Declaration

public bool UseOldListChangedHandler { get; set; }

Property Value

Type
System.Boolean

UseOldUniformChildListRelation

Declaration

public bool UseOldUniformChildListRelation { get; set; }

Property Value

Type
System.Boolean

Version

Gets the version number of this engine. The version is increased each time the engine (or any container schema descriptor) was modified.

Declaration

public int Version { get; }

Property Value

Type
System.Int32

VersionInfo

Gets the value of assembly version of the GridGroupingControl at the time it was dropped onto a form with designer.

Declaration

public virtual string VersionInfo { get; }

Property Value

Type
System.String

Methods

BumpVersion()

Increases the Version number of this engine.

Declaration

public void BumpVersion()

CreateAddNewRecord(AddNewRecordSection)

Creates a new instance of the AddNewRecord class.

Declaration

public virtual AddNewRecord CreateAddNewRecord(AddNewRecordSection parent)

Parameters

Type	Name	Description
AddNewRecordSection	parent	The parent section.

Returns

Type	Description
AddNewRecord	The new element.

CreateAddNewRecordSection(Group)

Creates a new instance of the AddNewRecordSection class.

Declaration

public virtual AddNewRecordSection CreateAddNewRecordSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
AddNewRecordSection	The new element.

CreateCaptionRow(CaptionSection)

Creates a new instance of the CaptionRow class.

Declaration

public virtual CaptionRow CreateCaptionRow(CaptionSection parent)

Parameters

Type	Name	Description
CaptionSection	parent	The parent section.

Returns

Type	Description
CaptionRow	The new element.

CreateCaptionSection(Group)

Creates a new instance of the CaptionSection class.

Declaration

public virtual CaptionSection CreateCaptionSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
CaptionSection	The new element.

CreateChildTable(Element)

Creates a new instance of the ChildTable class.

Declaration

public virtual ChildTable CreateChildTable(Element parent)

Parameters

Type	Name	Description
Element	parent	The parent element.

Returns

Type	Description
ChildTable	The new element.

CreateColumnHeaderRow(ColumnHeaderSection)

Creates a new instance of the ColumnHeaderRow class.

Declaration

public virtual ColumnHeaderRow CreateColumnHeaderRow(ColumnHeaderSection parent)

Parameters

Type	Name	Description
ColumnHeaderSection	parent	The parent section.

Returns

Type	Description
ColumnHeaderRow	The new element.

CreateColumnHeaderSection(Group)

Creates a new instance of the ColumnHeaderSection class.

Declaration

public virtual ColumnHeaderSection CreateColumnHeaderSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
ColumnHeaderSection	The new element.

CreateEmptySection(Group)

Creates a new instance of the EmptySection class.

Declaration

public virtual EmptySection CreateEmptySection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
EmptySection	The new element.

CreateExpressionFieldEvaluator(TableDescriptor)

Creates a new instance of the ExpressionFieldEvaluator class that is bound to the specified instance of the TableDescriptor class. and provides routines for parsing and evaluating formula expressions in fields.

Declaration

public virtual ExpressionFieldEvaluator CreateExpressionFieldEvaluator(TableDescriptor tableDescriptor)

Parameters

Type	Name	Description
TableDescriptor	tableDescriptor	The TableDescriptor this object is bounded to.

Returns

Type	Description
ExpressionFieldEvaluator	A new instance of the ExpressionFieldEvaluator class.

CreateFilterBarRow(FilterBarSection)

Creates a new instance of the FilterBarRow class.

Declaration

public virtual FilterBarRow CreateFilterBarRow(FilterBarSection parent)

Parameters

Type	Name	Description
FilterBarSection	parent	The parent section.

Returns

Type	Description
FilterBarRow	The new element.

CreateFilterBarSection(Group)

Creates a new instance of the FilterBarSection class.

Declaration

public virtual FilterBarSection CreateFilterBarSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
FilterBarSection	The new element.

CreateGroup(Section)

Creates a new instance of the Group class.

Declaration

public virtual Group CreateGroup(Section parent)

Parameters

Type	Name	Description
Section	parent	The parent section.

Returns

Type	Description
Group	The new element.

CreateGroupFooterSection(Group)

Creates a new instance of the GroupFooterSection class.

Declaration

public virtual GroupFooterSection CreateGroupFooterSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
GroupFooterSection	The new element.

CreateGroupHeaderSection(Group)

Creates a new instance of the GroupHeaderSection class.

Declaration

public virtual GroupHeaderSection CreateGroupHeaderSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
GroupHeaderSection	The new element.

CreateGroupPreviewSection(Group)

Creates a new instance of the GroupPreviewSection class.

Declaration

public virtual GroupPreviewSection CreateGroupPreviewSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
GroupPreviewSection	The new element.

CreateGroupsDetails(Group)

Creates a new instance of the GroupsDetails class.

Declaration

public virtual GroupsDetails CreateGroupsDetails(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
GroupsDetails	The new element.

CreateNestedTable(RecordNestedTablesPart)

Creates a new instance of the NestedTable class.

Declaration

public virtual NestedTable CreateNestedTable(RecordNestedTablesPart parent)

Parameters

Type	Name	Description
RecordNestedTablesPart	parent	The parent element.

Returns

Type	Description
NestedTable	The new element.

CreateRecord(Table)

Creates a new instance of the Record class.

Declaration

public virtual Record CreateRecord(Table parentTable)

Parameters

Type	Name	Description
Table	parentTable	The parent table.

Returns

Type	Description
Record	The new element.

CreateRecordNestedTablesPart(Record)

Creates a new instance of the RecordNestedTablesPart class.

Declaration

public virtual RecordNestedTablesPart CreateRecordNestedTablesPart(Record parent)

Parameters

Type	Name	Description
Record	parent	The parent record.

Returns

Type	Description
RecordNestedTablesPart	The new element.

CreateRecordPreviewRow(RecordPreviewRowsPart)

Creates a new instance of the RecordPreviewRow class.

Declaration

public virtual RecordPreviewRow CreateRecordPreviewRow(RecordPreviewRowsPart parent)

Parameters

Type	Name	Description
RecordPreviewRowsPart	parent	The parent element.

Returns

Type	Description
RecordPreviewRow	The new element.

CreateRecordPreviewRowsPart(Record)

Creates a new instance of the RecordPreviewRowsPart class.

Declaration

public virtual RecordPreviewRowsPart CreateRecordPreviewRowsPart(Record parent)

Parameters

Type	Name	Description
Record	parent	The parent record.

Returns

Type	Description
RecordPreviewRowsPart	The new element.

CreateRecordRow(RecordRowsPart)

Creates a new instance of theRecordRow class.

Declaration

public virtual RecordRow CreateRecordRow(RecordRowsPart parent)

Parameters

Type	Name	Description
RecordRowsPart	parent	The parent element.

