FilterEventHandler Delegate
Represents the method that will handle the CollectionViewSource.Filter event.
Assembly: PresentationFramework (in PresentationFramework.dll)
'Declaration Public Delegate Sub FilterEventHandler ( _ sender As Object, _ e As FilterEventArgs _ )
Parameters
- sender
- Type: System.Object
The source of the event.
- e
- Type: System.Windows.Data.FilterEventArgs
The event data.
The following example shows how to set an event handler for the CollectionViewSource.Filter event. In this example, listingDataView is an instance of CollectionViewSource.
The following example shows the implementation of the example ShowOnlyBargainsFilter filter event handler. This event handler uses the FilterEventArgs.Accepted property to filter out AuctionItem objects that have a CurrentPrice of $25.00 or greater.
Private Sub ShowOnlyBargainsFilter(ByVal sender As Object, ByVal e As FilterEventArgs) Dim product As AuctionItem = CType(e.Item, AuctionItem) If Not (product Is Nothing) Then 'Filter out products with price 25 or above If product.CurrentPrice < 25 Then e.Accepted = True Else e.Accepted = False End If End If End Sub
For the complete example, see Data Binding Demo.
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
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.