hey
try this.
function CheckAll(checkboxId, index) {
var grid = document.getElementById('GridView1');
if (grid.rows.length > 0) {
for (i = 1; i < grid.rows.length; i++) {
if (index > 0) {
cell = grid.rows[i].cells[index];
for (j = 0; j < cell.childNodes.length; j++) {
if (cell.childNodes[j].type == "checkbox") {
cell.childNodes[j].checked = checkboxId.checked;
}
}
}
}
}
}
//Calling of function
<HeaderTemplate>
<asp:CheckBox ID="chkHeader" Text="Check" runat="server" ToolTip="Check All" onclick="return CheckAll(chkHeader,columnNo);" />
</HeaderTemplate>
This works for me
try and give replay
Best Luck