Returns

Type	Description
RecordRow	The new element.

CreateRecordRowsPart(Record)

Creates a new instance of the RecordRowsPart class.

Declaration

public virtual RecordRowsPart CreateRecordRowsPart(Record parent)

Parameters

Type	Name	Description
Record	parent	The parent record.

Returns

Type	Description
RecordRowsPart	The new element.

CreateRecordsDetails(Group)

Creates a new instance of the RecordsDetails class.

Declaration

public virtual RecordsDetails CreateRecordsDetails(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
RecordsDetails	The new element.

CreateRelationDescriptor()

Creates a new instance of the RelationDescriptor class.

Declaration

public virtual RelationDescriptor CreateRelationDescriptor()

Returns

Type	Description
RelationDescriptor	A new instance of the RelationDescriptor class.

CreateRowElementsSection(Group)

Creates a new instance of the RowElementsSection class.

Declaration

public virtual RowElementsSection CreateRowElementsSection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
RowElementsSection	The new element.

CreateSummarySection(Group)

Creates a new instance of the Section class.

Declaration

public virtual Section CreateSummarySection(Group parent)

Parameters

Type	Name	Description
Group	parent	The parent group.

Returns

Type	Description
Section	The new element.

CreateTable(TableDescriptor)

Creates a new instance of the Table class with the specified instance of the TableDescriptor class.

Declaration

public Table CreateTable(TableDescriptor tableDescriptor)

Parameters

Type	Name	Description
TableDescriptor	tableDescriptor	The TableDescriptor with schema information for the table.

Returns

Type	Description
Table	A new Table object.

CreateTable(TableDescriptor, Table)

Creates a new instance of the Table class for the specified instance of the TableDescriptor class and parent table.

Declaration

public virtual Table CreateTable(TableDescriptor tableDescriptor, Table parentTable)

Parameters

Type	Name	Description
TableDescriptor	tableDescriptor	The TableDescriptor with schema information for the table.
Table	parentTable	The parent table that has a relation with this new table.

Returns

Type	Description
Table	A new Table object.

CreateTableDescriptor(RelationDescriptor)

Creates a new instance of the TableDescriptor that belongs to the specified instance of the RelationDescriptor class.

Declaration

public virtual TableDescriptor CreateTableDescriptor(RelationDescriptor parentRelation)

Parameters

Type	Name	Description
RelationDescriptor	parentRelation	The RelationDescriptor that holds this TableDescriptor. If it is NULL, the return TableDescriptor is the main TableDescripor and has no parent relation.

Returns

Type	Description
TableDescriptor	A new TableDescriptor object.

Dispose(Boolean)

Overridden to manage the unwanted resources.

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

Overrides

DescriptorBase.Dispose(Boolean)

EnumerateTableDescriptor()

Creates a new instance of the EngineTableDescriptorEnumerable class.

Declaration

public EngineTableDescriptorEnumerable EnumerateTableDescriptor()

Returns

Type	Description
EngineTableDescriptorEnumerable	A EngineTableDescriptorEnumerable object.

EnumerateTables()

Creates a new instance of the EngineTableEnumerable class.

Declaration

public EngineTableEnumerable EnumerateTables()

Returns

Type	Description
EngineTableEnumerable	A EngineTableEnumerable object.

GetDesignMode()

Determines whether the engine is attached to a component or control that is currently being designed in the Visual Studio designer.

Declaration

public virtual bool GetDesignMode()

Returns

Type	Description
System.Boolean	True if the engine is attached to the control being designed; Otherwise False.

GetName()

Overridden to get the table descriptor name.

Declaration

public override string GetName()

Returns

Type	Description
System.String	Table descriptor name.

Overrides

DescriptorBase.GetName()

GetSourceList()

Gets a source list previously specified with SetSourceList(IEnumerable). If no source list was specified or if ShouldReplaceSourceList() returns True, the virtual GetSourceListBase() method is called and the resulting source list will then be passed as argument to a SetSourceList(IEnumerable) method call.

Declaration

public IEnumerable GetSourceList()

Returns

Type	Description
System.Collections.IEnumerable	The source list for this engine.

Remarks

The reasoning for the way the GetSourceListBase(), GetSourceList(), SetSourceList(IEnumerable), and ShouldReplaceSourceList() methods work together is to delay initializing the source list until all information has been specified to correctly locate the list. This allows the end user to set DataSource and DataMember properties without having to worry about the order when the properties are set. It will also ensure that with Windows Forms applications, the currency manager context has been initialized.

GetSourceListBase()

Occurs when there has previously been no data source specified and a GetSourceList() call occurs. Override this method to allow retrieving the source list on demand.

Declaration

protected virtual IEnumerable GetSourceListBase()

Returns

Type	Description
System.Collections.IEnumerable	The source list for this engine.

Remarks

With a GridGroupingControl, the GridEngineBase method overloads this method to bind the engine to a data source on demand. When this method is called, GridEngineBase will locate a CurrencyManager based on the given DataSource and DataMember properties. The resulting source list will then be passed as an argument to a SetSourceList(IEnumerable) method call.

GetTableDescriptor(String)

Gets the main table descriptor or a table descriptor of any nested relation that matches the specified name.

Declaration

public TableDescriptor GetTableDescriptor(string name)

Parameters

Type	Name	Description
System.String	name	The name of the table descriptor to search.

Returns

Type	Description
TableDescriptor	The table descriptor or NULL if not found.

HasSourceList()

Determines whether the SetSourceList(IEnumerable) was called and source list has been set or not.

Declaration

public bool HasSourceList()

Returns

Type	Description
System.Boolean	True if SetSourceList(IEnumerable) was called and source list has been set; False otherwise.

InitializeFrom(Engine)

Initializes an object and copies properties from another object PropertyChanging and PropertyChanged events are raised for every property that is modified. If both objects are equal, no events are raised.

Declaration

public virtual void InitializeFrom(Engine other)

Parameters

Type	Name	Description
Engine	other	The source object.

OnCategorizedRecords(TableEventArgs)

Occurs when the CategorizedRecords event is done.

Declaration

protected virtual void OnCategorizedRecords(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

OnCategorizingRecords(TableEventArgs)

Occurs when the CategorizingRecords event is done.

Declaration

protected virtual void OnCategorizingRecords(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

OnCurrentRecordContextChange(CurrentRecordContextChangeEventArgs)

Occurs when the CurrentRecordContextChange event is done.

Declaration

protected virtual void OnCurrentRecordContextChange(CurrentRecordContextChangeEventArgs e)

Parameters

Type	Name	Description
CurrentRecordContextChangeEventArgs	e	A CurrentRecordContextChangeEventArgs contains the event data.

