Can I return custom error from JsonResult to jQuery ajax error method?

Question

How can I pass custom error information from an ASP.NET MVC3 JsonResult method to the error (or success or complete, if n

Answer 1

My MVC project wasn't returning any error message (custom or otherwise). I found that this worked well for me:

$.ajax({
        url: '/SomePath/Create',
        data: JSON.stringify(salesmain),
        type: 'POST',
        contentType: 'application/json;',
        dataType: 'json',
        success: function (result) {

            alert("start JSON");
            if (result.Success == "1") {
                window.location.href = "/SomePath/index";
            }
            else {
                alert(result.ex);
            }

            alert("end JSON");
        },
        error: function (xhr) {

            alert(xhr.responseText);

        }
        //error: AjaxFailed
    });

Showing the xhr.responseText resulted in a very detailed HTML formatted alert message.