Question

I have implemented the solution on this link to my project to have jsonp capabilities:
http://blogorama.nerdworks.in/entry-EnablingJSONPcallsonASPNETMVC.aspx

It is working like a charm on first calls but on second call it is not responding?

Do you have any idea?

My json call is:

$.ajax({
    type: "GET",
    url: '../../askjson',
    data: { name_startsWith: name },
    cache: false,
    dataType: "jsonp",
    success: function (data) { }
});

and controller is:

[HttpGet]
[JsonpFilter]
public JsonResult askjson(string name_startsWith)
{

    // do stuff

    return Json(resultView, JsonRequestBehavior.AllowGet);
}

Answer 1

Thank you guys.

I’ve traced the error and it was a 400 indicating that: request is over the allowed setting defined at MaxQueryStringLength.

So I’ve added the following to my web.config under <system.web>

 <system.web>
    <httpRuntime maxUrlLength="10999" maxQueryStringLength="2097151" />

I also did same to <system.webServer> by:

  <system.webServer>
    <security>
      <requestFiltering>
        <requestLimits maxUrl="10999" maxQueryString="2097151"  />

my problem has gone!