OnCurrentRecordManagerReset(TableEventArgs)

Occurs when the CurrentRecordManagerReset event is done.

Declaration

protected virtual void OnCurrentRecordManagerReset(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

OnDisplayElementChanged(DisplayElementChangedEventArgs)

Occurs when the DisplayElementChanged event is done.

Declaration

protected virtual void OnDisplayElementChanged(DisplayElementChangedEventArgs e)

Parameters

Type	Name	Description
DisplayElementChangedEventArgs	e	A DisplayElementChangedEventArgs contains the event data.

OnDisplayElementChanging(DisplayElementChangingEventArgs)

Occurs when the DisplayElementChanging event is done.

Declaration

protected virtual void OnDisplayElementChanging(DisplayElementChangingEventArgs e)

Parameters

Type	Name	Description
DisplayElementChangingEventArgs	e	A DisplayElementChangingEventArgs contains the event data.

OnExceptionRaised(ExceptionRaisedEventArgs)

Raises the ExceptionRaised event.

Declaration

protected virtual void OnExceptionRaised(ExceptionRaisedEventArgs e)

Parameters

Type	Name	Description
ExceptionRaisedEventArgs	e	A ExceptionRaisedEventArgs contains the event data.

OnGroupAdded(GroupEventArgs)

Occurs when the GroupAdded event is done.

Declaration

protected virtual void OnGroupAdded(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnGroupCollapsed(GroupEventArgs)

Occurs when the GroupCollapsed event is done.

Declaration

protected virtual void OnGroupCollapsed(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs that contains the event data.

OnGroupCollapsing(GroupEventArgs)

Occurs when the GroupCollapsing event is done.

Declaration

protected virtual void OnGroupCollapsing(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnGroupExpanded(GroupEventArgs)

Occurs when the GroupExpanded event is done.

Declaration

protected virtual void OnGroupExpanded(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnGroupExpanding(GroupEventArgs)

Occurs when the GroupExpanding event is done.

Declaration

protected virtual void OnGroupExpanding(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnGroupRemoving(GroupEventArgs)

Occurs when the GroupRemoving event is done.

Declaration

protected virtual void OnGroupRemoving(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnGroupSummaryInvalidated(GroupEventArgs)

Occurs when the GroupSummaryInvalidated event is done.

Declaration

protected virtual void OnGroupSummaryInvalidated(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnInvalidatingCounters(TableEventArgs)

Occurs when the InvalidatingCounters event is done.

Declaration

protected virtual void OnInvalidatingCounters(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

OnInvalidatingSummaries(TableEventArgs)

Occurs when the InvalidatingSummaries event is done.

Declaration

protected virtual void OnInvalidatingSummaries(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

OnPropertyChanged(DescriptorPropertyChangedEventArgs)

Occurs when the PropertyChanged event is done.

Declaration

protected virtual void OnPropertyChanged(DescriptorPropertyChangedEventArgs e)

Parameters

Type	Name	Description
DescriptorPropertyChangedEventArgs	e	A DescriptorPropertyChangedEventArgs that contains the event data.

OnPropertyChanging(DescriptorPropertyChangedEventArgs)

Occurs when the PropertyChanging event is done.

Declaration

protected virtual void OnPropertyChanging(DescriptorPropertyChangedEventArgs e)

Parameters

Type	Name	Description
DescriptorPropertyChangedEventArgs	e	A DescriptorPropertyChangedEventArgs that contains the event data.

OnQueryAddRelation(QueryAddRelationEventArgs)

Occurs when the QueryAddRelation event is done.

Declaration

protected virtual void OnQueryAddRelation(QueryAddRelationEventArgs e)

Parameters

Type	Name	Description
QueryAddRelationEventArgs	e	A QueryAddRelationEventArgs contains the event data.

OnQueryRecordMeetsFilterCriteria(QueryRecordMeetsFilterCriteriaEventArgs)

Raises the QueryRecordMeetsFilterCriteria event.

Declaration

protected virtual void OnQueryRecordMeetsFilterCriteria(QueryRecordMeetsFilterCriteriaEventArgs e)

Parameters

Type	Name	Description
QueryRecordMeetsFilterCriteriaEventArgs	e	A QueryRecordMeetsFilterCriteriaEventArgs that contains the event data.

OnQueryShowField(QueryShowFieldEventArgs)

Occurs when the QueryShowField event is done.

Declaration

protected virtual void OnQueryShowField(QueryShowFieldEventArgs e)

Parameters

Type	Name	Description
QueryShowFieldEventArgs	e	A QueryShowFieldEventArgs contains the event data.

OnQueryShowNestedPropertiesFields(QueryShowNestedPropertiesFieldsEventArgs)

Raises the QueryShowNestedPropertiesFields event is done.

Declaration

protected virtual void OnQueryShowNestedPropertiesFields(QueryShowNestedPropertiesFieldsEventArgs e)

Parameters

Type	Name	Description
QueryShowNestedPropertiesFieldsEventArgs	e	A QueryShowNestedPropertiesFieldsEventArgs contains the event data.

OnQueryShowRelationDisplayFields(QueryShowRelationFieldsEventArgs)

Occurs when the QueryShowRelationDisplayFields event is done.

Declaration

protected virtual void OnQueryShowRelationDisplayFields(QueryShowRelationFieldsEventArgs e)

Parameters

Type	Name	Description
QueryShowRelationFieldsEventArgs	e	A QueryShowRelationFieldsEventArgs contains the event data.

OnQueryValue(FieldValueEventArgs)

Occurs when the QueryValue event is done.

Declaration

protected virtual void OnQueryValue(FieldValueEventArgs e)

Parameters

Type	Name	Description
FieldValueEventArgs	e	The FieldValueEventArgs contains the event data.

OnRecordCollapsed(RecordEventArgs)

Occurs when the RecordCollapsed event is done.

Declaration

protected virtual void OnRecordCollapsed(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordCollapsing(RecordEventArgs)

Occurs when the RecordCollapsing event is done.

Declaration

protected virtual void OnRecordCollapsing(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordDeleted(RecordEventArgs)

Occurs when the RecordDeleted event is done.

Declaration

protected virtual void OnRecordDeleted(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordDeleting(RecordEventArgs)

Occurs when the RecordDeleting event is done.

Declaration

protected virtual void OnRecordDeleting(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordExpanded(RecordEventArgs)

Occurs when the RecordExpanded event is done.

Declaration

protected virtual void OnRecordExpanded(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordExpanding(RecordEventArgs)

Occurs when the RecordExpanding event is done.

Declaration

protected virtual void OnRecordExpanding(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	A RecordEventArgs contains the event data.

OnRecordValueChanged(RecordValueChangedEventArgs)

Occurs when the RecordValueChanged event is done.

