'宣言 Public Delegate Sub GridHierarchicalBehaviorEvents.GroupedColumnAddedHandler( _ ByVal sender As Object, _ ByVal e As GridHierarchicalBehaviorEvents.GroupedColumnAddedEventArgs _ )
public delegate void GridHierarchicalBehaviorEvents.GroupedColumnAddedHandler( object sender, GridHierarchicalBehaviorEvents.GroupedColumnAddedEventArgs e )