/// <summary>
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void treeView_Click(object sender, EventArgs e)
        {
            var p         = DatatreeView.PointToClient(MousePosition);
            var mTreeNode = DatatreeView.GetNodeAt(p);

            if (mTreeNode != null)
            {
                DatatreeView.SelectedNode = mTreeNode;
            }
        }
 /// <summary>
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void listView_ColumnWidthChanged(object sender, ColumnWidthChangedEventArgs e)
 {
     DatatreeView.Focus();
     DatatreeView.Invalidate();
 }
 /// <summary>
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void listView_ColumnClick(object sender, ColumnClickEventArgs e)
 {
     DatatreeView.Focus();
 }