Declaration

protected virtual void OnRecordValueChanged(RecordValueChangedEventArgs e)

Parameters

Type	Name	Description
RecordValueChangedEventArgs	e	A RecordValueChangingEventArgs contains the event data.

OnRecordValueChanging(RecordValueChangingEventArgs)

Occurs when the RecordValueChanging event is done.

Declaration

protected virtual void OnRecordValueChanging(RecordValueChangingEventArgs e)

Parameters

Type	Name	Description
RecordValueChangingEventArgs	e	A RecordValueChangingEventArgs contains the event data.

OnSaveValue(FieldValueEventArgs)

Occurs when the SaveValue event is done.

Declaration

protected virtual void OnSaveValue(FieldValueEventArgs e)

Parameters

Type	Name	Description
FieldValueEventArgs	e	The FieldValueEventArgs contains the event data.

OnSelectedRecordsChanged(SelectedRecordsChangedEventArgs)

Occurs when the SelectedRecordsChanged event is done.

Declaration

protected virtual void OnSelectedRecordsChanged(SelectedRecordsChangedEventArgs e)

Parameters

Type	Name	Description
SelectedRecordsChangedEventArgs	e	A SelectedRecordsChangedEventArgs contains the event data.

OnSelectedRecordsChanging(SelectedRecordsChangedEventArgs)

Occurs when the SelectedRecordsChanging event is done.

Declaration

protected virtual void OnSelectedRecordsChanging(SelectedRecordsChangedEventArgs e)

Parameters

Type	Name	Description
SelectedRecordsChangedEventArgs	e	A SelectedRecordsChangedEventArgs contains the event data.

OnSortedItemsInGroup(GroupEventArgs)

Occurs when the SortedItemsInGroup event is done.

Declaration

protected virtual void OnSortedItemsInGroup(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnSortingItemsInGroup(GroupEventArgs)

Occurs when the SortingItemsInGroup event is done.

Declaration

protected virtual void OnSortingItemsInGroup(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

OnSourceListChanged(EventArgs)

Occurs when the SourceListChanged event is done.

Declaration

protected virtual void OnSourceListChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An System.EventArgs that contains the event data.

OnSourceListListChanged(TableListChangedEventArgs)

Occurs when the SourceListListChanged event is done.

Declaration

protected virtual void OnSourceListListChanged(TableListChangedEventArgs e)

Parameters

Type	Name	Description
TableListChangedEventArgs	e	A TableListChangedEventArgs contains the event data.

OnSourceListListChangedCompleted(TableListChangedEventArgs)

Occurs when the SourceListListChangedCompleted event is done.

Declaration

protected virtual void OnSourceListListChangedCompleted(TableListChangedEventArgs e)

Parameters

Type	Name	Description
TableListChangedEventArgs	e	A TableListChangedEventArgs contains the event data.

OnSourceListRecordChanged(RecordChangedEventArgs)

Occurs when the SourceListRecordChanged event is done.

Declaration

protected virtual void OnSourceListRecordChanged(RecordChangedEventArgs e)

Parameters

Type	Name	Description
RecordChangedEventArgs	e	A RecordChangedEventArgs contains the event data.

OnSourceListRecordChanging(RecordChangedEventArgs)

Occurs when the SourceListRecordChanging event is done.

Declaration

protected virtual void OnSourceListRecordChanging(RecordChangedEventArgs e)

Parameters

Type	Name	Description
RecordChangedEventArgs	e	A RecordChangedEventArgs contains the event data.

OnTableCreated(EventArgs)

Occurs when the TableCreated event is done.

Declaration

protected virtual void OnTableCreated(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An System.EventArgs contains the event data.

OnTableDescriptorCreated(EventArgs)

Occurs when the TableDescriptorCreated event is done.

Declaration

protected virtual void OnTableDescriptorCreated(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An System.EventArgs contains the event data.

OnTableSourceListChanged(TableEventArgs)

Occurs when the SourceListChanged event is done.

Declaration

protected virtual void OnTableSourceListChanged(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs that contains the event data.

RaiseQueryAddRelation(QueryAddRelationEventArgs)

Occurs when the QueryAddRelation event is done.

Declaration

public void RaiseQueryAddRelation(QueryAddRelationEventArgs e)

Parameters

Type	Name	Description
QueryAddRelationEventArgs	e	A QueryAddRelationEventArgs contains the event data.

RaiseQueryShowField(QueryShowFieldEventArgs)

Occurs when the QueryShowField event is done.

Declaration

public void RaiseQueryShowField(QueryShowFieldEventArgs e)

Parameters

Type	Name	Description
QueryShowFieldEventArgs	e	A QueryShowFieldEventArgs contains the event data.

RaiseQueryShowNestedPropertiesFields(QueryShowNestedPropertiesFieldsEventArgs)

Occurs when the QueryShowNestedPropertiesFields event is done.

Declaration

public void RaiseQueryShowNestedPropertiesFields(QueryShowNestedPropertiesFieldsEventArgs e)

Parameters

Type	Name	Description
QueryShowNestedPropertiesFieldsEventArgs	e	A QueryShowNestedPropertiesFieldsEventArgs contains the event data.

RaiseQueryShowRelationDisplayFields(QueryShowRelationFieldsEventArgs)

Occurs when the QueryShowRelationDisplayFields event is done.

Declaration

public void RaiseQueryShowRelationDisplayFields(QueryShowRelationFieldsEventArgs e)

Parameters

Type	Name	Description
QueryShowRelationFieldsEventArgs	e	A QueryShowRelationFieldsEventArgs contains the event data.

RaiseQueryValue(FieldValueEventArgs)

Occurs when the QueryValue event is done.

Declaration

public void RaiseQueryValue(FieldValueEventArgs e)

Parameters

Type	Name	Description
FieldValueEventArgs	e	The FieldValueEventArgs contains the event data.

RaiseSaveValue(FieldValueEventArgs)

Occurs when the SaveValue event is done.

Declaration

public void RaiseSaveValue(FieldValueEventArgs e)

Parameters

Type	Name	Description
FieldValueEventArgs	e	The FieldValueEventArgs contains the event data.

Reset()

Overridden to reset the values.

Declaration

public override void Reset()

Overrides

DescriptorBase.Reset()

ResetCacheRecordValues()

Resets the CacheRecordValues back to its default value.

Declaration

public void ResetCacheRecordValues()

ResetCultureInfo()

Resets the System.Globalization.CultureInfo property.

Declaration

public void ResetCultureInfo()

ResetEnableAutoSize()

Resets the EnableAutoSize property.

