Class VirtualizingCollectionView
Represents a view for grouping, sorting, filtering, and navigating a data collection in on-demand.
Inheritance
System.Object
VirtualizingCollectionView
Implements
System.ComponentModel.ICollectionView
System.Collections.IEnumerable
System.Collections.Specialized.INotifyCollectionChanged
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
System.ComponentModel.IEditableCollectionView
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Assembly: Syncfusion.Data.WPF.dll
Syntax
public class VirtualizingCollectionView : QueryableCollectionView, ICollectionViewAdv, ICollectionView, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged, ISupportInitialize, IDisposable, IPropertyChangedEventHandler, IEditableCollectionView, ISupportIncrementalLoading, IUnboundExpressionFunc, IGridViewNotifier, IFilterExt, IParallelizableView
Constructors
VirtualizingCollectionView()
Declaration
public VirtualizingCollectionView()
VirtualizingCollectionView(IEnumerable)
Declaration
public VirtualizingCollectionView(IEnumerable source)
Parameters
Type |
Name |
Description |
System.Collections.IEnumerable |
source |
|
Properties
RecordDictionary
Declaration
[Obsolete]
public Dictionary<int, RecordEntry> RecordDictionary { get; }
Property Value
Type |
Description |
System.Collections.Generic.Dictionary<System.Int32, RecordEntry> |
|
Methods
ApplyFilter(Predicate<Object>)
Applies filter based on specified RowFilter.
Declaration
protected virtual void ApplyFilter(Predicate<object> rowFilter)
Parameters
Type |
Name |
Description |
System.Predicate<System.Object> |
rowFilter |
Specifies the RowFilter to apply filter on collection
|
CreateRecords()
Declaration
protected override sealed RecordsList CreateRecords()
Returns
Overrides
CreateRowFilterPredicate()
Declaration
protected override void CreateRowFilterPredicate()
Overrides
CreateTopLevelGroup()
Declaration
protected override TopLevelGroup CreateTopLevelGroup()
Returns
Overrides
GetGroupedSource(String[])
Gets the grouped result by specified properties.
Declaration
protected virtual IEnumerable<GroupResult> GetGroupedSource(string[] groupBy)
Parameters
Type |
Name |
Description |
System.String[] |
groupBy |
Specifies the properties to get the group result on collection
|
Returns
Type |
Description |
System.Collections.Generic.IEnumerable<GroupResult> |
Returns the collection of GroupResult.
|
GetGroupResult(String[])
Declaration
protected override sealed IEnumerable<GroupResult> GetGroupResult(string[] groupBy)
Parameters
Type |
Name |
Description |
System.String[] |
groupBy |
|
Returns
Type |
Description |
System.Collections.Generic.IEnumerable<GroupResult> |
|
Overrides
GetIndexOf(Object)
Gets the index at which the specified item is located.
Declaration
protected virtual int GetIndexOf(object item)
Parameters
Type |
Name |
Description |
System.Object |
item |
Specifies the item to get the index
|
Returns
Type |
Description |
System.Int32 |
Returns the index at which the specified item is located
|
GetItemProperties()
Declaration
public override PropertyDescriptorCollection GetItemProperties()
Returns
Type |
Description |
System.ComponentModel.PropertyDescriptorCollection |
|
Overrides
GetSourceList()
Gets the SourceCollection to load items source in FilterPop-up control.
Declaration
public virtual IEnumerable GetSourceList()
Returns
Type |
Description |
System.Collections.IEnumerable |
Returns the source that were in view.
Used in GridFilterControl. Other CollectionViewAdv returns source from CollectionViewAdv.Records.
|
GetViewRecordCount()
Gets the records count that are inview.
Declaration
[Obsolete]
public virtual int GetViewRecordCount()
Returns
Type |
Description |
System.Int32 |
Returns the records count that are inview.
|
IndexOf(Object)
Declaration
public override int IndexOf(object item)
Parameters
Type |
Name |
Description |
System.Object |
item |
|
Returns
Type |
Description |
System.Int32 |
|
Overrides
OnSortDescriptionChanged(NotifyCollectionChangedEventArgs)
Declaration
protected override sealed void OnSortDescriptionChanged(NotifyCollectionChangedEventArgs e)
Parameters
Type |
Name |
Description |
System.Collections.Specialized.NotifyCollectionChangedEventArgs |
e |
|
Overrides
ProcessSort(SortDescriptionCollection)
Sorts the elements in the collection based on specified sort description.
Declaration
protected virtual void ProcessSort(SortDescriptionCollection sortDescription)
Parameters
Type |
Name |
Description |
System.ComponentModel.SortDescriptionCollection |
sortDescription |
Specifies the sort description to sort the collection
|
RefreshGroupAfterFiltering(List<Group>)
Declaration
[Obsolete]
protected void RefreshGroupAfterFiltering(List<Group> groups)
Parameters
Type |
Name |
Description |
System.Collections.Generic.List<Group> |
groups |
|
RefreshSort()
Declaration
protected override sealed void RefreshSort()
Overrides
ResetFilter()
Declaration
protected override void ResetFilter()
Overrides
SetSource(IEnumerable)
Declaration
protected override void SetSource(IEnumerable _source)
Parameters
Type |
Name |
Description |
System.Collections.IEnumerable |
_source |
|
Overrides
Implements
System.ComponentModel.ICollectionView
System.Collections.IEnumerable
System.Collections.Specialized.INotifyCollectionChanged
System.ComponentModel.INotifyPropertyChanged
System.IDisposable
System.ComponentModel.IEditableCollectionView
Extension Methods