//void Control_ControlAdded(object sender, ControlEventArgs e)
        //{
        //    e.Control.ControlAdded += new ControlEventHandler(Control_ControlAdded);

        //    e.Control.PreviewKeyDown += new PreviewKeyDownEventHandler(Control_PreviewKeyDown);

        //}

        // this event has to be consumed by all checkboxes and the DropDown.
        // The TableLayoutPanels and GroupBoxes don't seem to raise this event
        void Control_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
        {
            if (e.KeyCode != Keys.Space)
            {
                this.toolStripDropDownSettings.Hide();
                String keyToSend = new KeysConverter().ConvertToString(e.KeyCode);
                if (!e.Shift)
                {
                    keyToSend = keyToSend.ToLowerInvariant();
                }
                this.comboBoxSearch.Focus();
                //SendKeys.Send("K");
            }

            System.Diagnostics.Debug.WriteLine("in preview");


            //this.toolStripDropDownSettings.Close();

            //String pressedKey = e.KeyCode.ToString();


            ////if (!e.Shift)
            ////{
            ////    pressedKey = pressedKey.ToLower();
            ////}
            //comboBoxSearch.SelectedText = pressedKey;


            //comboBoxSearch.SelectionStart = comboBoxSearch.Text.Length;
        }