Form post File BUG 解决

 $("#registerMember").click(function () {
        $.ajax({
            url: $("#registrationForm").attr("action"),
            type: "POST",
            enctype: ‘multipart/form-data‘,
            contentType: "application/x-www-form-urlencoded",
            data: $("#registrationForm").serialize(),
            success: function (data) {               //$("#spinnerDiv img").hide();
               //$("#contentDiv input").removeAttr(‘disabled‘);
            }
        });
    });