protected void Grid_ToolbarItemClick(object source, ASPxGridToolbarItemClickEventArgs e) { ASPxGridView grid = (ASPxGridView)source; switch (e.Item.Name) { case "CustomExportToXLS": grid.ExportXlsToResponse(new DevExpress.XtraPrinting.XlsExportOptionsEx { ExportType = ExportType.WYSIWYG }); break; case "CustomExportToXLSX": grid.ExportXlsxToResponse(new DevExpress.XtraPrinting.XlsxExportOptionsEx { ExportType = ExportType.WYSIWYG }); break; default: break; } }