Declaration

public void ResetEnableAutoSize()

ResetMaxNestedCollectionRecurseLevel()

Resets the MaxNestedCollectionRecurseLevel property back to its default value AbortNestedCollectionsRecursionLevel

Declaration

public void ResetMaxNestedCollectionRecurseLevel()

ResetMaxNestedFieldRecurseLevel()

Resets the MaxNestedFieldRecurseLevel property back to its default value AbortNestedFieldsRecursionLevel

Declaration

public void ResetMaxNestedFieldRecurseLevel()

ResetTable()

Resets the table.

Declaration

public void ResetTable()

ResetTableDescriptor()

Resets the TableDescriptor back to its default state and auto-populates schema information on demand.

Declaration

public void ResetTableDescriptor()

ResetTableDirtyOnSourceListReset()

Resets the TableDirtyOnSourceListReset back to its default value.

Declaration

public void ResetTableDirtyOnSourceListReset()

ResetUseLazyUniformChildListRelation()

Resets the UseLazyUniformChildListRelation property.

Declaration

public void ResetUseLazyUniformChildListRelation()

ResetUseOldListChangedHandler()

Resets the UseOldListChangedHandler property.

Declaration

public void ResetUseOldListChangedHandler()

ResetUseOldUniformChildListRelation()

Resets the UseOldUniformChildListRelation property.

Declaration

public void ResetUseOldUniformChildListRelation()

SetSourceList(IEnumerable)

Initializes the source list for the engine.

Declaration

public void SetSourceList(IEnumerable value)

Parameters

Type	Name	Description
System.Collections.IEnumerable	value	The new source list for the engine.

Remarks

If the passed in source list is the same as a previous SetSourceList(IEnumerable) call, the method will return without change to avoid duplicate initialization of the same list.

The Table will be reinitialized and the SetItemProperties(Object) of the TableDescriptor is called. A SourceListChanged event is raised.

ShouldReplaceSourceList()

Determines whether the SourceList should be reinitialized or not when next time GetSourceList() is called.

Declaration

protected virtual bool ShouldReplaceSourceList()

Returns

Type	Description
System.Boolean	True if the SourceList should be reinitialized the next time GetSourceList() is called; False if not.

Remarks

With a GridGroupingControl, the GridEngineBase method overloads this method and returns True if either the DataSource or DataMember property was changed.

ShouldSerializeCacheRecordValues()

Determines whether the CacheRecordValues has been modified from its default state or not.

Declaration

public bool ShouldSerializeCacheRecordValues()

Returns

Type	Description
System.Boolean	True if CacheRecordValues was manually modified; Otherwise False.

ShouldSerializeCultureInfo()

Determines whether Culture has been modified and its value should be serialized or not.

Declaration

public bool ShouldSerializeCultureInfo()

Returns

Type	Description
System.Boolean	True if the content is changed; Otherwise False.

ShouldSerializeEnableAutoSize()

Determines whether EnableAutoSize has been modified and its value should be serialized or not.

Declaration

public bool ShouldSerializeEnableAutoSize()

Returns

Type	Description
System.Boolean	True if the content is changed; Otherwise False.

ShouldSerializeMaxNestedCollectionRecurseLevel()

Determines whether MaxNestedCollectionRecurseLevel has been modified and its value should be serialized at design-time.

Declaration

public bool ShouldSerializeMaxNestedCollectionRecurseLevel()

Returns

Type	Description
System.Boolean	true if contents were changed; false otherwise.

ShouldSerializeMaxNestedFieldRecurseLevel()

Determines whether the MaxNestedFieldRecurseLevel has been modified or not. and its value should be serialized at design-time.

Declaration

public bool ShouldSerializeMaxNestedFieldRecurseLevel()

Returns

Type	Description
System.Boolean	True if contents were changed; Otherwise False.

ShouldSerializeTable()

Determines whether the Table object was created or not.

Declaration

public bool ShouldSerializeTable()

Returns

Type	Description
System.Boolean	True if the Table object was created; False if it is NULL

ShouldSerializeTableDescriptor()

Determines whether the TableDescriptor has been modified or not from its default state.

Declaration

public bool ShouldSerializeTableDescriptor()

Returns

Type	Description
System.Boolean	True if TableDescriptor was manually modified; False if it only contains auto-populated data.

ShouldSerializeTableDirtyOnSourceListReset()

Determines whether the TableDirtyOnSourceListReset has been modified or not from its default state.

Declaration

public bool ShouldSerializeTableDirtyOnSourceListReset()

Returns

Type	Description
System.Boolean	True if TableDirtyOnSourceListReset was manually modified;

ShouldSerializeUseLazyUniformChildListRelation()

Determines whether UseLazyUniformChildListRelation has been modified or not and its value should be serialized.

Declaration

public bool ShouldSerializeUseLazyUniformChildListRelation()

Returns

Type	Description
System.Boolean	True if the content is changed; Otherwise False.

ShouldSerializeUseOldListChangedHandler()

Determines whether UseOldListChangedHandler has been modified or not and its value should be serialized.

Declaration

public bool ShouldSerializeUseOldListChangedHandler()

Returns

Type	Description
System.Boolean	True if the content is changed; Otherwise False.

ShouldSerializeUseOldUniformChildListRelation()

Determines whether the UseOldUniformChildListRelation has been modified or not and its value should be serialized.

Declaration

public bool ShouldSerializeUseOldUniformChildListRelation()

Returns

Type	Description
System.Boolean	True if the content is changed; Otherwise False.

ToString()

Overridden to get the string representation of the engine.

Declaration

public override string ToString()

Returns

Type	Description
System.String	String representation of the current object.

Overrides

DescriptorBase.ToString()

UnwireSourceList()

Unwire the source list.

Declaration

protected virtual void UnwireSourceList()

WireSourceList()

Wires the source list.

Declaration

protected virtual void WireSourceList()

Events

CategorizedRecords

Occurs after records are categorized when a table is marked dirty (TableDirty).

Declaration

public event TableEventHandler CategorizedRecords

Event Type

Type
TableEventHandler

Remarks

When TableDirty is set True, e.g. because schema information for a table was changed or because the grouped columns were changed, the table will categorize records on demand the first time information about a record is accessed. At that time, the EnsureInitialized(Object) of the Table will start categorization.

CategorizingRecords

Occurs before records are categorized after a table is marked dirty (TableDirty).

Declaration

public event TableEventHandler CategorizingRecords

Event Type

Type
TableEventHandler

Remarks

When TableDirty is set to True, e.g. because schema information for a table was changed or because the grouped columns were changed, the table will categorize records on demand the first time information about a record is accessed. At that time, the EnsureInitialized(Object) of the Table will start categorization.

CurrentRecordContextChange

Occurs before and after the status of the current record was changed. Check the Action of the CurrentRecordContextChangeEventArgs to get information which current record state was changed.

