ISelectionService::SelectionChanging Event

 

Occurs when the current selection is about to change.

Namespace:   System.ComponentModel.Design
Assembly:  System (in System.dll)

event EventHandler^ SelectionChanging {
	void add(EventHandler^ value);
	void remove(EventHandler^ value);
}

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
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