error when type in RadComboBox

[samaneh]

Hi all

I use a RadComboBox which contans a RadGrid in itemTemplate,when user type a word in ComboBox, this error raised:
 "Script control 'gv_supplier' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors(). Parameter name: scriptControl".

how can I fix it?

<telerik:RadComboBox ID="RadComboBox1" runat="server" DropDownWidth="300px" EmptyMessage="select..."
            EnableLoadOnDemand="True" HighlightTemplatedItems="True" ItemRequestTimeout="10" >
            <Items>
                <telerik:radcomboboxitem selected="true" />
            </Items>
            <ItemTemplate>
                <telerik:RadGrid ID="gv_supplier" runat="server" GridLines="None" Skin="Vista" Width="100%"
                    AllowSorting="True" AutoGenerateColumns="False" ShowFooter="True">
                    <AlternatingItemStyle BackColor="#a7bcdb" />
                    <MasterTableView AllowSorting="True" DataKeyNames="supplier_kind_id" Dir="RTL" Font-Names="Tahoma"
                        HeaderStyle-HorizontalAlign="Center" HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center"
                         ClientDataKeyNames="supplier_kind_id,supplier_kind_code" >
                        <CommandItemSettings ShowAddNewRecordButton="false" />
                        <Columns>
                            <telerik:GridTemplateColumn UniqueName="col_row_number" HeaderText="row">
                                <ItemTemplate>
                                    <asp:Label ID="numberLabel" runat="server" Width="30px" />
                                </ItemTemplate>
                                <HeaderStyle Width="30px" />
                            </telerik:GridTemplateColumn>
                            <telerik:GridTemplateColumn HeaderText="supplier_kind_id" UniqueName="supplier_kind_id"
                                Visible="false">
                                <ItemTemplate>
                                    <asp:Label ID="lbl_supplier_kind_id" runat="server" Text='<%# Bind("supplier_kind_id") %>' />
                                </ItemTemplate>
                                <HeaderStyle Width="50px" />
                                <ItemStyle Width="50px" />
                            </telerik:GridTemplateColumn>
                            <telerik:GridBoundColumn DataField="supplier_kind_code" EmptyDataText="----" HeaderText="code"
                                ReadOnly="True" Resizable="true" UniqueName="supplier_kind_code">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="supplier_kind_name" EmptyDataText="----" HeaderText="name"
                                Resizable="true" UniqueName="supplier_kind_name">
                            </telerik:GridBoundColumn>
                        </Columns>
                        <NoRecordsTemplate>
                            nothing to displaye.
                        </NoRecordsTemplate>
                        <RowIndicatorColumn>
                            <HeaderStyle Width="20px"></HeaderStyle>
                        </RowIndicatorColumn>
                        <ItemStyle HorizontalAlign="Center" />
                        <HeaderStyle HorizontalAlign="Center" />
                    </MasterTableView>
                    <ClientSettings EnableRowHoverStyle="true" EnablePostBackOnRowClick="true">
                        <Resizing AllowColumnResize="True" ResizeGridOnColumnResize="false" />
                        <Selecting AllowRowSelect="True" />
                        <ClientEvents OnRowSelected="onRowSelected" />
                    </ClientSettings>
                </telerik:RadGrid>
            </ItemTemplate>
            <FooterTemplate>

            </FooterTemplate>
        </telerik:RadComboBox>

<telerik:radcodeblock id="codeBlock" runat="server">
    <script type="text/javascript">

       function onRowSelected(sender, args)
        {
            var selectedText = args.getDataKeyValue("supplier_kind_code");
            var selectedValue = args.getDataKeyValue("supplier_kind_id");

            var combo = $find("RadComboBox1");

            setTimeout(
                        function()
                        {
                            combo.set_text(selectedText);
                            combo.set_value(selectedValue);
                        }
                       , 50);

        }


    </script>
</telerik:radcodeblock>

[Shinu]

Hello Samaneh,

I tried to the same and that worked fine at my end.

Here I have found a forum which discussed similar scenario. take look at this.
RADGRID inside a RADCOMBOBOX

Hole it helps.
Thanks,
Shinu.