Declaration

public event CurrentRecordContextChangeEventHandler CurrentRecordContextChange

Event Type

Type
CurrentRecordContextChangeEventHandler

CurrentRecordManagerReset

Occurs when the Reset() method of the CurrentRecordManager was called.

Declaration

public event TableEventHandler CurrentRecordManagerReset

Event Type

Type
TableEventHandler

Remarks

The GridGroupingControl listens to this event and resets any "Current Cell" state when this event was raised.

DisplayElementChanged

When number of visible elements are changed.

Declaration

public event DisplayElementChangedEventHandler DisplayElementChanged

Event Type

Type
DisplayElementChangedEventHandler

DisplayElementChanging

When number of visible elements are changed.

Declaration

public event DisplayElementChangingEventHandler DisplayElementChanging

Event Type

Type
DisplayElementChangingEventHandler

ExceptionRaised

Occurs when an unknown exception has been cached while modifying underlying data in the data source.

Declaration

public event ExceptionRaisedEventHandler ExceptionRaised

Event Type

Type
ExceptionRaisedEventHandler

Remarks

If necessary, you can re-throw the exception in your event handler.

GroupAdded

Occurs when a new group is added in a table after the table is categorized and when a record is changed. The event does not occur during categorization of the table. See the CategorizedRecords elements to when categorization finishes.

Declaration

public event GroupEventHandler GroupAdded

Event Type

Type
GroupEventHandler

GroupCollapsed

Occurs after a group is collapsed.

Declaration

public event GroupEventHandler GroupCollapsed

Event Type

Type
GroupEventHandler

GroupCollapsing

Occurs before a group is collapsed.

Declaration

public event GroupEventHandler GroupCollapsing

Event Type

Type
GroupEventHandler

GroupExpanded

Occurs after a group is expanded.

Declaration

public event GroupEventHandler GroupExpanded

Event Type

Type
GroupEventHandler

GroupExpanding

Occurs before a group is expanded.

Declaration

public event GroupEventHandler GroupExpanding

Event Type

Type
GroupEventHandler

GroupRemoving

Occurs when a group is removed from a table after the table is categorized and when a record is changed. The event does not occur during categorization of the table. See the CategorizedRecords elements to when categorization finishes.

Declaration

public event GroupEventHandler GroupRemoving

Event Type

Type
GroupEventHandler

GroupSummaryInvalidated

Occurs when a summary has been marked dirty.

Declaration

public event GroupEventHandler GroupSummaryInvalidated

Event Type

Type
GroupEventHandler

Remarks

The GridGroupingControl listens to this event and forces a repaint of the specified summary if it is visible when this event was raised.

InvalidatingCounters

Occurs when the InvalidateCounterTopDown(Boolean) of a Table is called and before all counters are marked dirty.

Declaration

public event TableEventHandler InvalidatingCounters

Event Type

Type
TableEventHandler

InvalidatingSummaries

Occurs when the InvalidateSummariesTopDown() of a Table is called and before all summaries in that table are marked dirty.

Declaration

public event TableEventHandler InvalidatingSummaries

Event Type

Type
TableEventHandler

PropertyChanged

Occurs when a property is changed.

Declaration

public event DescriptorPropertyChangedEventHandler PropertyChanged

Event Type

Type
DescriptorPropertyChangedEventHandler

PropertyChanging

Occurs before a property is changed.

Declaration

public event DescriptorPropertyChangedEventHandler PropertyChanging

Event Type

Type
DescriptorPropertyChangedEventHandler

QueryAddRelation

This event affects the auto-population of the RelationDescriptorCollection.

It is called for each relation and lets you control at run-time if the relation should be added to the RelationDescriptorCollection. You can set e.Cancel = True to avoid specific relations being added.

Declaration

public event QueryAddRelationEventHandler QueryAddRelation

Event Type

Type
QueryAddRelationEventHandler

QueryRecordMeetsFilterCriteria

Occurs when a record is checked whether it meets filter criteria and should appear visible in the tables DisplayElements.

Declaration

public event QueryRecordMeetsFilterCriteriaEventHandler QueryRecordMeetsFilterCriteria

Event Type

Type
QueryRecordMeetsFilterCriteriaEventHandler

QueryShowField

This event affects the auto-population of the FieldDescriptorCollection.

It is called for each field and lets you control at run-time if a specific field should be added to the FieldDescriptorCollection. You can set e.Cancel = True to avoid specific fields being added.

Declaration

public event QueryShowFieldEventHandler QueryShowField

Event Type

Type
QueryShowFieldEventHandler

QueryShowNestedPropertiesFields

This event affects the auto-population of the FieldDescriptorCollection.

It lets you control at run-time if individual fields should be added for every property of a type when a type has nested properties. You can set e.Cancel = true to avoid nested fields being generated for a specific type.

Declaration

public event QueryShowNestedPropertiesFieldsEventHandler QueryShowNestedPropertiesFields

Event Type

Type
QueryShowNestedPropertiesFieldsEventHandler

QueryShowRelationDisplayFields

This event affects the auto-population of the FieldDescriptorCollection.

It is called for each foreign key relation and lets you control at run-time if the related fields of the child table should be added to the FieldDescriptorCollection. You can set e.Cancel = True to avoid specific fields being added.

Declaration

public event QueryShowRelationFieldsEventHandler QueryShowRelationDisplayFields

Event Type

Type
QueryShowRelationFieldsEventHandler

QueryValue

Occurs when a value for a field descriptor and record is returned. See the Grid.Grouping\Samples\CustomSummary. sample how to use this event with unbound field descriptors.

Declaration

public event FieldValueEventHandler QueryValue

Event Type

Type
FieldValueEventHandler

RecordCollapsed

Occurs after a record with nested tables is collapsed.

Declaration

public event RecordEventHandler RecordCollapsed

Event Type

Type
RecordEventHandler

RecordCollapsing

Occurs before a record with nested tables is collapsed.

Declaration

public event RecordEventHandler RecordCollapsing

Event Type

Type
RecordEventHandler

RecordDeleted

Occurs after a record is deleted.

Declaration

public event RecordEventHandler RecordDeleted

Event Type

Type
RecordEventHandler

Remarks

This event is raised only when the Table or Record triggers the deletion. If the underlying source list deletes the record, a SourceListListChanged event is raised instead.

RecordDeleting

Occurs before a record is deleted.

Declaration

public event RecordEventHandler RecordDeleting

Event Type

Type
RecordEventHandler

Remarks

This event is raised only when the Table or Record triggers the deletion. If the underlying source list deletes the record, a SourceListListChanged event is raised instead.

RecordExpanded

Occurs after a record with nested tables is expanded.

Declaration

public event RecordEventHandler RecordExpanded

Event Type

Type
RecordEventHandler

RecordExpanding

Occurs before a record with nested tables is expanded.

