private void advBandedGridView1_FocusedColumnChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedColumnChangedEventArgs e)
{
AdvBandedGridView view = sender as AdvBandedGridView;
view.InvalidateColumnHeader(e.PrevFocusedColumn);
view.InvalidateColumnHeader(e.FocusedColumn);
}
