AJAX请求错误

我在提交ajax请求时遇到错误。

这是jQuery / ajax

  <script type="text/javascript">
      $(function () {
          $('#BookButton').click(function (event) {
              var form = $('#Form1');
              $.ajax({
                  type: form.attr('method'),
                  url: form.attr('action'),
                  data: $("#BookRoom :input").serialize()
              }).done(function (data) {
                  $('#BookRoom').modal('hide');
                  if (data === ResponseType.Success) {
                      $('#SuccessMsg').text('Meeting Booked');
                      $('#SuccessMessage').modal('show');
                  }
                  else if (data === ResponseType.Reject) {
                      $('#SuccessMsg').text('There are conflicts');
                      $('#SuccessMessage').modal('show');
                  }
                  else if (data === ResponseType.Reject) {
                      // Notify user: It is your fault
                  }
                  else {
                      $('#SuccessMsg').text('Test');
                      $('#SuccessMessage').modal('show');
                  }


                  // Optionally alert the user of success here...


                  setTimeout(function () { $('#SuccessMessage').modal('hide'); }, 3000);
              }).fail(function () {
                  // Optionally alert the user of an error here...
                  alert("Error submitting AJAX request");
              });
              event.preventDefault(); // Prevent the form from submitting via the browser.
          });
      });

C＃摘要

            public enum ReponseType : int
            {
            Success = 0,
            Reject = 1

              }



            if (ITMtgfapts.Items.Count > 0) // If there is more than one item
            {


                Response.AddHeader("Content-type", "application/json");
                Response.ContentType = "application/json";
                Response.Write(JsonConvert.SerializeObject(ReponseType.Reject));
                Response.End();
            }


            else
            {

                //Success
                appointment.RequiredAttendees.Add(roomEmail);



                appointment.Save(SendInvitationsMode.SendToAllAndSaveCopy);
                Response.AddHeader("Content-type", "application/json");
                Response.ContentType = "application/json";
                Response.Write(JsonConvert.SerializeObject(ReponseType.Success));
                Response.End();


            }

值得注意的是，这是一个WebForms应用程序。当我提交表格时，我得到：

  alert("Error submitting AJAX request");

错误信息。C＃仍然执行的方式（例如，它预定会议室）

有任何想法吗？

谢谢

编辑：

提琴手的回应

JSON:

ResponseType=0

生的：

HTTP/1.1 200 OK
Cache-Control: private
Content-Type: application/json; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Tue, 14 Jan 2014 14:58:54 GMT
Content-Length: 36

{"ResponseType":0}{"ResponseType":1}

编辑2：

得到它的工作，所以现在这是响应：

  HTTP/1.1 200 OK
  Cache-Control: private
  Content-Type: application/json; charset=utf-8
  Server: Microsoft-IIS/7.5
  X-AspNet-Version: 4.0.30319
  X-Powered-By: ASP.NET
  Date: Tue, 14 Jan 2014 15:15:28 GMT
  Content-Length: 18

  {"ResponseType":0}

我从catch {}中删除了代码，因为当页面以JSON输出时，它弄乱了并导致被捕获。

现在它总是回来

  else {
                  $('#SuccessMsg').text('Test');
                  $('#SuccessMessage').modal('show');
              }

而不是成功

有想法吗？