Declaration

public event RecordEventHandler RecordExpanding

Event Type

Type
RecordEventHandler

RecordValueChanged

Occurs when a RecordFieldCell cell's value is changed and after Record.SetValue is returned.

Declaration

public event RecordValueChangedEventHandler RecordValueChanged

Event Type

Type
RecordValueChangedEventHandler

RecordValueChanging

Occurs when a RecordFieldCell cell's value is changed and before Record.SetValue is called.

Declaration

public event RecordValueChangingEventHandler RecordValueChanging

Event Type

Type
RecordValueChangingEventHandler

SaveValue

Occurs when values for a field descriptor and record are saved. See the Grid.Grouping\Samples\CustomSummary. sample how to use this event with unbound field descriptors.

Declaration

public event FieldValueEventHandler SaveValue

Event Type

Type
FieldValueEventHandler

SelectedRecordsChanged

Occurs after the SelectedRecords collection was modified.

Declaration

public event SelectedRecordsChangedEventHandler SelectedRecordsChanged

Event Type

Type
SelectedRecordsChangedEventHandler

SelectedRecordsChanging

Occurs after the SelectedRecords collection was modified.

Declaration

public event SelectedRecordsChangedEventHandler SelectedRecordsChanging

Event Type

Type
SelectedRecordsChangedEventHandler

SortedItemsInGroup

Occurs after the records for a group are sorted.

Declaration

public event GroupEventHandler SortedItemsInGroup

Event Type

Type
GroupEventHandler

Remarks

The engine has a built-in optimization for sorting columns that allows it to perform the sorting on an on-demand basis group-by-group. Suppose you have a table with 200 different countries and you change the sort order of city. It is not necessary to sort the whole table. Instead the individual groups can be sorted when they are scrolled into view. SortingItemsInGroup and SortedItemsInGroup events are fired in such case when a specific group was sorted on demand.

If the whole table was set dirty (see TableDirty), then the whole table is simply recategorized. In that case only a CategorizedElements event is raised but no SortedItemsInGroup event.

SortingItemsInGroup

Occurs before the records for a group are sorted.

Declaration

public event GroupEventHandler SortingItemsInGroup

Event Type

Type
GroupEventHandler

Remarks

If the whole table was set dirty (see TableDirty), then the whole table is simply recategorized. In that case only a CategorizedElements event is raised but no SortingItemsInGroup event.

SourceListChanged

Occurs after the main data source was replaced with a SetSourceList(IEnumerable) method call.

Declaration

public event EventHandler SourceListChanged

Event Type

Type
System.EventHandler

Remarks

With a GridGroupingControl when you set the data source and data member, the SetSourceList(IEnumerable) method will be called on demand the first time data or schema information needs to be retrieved.

SourceListListChanged

Occurs before the Table processes the System.ComponentModel.IBindingList.ListChanged event of an attached source list. More detailed SourceListRecordChanged events will be raised after this event.

Declaration

public event TableListChangedEventHandler SourceListListChanged

Event Type

Type
TableListChangedEventHandler

Remarks

The reason for firing this event is to give a programmer the chance to react to a System.ComponentModel.IBindingList.ListChanged event before the engine since there is otherwise no order guaranteed when an IBindingList raises a ListChanged event.

SourceListListChangedCompleted

Occurs after the Table processes the System.ComponentModelIBindingList.ListChanged event of an attached source list.

Declaration

public event TableListChangedEventHandler SourceListListChangedCompleted

Event Type

Type
TableListChangedEventHandler

Remarks

The reason for firing this event is to give a programmer the chance to react to a System.ComponentModel.IBindingList.ListChanged event right after the engine since there is otherwise no order guaranteed when an IBindingList raises a ListChanged event.

SourceListRecordChanged

Occurs when a record in the underlying data source is added, removed, or changed and after the Table is updated with that change.

Declaration

public event RecordChangedEventHandler SourceListRecordChanged

Event Type

Type
RecordChangedEventHandler

SourceListRecordChanging

Occurs when a record in the underlying data source is added, removed, or changed and before the Table is updated with that change.

Declaration

public event RecordChangedEventHandler SourceListRecordChanging

Event Type

Type
RecordChangedEventHandler

TableCreated

Occurs after the Table object is created.

Declaration

public event EventHandler TableCreated

Event Type

Type
System.EventHandler

TableDescriptorCreated

Occurs after the TableDescriptor object is created.

Declaration

public event EventHandler TableDescriptorCreated

Event Type

Type
System.EventHandler

TableSourceListChanged

Occurs after the data-source is replaced.

Declaration

public event TableEventHandler TableSourceListChanged

Event Type

Type
TableEventHandler

Explicit Interface Implementations

ITableEventsTarget.OnCategorizedRecords(TableEventArgs)

Occurs when the record are categorized.

Declaration

void ITableEventsTarget.OnCategorizedRecords(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

ITableEventsTarget.OnCategorizingRecords(TableEventArgs)

Occurs when the records are categorizing.

Declaration

void ITableEventsTarget.OnCategorizingRecords(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

ITableEventsTarget.OnCurrentRecordContextChange(CurrentRecordContextChangeEventArgs)

Occur when the current record context changed.

Declaration

void ITableEventsTarget.OnCurrentRecordContextChange(CurrentRecordContextChangeEventArgs e)

Parameters

Type	Name	Description
CurrentRecordContextChangeEventArgs	e	The CurrentRecordContextChangeEventArgs contains the event data.

ITableEventsTarget.OnCurrentRecordManagerReset(TableEventArgs)

Occurs when the current record manger gets reset.

Declaration

void ITableEventsTarget.OnCurrentRecordManagerReset(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	The TableEventArgs contains the event data.

ITableEventsTarget.OnDisplayElementChanged(DisplayElementChangedEventArgs)

Occurs when the display element is changed.

Declaration

void ITableEventsTarget.OnDisplayElementChanged(DisplayElementChangedEventArgs e)

Parameters

Type	Name	Description
DisplayElementChangedEventArgs	e	A DisplayElementChangedEventArgs contains the event data.

ITableEventsTarget.OnDisplayElementChanging(DisplayElementChangingEventArgs)

Occurs when the display element is getting change.

Declaration

void ITableEventsTarget.OnDisplayElementChanging(DisplayElementChangingEventArgs e)

Parameters

Type	Name	Description
DisplayElementChangingEventArgs	e	A DisplayElementChangingEventArgs contains the event data.

ITableEventsTarget.OnExceptionRaised(ExceptionRaisedEventArgs)

Occurs when the exception is raised.

Declaration

void ITableEventsTarget.OnExceptionRaised(ExceptionRaisedEventArgs e)

Parameters

Type	Name	Description
ExceptionRaisedEventArgs	e	The ExceptionRaisedEventArgs contains the event data.

