$("#myForm").submit(function (event) {
            var data = $('#myForm').serialize();
                event.preventDefault();
            // check if the input is valid
            if (!$(this).valid()) return false
                $.ajax({
                    url: '@Url.Action("MyAction", "Home")',
                    type: 'POST',
                    cache: false,
                    data: data,
                    success: function (result) {
                        }
                    }
                });
        });

public ActionResult myAction(myModel model,HttpPostedFileBase File)
                             {
                             }