Populating MultiCombo in Page_Load : "This operation requires an AjaxRequest"

[wagger]

Hey!

First; I have browsed numerous posts on this forum that relates to my question but haven't really figured out what to do here.

So, I have a MultiCombo that I want to populate in the Page_Load of that page.

<ext:MultiCombo ID="MultiCombo_allowedLoginChannels" runat="server" SelectionMode="All" FieldLabel="Some text" Width="175">
                <Items></Items>
            </ext:MultiCombo>

and my code for populating the MultiCombo:

Assembly[] asms = AppDomain.CurrentDomain.GetAssemblies();
                foreach (Assembly assembly in asms)
                {
                    Type[] typeArray = assembly.GetTypes();
                    foreach (Type type in typeArray)
                    {
                        if (type.IsSubclassOf(typeof(SomeVeryCoolType)))
                        {
                            MultiCombo_allowedLoginChannels.AddItem(type.Name, type);
                        }
                    }
                }

When I hit

MultiCombo_allowedLoginChannels.AddItem(type.Name, type);

I get the error:
"This operation requires an AjaxRequest"

So I started to surf, and read some posts (here, here for example) but to no avail.

So my question is obvious:

How should you populate a MultiCombo? Can I do it in Page_load? Im obviously missing something =)

------ UPDATE -----------

So I figured out one solution that sort of works. I create a Store in markup, then in the Page_Load method I do this:

List<object> asd = new List<object>();
            

            Assembly[] asms = AppDomain.CurrentDomain.GetAssemblies();
            foreach (Assembly assembly in asms)
            {
                Type[] typeArray = assembly.GetTypes();
                foreach (Type type in typeArray)
                {
                    if (type.IsSubclassOf(typeof(MyNiceType)))
                    {
                        asd.Add(new object[] { type.ToString(), type.Name, type });
                    }
                }
            }

            Store_LoginChannels.DataSource = asd;
            Store_LoginChannels.DataBind();

The MultiCombo looks like this:

<ext:MultiCombo ID="MultiCombo_allowedLoginChannels" runat="server" SelectionMode="All" FieldLabel="Inloggning via" Width="175" StoreID="Store_LoginChannels"
                DisplayField="typeName"
                ValueField="typeObject"
                EmptyText="Välj">
            </ext:MultiCombo>

and the Store:

<ext:Store ID="Store_LoginChannels" runat="server">
        <Reader>
            <ext:ArrayReader>
                <Fields>
                    <ext:RecordField Name="typeStringId" />
                    <ext:RecordField Name="typeName" />
                    <ext:RecordField Name="typeObject" />
                </Fields>
            </ext:ArrayReader>
        </Reader>
    </ext:Store>

The problem now is that it doesnt work like I want it to, ie I cannot select anything from the list. It works fine if I hardcode in <Items> in there, but using the Store I cant get it to work just yet...

Someone can clse this thread =)

--- Update 2 ---

The last issue, that I cannot select anything from the MultiComb, is explained here:
http://forums.ext.net/showthread.php...-items-in-list