Very simple method, use JS implementation:
page:
AllowPaging = "true" allowsorting = "true" autogeneratecolumns = "false">
Backstage code:
private void dgUserList_PreRender (object sender, System.EventArgs e) {foreach (DataGridItem item in dgUserList.Controls [0] .Controls) {if (item.ItemType == ListItemType.Header) {CheckBox chkAll = (CheckBox) item.FindControl ( "chkall"); system.text.stringbuilder strscript = new system.text.StringBuilder ("
