void gv_CustomRowCellEditForEditing(object sender, CustomRowCellEditEventArgs e) { xCol xc; if (ListCols.TryGetValue(e.Column.AbsoluteIndex, out xc)) { ((BindingSource)xc.rle.DataSource).DataMember = string.Empty; ((BindingSource)xc.rle.DataSource).DataSource = xc.GetSrcHandler(eColl.GetParent()); } }