internal void AddMenuItem(FileDialogMenu control, FileDialogMenuItem menuItem, string label)
        {
            Contract.Requires(control != null);
            Contract.Requires(menuItem != null);

            this.FileDialogInternal.AddControlItem(control.Id, menuItem.Id, label);
        }
 internal void AddMenu(FileDialogMenu control, string label)
 {
     Contract.Requires(control != null);
     this.FileDialogInternal.AddMenu(control.Id, label);
 }