I am using new Umbraco v5, problem I am having is like,

    MySurfaceController

        [ChildActionOnly] PartialViewResult Index()

        ActionResult PartialGrid(string id)

First Umbraco does not allow using int parameter, is that true??

Second I am not able to use ajax get request on PartialGrid, it returns error, Post works fine if i add the hidden Base64String, which is generated in the BeginUmbracoForm, for routing. Ajax get request works ok on index action.