JQuery AJAX parameter not passed MVC

Question

I am a little fixated on the fact that probably the usual situation, but can not find many solutions.

I pass one int parameter to the MVC controller method, awaiting a Json response. The problem is that the parameter, being filled on the client side, is not recognized on the server and is interpreted as zero.

Here is the code:

function getBatches(p) {
$.ajax({
    type: "GET",
    data: "{'ProjectID': " + p + "}",
    url: "/Home/Batches",
    success: function(msg) {
        populateBatches(msg);
    }
});

}

The value for p is an integer. On the server side, the code is as follows:

[AcceptVerbs(HttpVerbs.Get)]
public JsonResult Batches(int ProjectID)
{
    return Json(TimeHelper.GetBatchesForProject(ProjectID));
}

I tried changing it a bit so that the server side int argument was null (i.e. int? ProjectID), but again, that doesn't help. The problem is the translation. Ideas?

Answer 1

data Javascript:

$.ajax({
    type: "GET",
    data: {ProjectID: p},
    url: "/Home/Batches",
    success: function(msg) {
        populateBatches(msg);
    }
});