private void fnAllToolstripClicks(object sender, _
     ToolStripItemClickedEventArgs e)
        {
          switch (this.toolStrip1.Items.IndexOf(e.ClickedItem))
            {
                case 0:
                    MessageBox.Show("0");
                    break;
                case 1:
                    MessageBox.Show("1");
                    break;
                case 2:
                    MessageBox.Show("2");
                    break;
            }
        }