alert box issue in custom lightbox

Scheduler ASP.NET MVC
#1

Hi,
I am trying to show alert message box when i got some error in custom lightbox but it’s appear on the buttom of the form instread of middle and the gray light box also coming after form. i dont know why it’s coming gray color after my form?

Thanks

Myalertbox.png696×730 10.7 KB

#2

attached some my code.

$(’#Savebtn’).on(‘click’, function () {
$.ajax({
url: ‘/Test/TestSave’,
type: ‘post’,
dataType: ‘json’,
success: function (response) {
if (!response.success) {

                dhtmlx.alert({
                    title: "Close",
                    text: "Error found while Saving.",
                    type: "alert-error"
                });

            }
            else {


            }
        }
    });
});