C#

private static final java.text.Collator COLLATOR = java.text.Collator.getInstance();

private static final String[] NORM_STRINGS = new String['z' - 'a' + 1];
{
  COLLATOR.setStrength(Collator.PRIMARY);
  for (char b = 'a'; b <= 'z'; b++)
  {
      NORM_STRINGS[b - 'a'] = new String(new char[] { b });
  }
}

private ArrayList arrSwitches;
        public ArrayList SwitchesList
        {
            get { return arrSwitches; }
            set
            {
                arrSwitches = adb.getSwitchList(switchtype);
            }
        }

private void opdrverwTextbox_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == (Keys.Enter) && !string.IsNullOrEmpty(opdrverwTextbox.Text))
            {
                //here is the problem. In debugging if  I select from dropdown
                // with mouse click:  e.KeyData = LButton | MButton | Back
                e.Handled = true;
                 a lot of other code........;
               
            }               
                opdrverwTextbox.Clear();
                opdrverwTextbox.Visible = false;
                opdrverwLabel.Visible = false;
                dataGridView_Update();
            }           
        }

Merry Christmas,