"Telerik is not defined" when trying to create RadComboBoxItem in javascript

[Alexander]

I am trying to add elements to RadComboBox in "success" ajax request method.
However, I am getting "Telerik is not defined" error when I try to create the item.

How to achieve my goal?

$.ajax({
            type: 'POST',
            url: '../WebServices/GlobalEntityHelper.svc/GetEntityData',
            data: JSON.stringify({ request: JSON.stringify(dataToSend) }),
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            success: function (result, status) {
                srcWindow.GlobalEntityRadCombobox.set_visible(result.d.Visible);
                if (srcWindow.GlobalEntityRadCombobox.get_visible()) {
                    var entityItems = srcWindow.GlobalEntityRadCombobox.get_items();
                    entityItems.clear();
                    srcWindow.GlobalEntityRadCombobox.trackChanges();
                    for (var i = 0; i < result.d.DataSource.length; i++)
                    {
                        var entityItem = new Telerik.Web.UI.RadComboBoxItem();
                        entityItem.set_text(result.d.DataSource[i].Key);
                        entityItem.set_value(result.d.DataSource[i].Value);
                        entityItems.add(entityItem);
                    }
                    srcWindow.GlobalEntityRadCombobox.commitChanges();
                    ddlHilightOption(srcWindow.GlobalEntityRadCombobox, '', result.d.EntityValue);
                    jQuery.data(srcWindow.GlobalEntityRadCombobox, 'filter-datamember', result.d.EntityFilterDataMember);
                    srcWindow.GlobalEntityRadCombobox.prop('entityTypeConst', result.d.EntityTypeConst);
                }
            },
            error: function (jqXHR, textStatus, errorThrown) {
            }

I have tried a lot of stuff, but no luck and I am out of ideas now :(

This happens in MASTER PAGE. On usual pages everything is ok.
And yes, I have read this: http://www.telerik.com/help/aspnet-ajax/introduction-troubleshooting.html
And I do not have outputcache directive and I do have webresource reference in my web.config

[Alexander]

I have fixed the error by adding scripts to radscriptmanager:

<asp:RadScriptManager ID="rsmDefault" OnAsyncPostBackError="rsmDefault_AsyncPostBackError"
    EnableScriptGlobalization="true" LoadScriptsBeforeUI="true" EnablePartialRendering="true"
    runat="server">
    <Scripts>
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryPlugins.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Navigation.NavigationScripts.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.ComboBox.RadComboBoxScripts.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.TouchScrollExtender.js" />
    </Scripts>
</asp:RadScriptManager>

new Telerik.Web.UI.RadComboBoxItem is not undefined anymore.
But how to fill RadComboBox with ItemTemplate on client-side? We are using 2011 version now and do not have client-side template support here yet!

[Boyan Dimitrov]

Hello,

Thank you for contacting Telerik Support.

Your observations are absolutely correct and our RadComboBox client-side template support is included in  Q2 2012. 
I would suggest updating your RadControls to the newest official version. It will give you the ability to take advantage of all client-side templates features and functionalities that they offer. 
Please review our RadComboBox client-side templates help article and online demo that demonstrates their capabilities.

Hope that this will be helpful.

Regards,
Boyan Dimitrov
the Telerik team

[Jesper Matthiesen]

Sorry, but we cannot upgrade for free anymore, it's expired. We gonna keep using version 2011 for now.

So the question is just

how to add elements to the OLD-FASHIONED :) combobox with itemtemplate (to be more precise - it contains checkboxes), using javascript? I am sure it's possible to do, maybe it's just quite verbose... Please, assist.

[Alexander]

All in all, we will write own control to handle it easily.

[Boyan Dimitrov]

Hello,

I am afraid that RadComboBox client-side templates are not supported scenario with RadControls 2011 version. Since it was a very requested feature, we have included it in RadControls Q2 2012 version. Here you may find all available client-side functionalities that come out of the box with our RadComboBox control. 

Regards,
Boyan Dimitrov
the Telerik team