How to select toolStripSplitButton using keyboard shortcut?

set the keyPrivew Property of form as true.

on the form keyDown event

        private void mdi_KeyDown(object sender, KeyEventArgs e)
  {
  if (e.Control && e.KeyCode.ToString() == "B")
  {
  toolStripButton1_Click(sender, e);//---call the click event of Toolstripbutton1 if require
  toolStripButton1.Select();//-------select Toolstripbutton1 
  }
  }

it works on ctrl+B

thanks.