I'm trying to implement cut, copy, paste, delete, and select all from an MDI menu. I've done this for all but the Delete menu:

if(this.ActiveMdiChild.ActiveControl is TextBox || this.ActiveMdiChild.ActiveControl is RichTextBox)
{
     if(((TextBoxBase)this.ActiveMdiChild.ActiveControl).SelectionLength > 0)
     {
          ((TextBoxBase)this.ActiveMdiChild.ActiveControl).Paste();
     }
}

Is there a better way? And second, how would I implement the Delete?

TIA

Richard