or
if (e.CommandName == RadGrid.ExportToCsvCommandName) { GridHeaderItem HeaderItem = (GridHeaderItem)RadGrid1.MasterTableView.GetItems(GridItemType.Header)[0]; HeaderItem.Visible = false; }<script type="text/javascript"> function cellSelecting(sender, args) { var selects = sender._selectedCellsIndexes; var selectedColumn = args.get_column(); var dataItem = args.get_gridDataItem(); var cellName = dataItem.get_itemIndexHierarchical() + "&" + selectedColumn.get_uniqueName(); var output = String.format(cellName); var index = -1; for (var i = selects.length - 1; i >= 0; i--) { if (selects[i] === cellName) { index = i; } } console.log(dataItem); if (index == -1) { selects.push(cellName); } else { selects.splice(index, 1); dataItem._selected = false; } selectedColumn.set_selected(dataItem.get_itemIndexHierarchical()); //sender.set_selected(selects); selectedColumn.set_selected(selects); console.log(sender); console.log(selects); // args.set_cancel(true); //alert(output) }</script>