Hi haman2x

Can you ensure that you change the ClientIDMode of the the drop down list that is bound to the sql datasource (ddlUserID) to "Static" e.g.

<asp:DropDownList ID="ddlUserID" runat="server"
                        DataSourceID="sqlDatasource" DataTextField="textField"
                        DataValueField="valueField" ClientIDMode="Static">
</asp:DropDownList>

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