Class GridVirtualizingCollectionView

Represents a class that maintains the common functionalities of Virtualizingcollectionview in SfDataGrid.

Inheritance
System.Object
CollectionViewAdv
QueryableCollectionView
VirtualizingCollectionView
GridVirtualizingCollectionView
Implements
Microsoft.UI.Xaml.Data.ICollectionView
Windows.Foundation.Collections.IObservableVector<System.Object>
System.Collections.Generic.IList<System.Object>
System.Collections.Generic.ICollection<System.Object>
System.Collections.Generic.IEnumerable<System.Object>
System.Collections.IEnumerable
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
Inherited Members
Namespace: Syncfusion.UI.Xaml.DataGrid
Assembly: Syncfusion.Grid.WinUI.dll
Syntax
public class GridVirtualizingCollectionView : VirtualizingCollectionView, ICollectionViewAdv, ICollectionView, IObservableVector<object>, IList<object>, ICollection<object>, IEnumerable<object>, IEnumerable, INotifyPropertyChanged, ISupportInitialize, IDisposable, IEditableCollectionView, IUnboundExpressionFunc, IGridViewNotifier, IFilterPredicateExpression, IParallelizableView

Constructors

GridVirtualizingCollectionView()

Initializes a new instance of GridVirtualizingCollectionView class.

Declaration
public GridVirtualizingCollectionView()

GridVirtualizingCollectionView(IEnumerable)

Initializes a new instance of GridVirtualizingCollectionView with a specified System.Collections.IEnumerable source.

Declaration
public GridVirtualizingCollectionView(IEnumerable source)
Parameters
Type Name Description
System.Collections.IEnumerable source

GridVirtualizingCollectionView(IEnumerable, SfDataGrid)

Initializes a new instance of GridVirtualizingCollectionView class with specified SfDataGrid and System.Collections.IEnumerable source.

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

Methods

AttachGridView(Object)

Sets the Grid in the view.

Declaration
public override void AttachGridView(object dataGrid)
Parameters
Type Name Description
System.Object dataGrid

The SfDatagrid.
Overrides

CanUpdateSummary(ISummaryRow, String)

Checks whether the property changes affect the corresponding SummaryRow of UpboundCoulmn

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 corresponding propertyName is corresponding SummaryRow of UpboundCoulmn
Overrides

CreateItemPropertiesProvider()

Creates the item properties provider.

Declaration
protected override ItemPropertiesProvider CreateItemPropertiesProvider()
Returns
Type Description
ItemPropertiesProvider

The item properties provider.
Overrides

CreateTopLevelGroup()

Creates a TopLevelGroup.

Declaration
protected override sealed TopLevelGroup CreateTopLevelGroup()
Returns
Type Description
TopLevelGroup

A GridVirtualizingTopLevelGroup
Overrides

DetachGridView()

Releases all the datagrids in view.

Declaration
public override void DetachGridView()
Overrides

Dispose(Boolean)

Disposes all the resources used by the GridVirtualizingCollectionView class.

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

Indicates whether the call is from Dispose method or from a finalizer.
Overrides

GetDataGrid()

Gets the SfDataGrid.

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

The SfDataGrid.
Overrides

GetDisplayValueFunc(String, DataOperation)

Gets the display value Func.

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

The Specified property name.
DataOperation operation

The Data operation.
Returns
Type Description
System.Func<System.String, System.Object, System.Object>

The display value Func.
Overrides

GetExpressionFunc(String, DataOperation, DataReflectionMode)

Returns Expression func for corresponding Dataoperation and Property Name.

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

propertyName
DataOperation operation

Data operation
DataReflectionMode reflectionMode

Reflection Mode
Returns
Type Description
System.Linq.Expressions.Expression<System.Func<System.String, System.Object, System.Object>>

ExpressionFunc
Overrides

GetFunc(String, DataOperation, DataReflectionMode)

Returns func for corresponding Dataoperation and Property Name.

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

Property Name
DataOperation operation

Data operation
DataReflectionMode reflectionMode

Data Reflection mode
Returns
Type Description
System.Func<System.String, System.Object, System.Object>

Func
Overrides

RaiseExceptionThrownEvent(Exception)

Raises the ExceptionThrown event.

Declaration
protected override void RaiseExceptionThrownEvent(Exception e)
Parameters
Type Name Description
System.Exception e
Overrides

Implements

Microsoft.UI.Xaml.Data.ICollectionView
Windows.Foundation.Collections.IObservableVector<>
System.Collections.Generic.IList<>
System.Collections.Generic.ICollection<>
System.Collections.Generic.IEnumerable<>
System.Collections.IEnumerable
System.ComponentModel.INotifyPropertyChanged
System.IDisposable

Extension Methods