I have a Ultrawebgrid in a RowEditTemplate of another Ultrawebgrid that I need to fill with data from a SQL database using a stored procedure with a parameter being the selected row ID.

I believe it is a timing issue, but I used a hidden input that is populated with the SelectedRowID in the parent grid's BeforeTemplateOpen event.  I think at that time the SQLDataSource is already ran the procedure with a null value.  Am I right in my thinking, and if so, how do I make sure that the SQLDataSource gets it's parameter filled before requesting the data and filling the child grid?

Here's code of the setting of the value of the hidden input:

var hdnitemid = document.getElementById(gridName + '_ctl00_hdn_itemid');

hdnitemid.value = CheckForNull(row.getCell(0).getValue(), '');

And here's my code for the datasource bound to the hidden input field with a ControlParameter:

 <asp:SqlDataSource ID="sds_links" runat="server" ConnectionString="<%$ ConnectionStrings:MRVConnectionString %>" SelectCommand="SELECT * FROM [tbl_links] WHERE ([link_item_id] = @link_item_id)">

<SelectParameters>

<asp:ControlParameter ControlID="lbl_itemid" Name="link_item_id" PropertyName="Text" Type="Int32" />

</SelectParameters>

</asp:SqlDataSource>

 Thanks in advance for any help.

Will