private void gridView1_DoubleClick(object sender, EventArgs e)
{
int[] selectedrows = gridView1.GetSelectedRows();
if (selectedrows.Length > 0)
{
int grouplevel = gridView1.GetRowLevel((int)selectedrows.GetValue(0));
if (grouplevel >= gridView1.GroupCount)
{
StartTableViewer();
}
}
}