'宣言 Public Property GroupCollapsedChanged As System.EventHandler(Of GridCellRangeEventArgs)
public System.EventHandler<GridCellRangeEventArgs> GroupCollapsedChanged {get; set;}
'宣言 Public Property GroupCollapsedChanged As System.EventHandler(Of GridCellRangeEventArgs)
public System.EventHandler<GridCellRangeEventArgs> GroupCollapsedChanged {get; set;}