updating partial view in mvc using ajax

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C#

Javascript

MVC

Ext.Net

I am getting uncaught type Error: cannot read property ajax of undefined
Here is my Code:

function test()
{
    $.ajax({
        url: '@Url.Action("drawInputs")',
        data: { QueryName: App.About.getValue() }
    })
    .done(function (result) {
        $('#SomeDiv').html(result);
    });
}

<td>@(Html.X().ComboBox().ID("About").Editable(false)
                                  .ValueField("ID")
                                     .DisplayField("Name")
                                    .Store(Html.X().Store()
                                    .Model(Html.X().Model()
                                    .IDProperty("ID")
                                    .Fields(
                                        new ModelField("ID", ModelFieldType.String) { Mapping = "ID" },
                                        new ModelField("Name", ModelFieldType.String) { Mapping = "Name" }
                                           )
                                         )
                               .Proxy(Html.X().AjaxProxy()
                                        .Url(Url.Action("GetEXTParams"))
                                        .Reader(Html.X().JsonReader().RootProperty("data"))
                                        )
                            )
                                        )
                        .Listeners(li => { li.Select.Handler = "test()"; })
                     )</td>

and I have in the controller action result named "drawInputs" that return partialview