Hello meetarifmd,

That would visually merge the cells on the client. However keep in mind that:

1)      This setting may be lost over the ajax callbacks of the grid since  $(document).ready is fired only on full page postbacks. You could use the grid’s client side Initialize event instead.

2)      You would have no control over this setting on the server side.

3)      There might be a misalignment between the cells and the headers if you don’t set the colSpan for the header th element as well.

Let me know if you have any questions or concerns.

Best Regards,

Maya Kirova

Developer Support Engineer II

Infragistics, Inc.

http://ko.infragistics.com/support

am using hierarchicaldatagrid.  javascript does it

<script type="text/javascript">
$(document).ready(
function () {
$("table td a[id*='COLUMN_ID']").parent().attr("colspan", 5);
}
);

</script>