ITableEventsTarget.OnGroupAdded(GroupEventArgs)

Declaration

void ITableEventsTarget.OnGroupAdded(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e

ITableEventsTarget.OnGroupCollapsed(GroupEventArgs)

Occurs when the group is collapsed.

Declaration

void ITableEventsTarget.OnGroupCollapsed(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnGroupCollapsing(GroupEventArgs)

Occurs when the group is collapsing.

Declaration

void ITableEventsTarget.OnGroupCollapsing(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnGroupExpanded(GroupEventArgs)

Occurs when the group is expanded.

Declaration

void ITableEventsTarget.OnGroupExpanded(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnGroupExpanding(GroupEventArgs)

Occurs when the group is expanding.

Declaration

void ITableEventsTarget.OnGroupExpanding(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnGroupRemoving(GroupEventArgs)

Occurs when the group gets removing.

Declaration

void ITableEventsTarget.OnGroupRemoving(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnGroupSummaryInvalidated(GroupEventArgs)

Occurs when the group summary gets reset.

Declaration

void ITableEventsTarget.OnGroupSummaryInvalidated(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	The GroupEventArgs contains the event data.

ITableEventsTarget.OnInvalidatingCounters(TableEventArgs)

Occurs when the counters getting reset.

Declaration

void ITableEventsTarget.OnInvalidatingCounters(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

ITableEventsTarget.OnInvalidatingSummaries(TableEventArgs)

Occurs when the summary getting reset.

Declaration

void ITableEventsTarget.OnInvalidatingSummaries(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs contains the event data.

ITableEventsTarget.OnRecordCollapsed(RecordEventArgs)

Occurs when the record is collapsed.

Declaration

void ITableEventsTarget.OnRecordCollapsed(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	The RecordEventArgs contains the event data.

ITableEventsTarget.OnRecordCollapsing(RecordEventArgs)

Occurs when the record is collapsing.

Declaration

void ITableEventsTarget.OnRecordCollapsing(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	The RecordEventArgs contains the event data.

ITableEventsTarget.OnRecordDeleted(RecordEventArgs)

Occurs when the record gets deleted.

Declaration

void ITableEventsTarget.OnRecordDeleted(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e

ITableEventsTarget.OnRecordDeleting(RecordEventArgs)

Occurs when the record gets deleting.

Declaration

void ITableEventsTarget.OnRecordDeleting(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	The RecordEventArgs contains the event data.

ITableEventsTarget.OnRecordExpanded(RecordEventArgs)

Occurs when the record is expanded.

Declaration

void ITableEventsTarget.OnRecordExpanded(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	The RecordEventArgs contains the event data.

ITableEventsTarget.OnRecordExpanding(RecordEventArgs)

Occurs when the record is expanding.

Declaration

void ITableEventsTarget.OnRecordExpanding(RecordEventArgs e)

Parameters

Type	Name	Description
RecordEventArgs	e	The RecordEventArgs contains the event data.

ITableEventsTarget.OnRecordValueChanged(RecordValueChangedEventArgs)

Occurs when the record value is changed.

Declaration

void ITableEventsTarget.OnRecordValueChanged(RecordValueChangedEventArgs e)

Parameters

Type	Name	Description
RecordValueChangedEventArgs	e	A RecordValueChangingEventArgs contains the event data.

ITableEventsTarget.OnRecordValueChanging(RecordValueChangingEventArgs)

Occurs when the record value is changing.

Declaration

void ITableEventsTarget.OnRecordValueChanging(RecordValueChangingEventArgs e)

Parameters

Type	Name	Description
RecordValueChangingEventArgs	e	A RecordValueChangingEventArgs contains the event data.

ITableEventsTarget.OnSelectedRecordsChanged(SelectedRecordsChangedEventArgs)

Occurs when the selected records changed.

Declaration

void ITableEventsTarget.OnSelectedRecordsChanged(SelectedRecordsChangedEventArgs e)

Parameters

Type	Name	Description
SelectedRecordsChangedEventArgs	e	A SelectedRecordsChangedEventArgs contains the event data.

ITableEventsTarget.OnSelectedRecordsChanging(SelectedRecordsChangedEventArgs)

Occurs when the selected records getting change.

Declaration

void ITableEventsTarget.OnSelectedRecordsChanging(SelectedRecordsChangedEventArgs e)

Parameters

Type	Name	Description
SelectedRecordsChangedEventArgs	e	A SelectedRecordsChangedEventArgs contains the event data.

ITableEventsTarget.OnSortedItemsInGroup(GroupEventArgs)

Occurs when the items in the group gets sorted.

Declaration

void ITableEventsTarget.OnSortedItemsInGroup(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

ITableEventsTarget.OnSortingItemsInGroup(GroupEventArgs)

Occurs when the items in the group gets sorting.

Declaration

void ITableEventsTarget.OnSortingItemsInGroup(GroupEventArgs e)

Parameters

Type	Name	Description
GroupEventArgs	e	A GroupEventArgs contains the event data.

ITableEventsTarget.OnSourceListListChanged(TableListChangedEventArgs)

Raises when the source list is changed.

Declaration

void ITableEventsTarget.OnSourceListListChanged(TableListChangedEventArgs e)

Parameters

Type	Name	Description
TableListChangedEventArgs	e	The TableListChangedEventArgs contains the event data.

ITableEventsTarget.OnSourceListListChangedCompleted(TableListChangedEventArgs)

Occurs when the source list change gets completed.

Declaration

void ITableEventsTarget.OnSourceListListChangedCompleted(TableListChangedEventArgs e)

Parameters

Type	Name	Description
TableListChangedEventArgs	e	The TableListChangedEventArgs contains the event data.

ITableEventsTarget.OnSourceListRecordChanged(RecordChangedEventArgs)

Occurs when the source list record gets changed.

Declaration

void ITableEventsTarget.OnSourceListRecordChanged(RecordChangedEventArgs e)

Parameters

Type	Name	Description
RecordChangedEventArgs	e	The RecordChangedEventArgs contains the event data.

ITableEventsTarget.OnSourceListRecordChanging(RecordChangedEventArgs)

Occurs when the source list record is changing.

Declaration

void ITableEventsTarget.OnSourceListRecordChanging(RecordChangedEventArgs e)

Parameters

Type	Name	Description
RecordChangedEventArgs	e	The RecordChangedEventArgs contains the event data

ITableEventsTarget.OnTableSourceListChanged(TableEventArgs)

Occurs when the table source list is changed.

Declaration

void ITableEventsTarget.OnTableSourceListChanged(TableEventArgs e)

Parameters

Type	Name	Description
TableEventArgs	e	A TableEventArgs that contains the event data.

Implements

System.ComponentModel.ICustomTypeDescriptor

System.IDisposable

ITableEventsTarget