Class GridQueryableCollectionViewWrapper

Represents the wrapper class that implements the QueryableCollectionView to create a queried collection based on which data manipulation is performed.

Inheritance
System.Object
CollectionViewAdv
QueryableCollectionView
GridQueryableCollectionViewWrapper
Implements
System.Collections.IEnumerable
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
System.Collections.Specialized.INotifyCollectionChanged
Inherited Members
Namespace: Syncfusion.Maui.DataGrid
Assembly: Syncfusion.Maui.DataGrid.dll
Syntax
public class GridQueryableCollectionViewWrapper : QueryableCollectionView, ICollectionViewAdv, IEnumerable, INotifyPropertyChanged, ISupportInitialize, ISupportIncrementalLoading, IDisposable, IPropertyChangedEventHandler, IEditableCollectionView, INotifyCollectionChanged, IUnboundExpressionFunc, IGridViewNotifier, IFilterExt, IParallelizableView

Constructors

GridQueryableCollectionViewWrapper(IEnumerable, SfDataGrid)

Initializes a new instance of the GridQueryableCollectionViewWrapper class using the specified source and dataGrid object.

Declaration
public GridQueryableCollectionViewWrapper(IEnumerable source, SfDataGrid grid)
Parameters
Type Name Description
System.Collections.IEnumerable source

The item source of the collection.
SfDataGrid grid

The reference of the SfDataGrid.

Methods

CanUpdateSummary(ISummaryRow, String)

Checks whether the property change affects the UpboundCoulmn summary in corresponding SummaryRow.

Declaration
protected override bool CanUpdateSummary(ISummaryRow row, string propertyName)
Parameters
Type Name Description
ISummaryRow row

row.
System.String propertyName

propertyName.
Returns
Type Description
System.Boolean

true if the property change affects UpboundCoulmn summary in corresponding SummaryRow; otherwise false.
Overrides

CreateItemPropertiesProvider()

Creates a new instance of the Syncfusion.Maui.DataGrid.GridItemPropertiesProvider class.

Declaration
protected override ItemPropertiesProvider CreateItemPropertiesProvider()
Returns
Type Description
ItemPropertiesProvider

A new instance of the Syncfusion.Maui.DataGrid.GridItemPropertiesProvider class.
Overrides

CreateRecords()

Create records list based on the source provided by view.

Declaration
protected override RecordsList CreateRecords()
Returns
Type Description
RecordsList

Returns RecordsList.
Overrides
Remarks

Creates Syncfusion.Maui.Data.VirtualRecordsList when SfDataGrid.EnableDataVirtualization is true.

CreateTopLevelGroup()

Creates TopLevelGroup while grouping for view.

Declaration
protected override TopLevelGroup CreateTopLevelGroup()
Returns
Type Description
TopLevelGroup

Returns TopLevelGroup.
Overrides
Remarks

Creates Syncfusion.Maui.DataGrid.GridVirtualizingTopLevelGroup when SfDataGrid.EnableDataVirtualization is true.

Dispose(Boolean)

Releases the unmanaged resources used by the component and optionally releases the managed resources.

Declaration
protected override void Dispose(bool isDisposing)
Parameters
Type Name Description
System.Boolean isDisposing

if true - release both managed and unmanaged resources; if false - release only unmanaged resources.
Overrides

GetDataGrid()

Gets the reference of the DataGrid in the view.

Declaration
public override object GetDataGrid()
Returns
Type Description
System.Object

The reference of the DataGrid in the view.
Overrides

GetDisplayValueFunc(String, DataOperation)

Returns a function for getting the display value for the given property and data operation.

Declaration
public override Func<string, object, object> GetDisplayValueFunc(string propertyName, DataOperation operation)
Parameters
Type Name Description
System.String propertyName

The property name which has changed.
DataOperation operation

The DataOperation which indicates the data operations (sorting, grouping, etc) performed in the underlying collection.
Returns
Type Description
System.Func<System.String, System.Object, System.Object>

System.Func<, , > for getting the display value for the given property and data operation.
Overrides

GetExpressionFunc(String, DataOperation, DataReflectionMode)

Returns Expression function for the property, data operation and reflection mode.

Declaration
public override Expression<Func<string, object, object>> GetExpressionFunc(string propertyName, DataOperation operation, DataReflectionMode reflectionMode)
Parameters
Type Name Description
System.String propertyName

The property name which has changed.
DataOperation operation

The DataOperation which indicates the data operations (sorting, grouping, etc) performed in the underlying collection.
DataReflectionMode reflectionMode

The DataReflectionMode which indicates the mode of data change specifying either in display mode, value mode or mapping name.
Returns
Type Description
System.Linq.Expressions.Expression<System.Func<System.String, System.Object, System.Object>>

Expression System.Func<, , > for the given property, data operation and the reflection mode.
Overrides

GetFunc(String, DataOperation, DataReflectionMode)

Returns System.Func<, , > for the given property, data operation and the reflection mode.

Declaration
public override Func<string, object, object> GetFunc(string propertyName, DataOperation operation, DataReflectionMode reflectionMode)
Parameters
Type Name Description
System.String propertyName

The property name which has changed.
DataOperation operation

The DataOperation which indicates the data operations (sorting, grouping, etc) performed in the underlying collection.
DataReflectionMode reflectionMode

The DataReflectionMode which indicates the mode of data change specifying either in display mode, value mode or mapping name.
Returns
Type Description
System.Func<System.String, System.Object, System.Object>

System.Func<, , > for the given property, data operation and the reflection mode.
Overrides

Implements

System.Collections.IEnumerable
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
System.Collections.Specialized.INotifyCollectionChanged

Extension Methods