'Declaration Public Event QueryItemCount As EventHandler(Of QueryItemCountEventArgs)
'Usage Dim instance As DataGridVirtualizingCollectionView Dim handler As EventHandler(Of QueryItemCountEventArgs) AddHandler instance.QueryItemCount, handler
public event EventHandler<QueryItemCountEventArgs> QueryItemCount
Event Data
The event handler receives an argument of type QueryItemCountEventArgs containing data related to this event. The following QueryItemCountEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| AsyncQueryInfo | Gets an AsyncQueryInfo that provides the information necessary to retrieve the next batch of items. |
| CollectionView | Gets the DataGridVirtualizingCollectionView to which the grid is bound. |
| GroupPath | Gets a read only collection of DataGridGroupInfo objects, which provide information on the parent groups. |
| IsAsync | true if the event is asynchronous, otherwise false. By default, false. (Inherited from Xceed.Wpf.DataGrid.AsyncQueryEventArgs) |
Remarks
The GroupPath allows us to target a specific group. The elements returned are all those found in the data source, once filters are applied (GroupPath is empty), or only those contained under the specified group (GroupPath isn't empty).
Requirements
Target Platforms: Windows 11, Windows, 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
See Also