为什么要在我的自定义错误消息中添加“无效的JSON”

Question

Invalid JSON:

Error 1 : Non-MDX format found.     

Why I am getting the Invalid JSON with my custom error message.

My code is given bellow:

$('#btnCreateView').click(function (e) {
    e.preventDefault();
    $.ajax({

        type: "POST",
        url: '@Url.Action("Create", "Mdx")',
        data: $('form').serialize(),
        dataType: "json",

        success: function (result) {
            alert("View Created Successfuly");
            window.location = result.link;

        },
        error: function (jqXhr, textStatus, errorThrown) {
            $('#ErrorMessageField').html(errorThrown);
        }

    });
})

Answer 1

In your controller action you seem to be returning a partial view:

return PartialView("Fail");

but in your AJAX request you inidicated

dataType: "json",

Obviously this is inconsistent. When jQuery attempts to parse the string returned from your controller action back into javascript object it fails because you are not sending JSON, you are sending partial HTML.