Stetic.WidgetDesigner.DeleteSelection C# (CSharp) Method

        public void DeleteSelection()
        {
            if (session != null)
                session.DeleteSelection ();
        }

 void Delete(object obj, EventArgs e)
 {
     Gtk.Editable focus = Focus;
     if (focus != null)
     {
         focus.DeleteSelection();
     }
     else
     {
         WidgetDesigner wd = SteticMain.CurrentDesigner;
         if (wd != null && wd.Selection != null)
         {
             wd.DeleteSelection();
         }
     }
 }