private void HeaderView_KeyDown(object sender, KeyEventArgs e)
 {
     try
     {
         if (e.KeyCode == Keys.Down)
         {
             if (HeaderView.IsFilterRow(RowHandle))
             {
                 HeaderView.ShowFilterEditor(Column);
             }
         }
         if (e.Modifiers == Keys.Control && e.KeyCode == Keys.N)
         {
             btnNew_ItemClick(null, null);
         }
         if (e.KeyCode == Keys.Delete)
         {
             btnDelete_ItemClick(null, null);
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }