ISelectionService::SelectionChanging Event
.NET Framework (current version)
Occurs when the current selection is about to change.
Assembly: System (in System.dll)
Minimize processing when handling this event, because processing that occurs within this event handler can significantly affect the overall performance of the form designer.
The following example illustrates how to use the SelectionChanging event.
// Add SelectionChanging event handler to event m_selectionService->SelectionChanging += gcnew EventHandler( this, &ComponentClass::OnSelectionChanging );
/* This is the OnSelectionChanging handler method. This method calls OnUserChange to display a message that indicates the name of the handler that made the call and the type of the event argument. */ void OnSelectionChanging( Object^ /*sender*/, EventArgs^ args ) { OnUserChange( "OnSelectionChanging", args->ToString() ); }
.NET Framework
Available since 1.1
Available since 1.1
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