Grid FilterTemplate error

[Karl Wilkens]

Hi, I am trying your demo code found here http://demos.telerik.com/aspnet-ajax/grid/examples/programming/filtertemplate/defaultcs.aspx
and used it as a starting point to add a RadComboBox of a column in my grid as shown here. The boldfaced line below throws an error in the browser - Compiler Error Message: BC30108: 'GridItem' is a type and cannot be used as an expression.

here is the code - any thoughts or help greatly appreciated.

<telerik:GridBoundColumn DataField="Difficulty" HeaderText="Difficulty" UniqueName="Difficulty">
                               <FilterTemplate>
                         <telerik:RadComboBox ID="rcbDifficulty" runat="server" OnClientSelectedIndexChanged="difficulty_changed" width="50px">
                         <Items>
                         <telerik:RadComboBoxItem Text="Beginner" value="Beginner"/>
                         <telerik:RadComboBoxItem Text="Intermediate" value="Intermediate"/>
                         <telerik:RadComboBoxItem Text="Advanced" value="Advanced"/>
                         </Items>
                         </telerik:RadComboBox>
                          <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">

                                <script type="text/javascript">
                                    function difficulty_changed(sender, args) {
                                        var tableView = $find("<%# ((GridItem)Container).OwnerTableView.ClientID %>");
                                        tableView.filter("Difficulty", args.get_item().get_value(), "EqualTo");

                                    }
                                </script>

                            </telerik:RadScriptBlock>
                         </FilterTemplate>
                        </telerik:GridBoundColumn>

[Princy]

Hello Karl,

I have found one forum which discusses the similar issue. Please go through it and see if it helps.
Grid filtering

Thanks,
Princy.