Ajax 如何提交集合到mvc后台

1，前端请求如下

   var apply = { CompanyName: $("[name='corpName']").val(), ContactUser: $("[name='contName']").val(), Address: $("[name='address']").val(), Mobile: $("[name='phone']").val(), MainProducts: $("[name='goods']").val(), MainProducts: $("[name='goods']").val(), Remark: $("[name='mark']").val(), IsMember: $("[name='Meber']:checked").val() };
             var applyDetail = [];
             $('.Info').each(function (index, item) {
                 //参会代表
                 var DelegateName = $(item).find("[name='Name']").val();
                 //性别
                 var Sex = $(item).find("[name='Sex']").val();
                 //职位
                 var Post = $(item).find("[name='Position']").val();
                 //手机
                 var Mobile = $(item).find("[name='Phone']").val();
                 //邮箱
                 var EMail = $(item).find("[name='Email']").val();
                 //会场
                 var SiteType = $(item).find("[name='SiteType']").val();
                 var detial = { DelegateName: DelegateName, Sex: Sex, Post: Post, Mobile: Mobile, EMail: EMail, SiteType: SiteType };

                 applyDetail.push(detial);
             });
             var postData = { applyModel: apply, applyDetail: applyDetail };
             $.ajax({
                 url: '/ActivityBusiness/Apply_From_Json?ApplyNo=@ViewBag.ApplyNo&SpeciaNo=@ViewBag.SpeciaNo',
                 data: JSON.stringify(postData),
                 dataType: 'json',
                 contentType: 'application/json',
                 type: "POST",
                 // traditional: true,
                 success: function (res) {
                     if (res.Success) {
                         tipDialog(res.Message, 3, res.Code);
                         top.frames[tabiframeId()].windowload();
                         closeDialog();
                     }
                     else {
                         tipDialog(res.Message, 3, -1);
                     }

                 }
             });

2，注意事项

要设置  contentType: 'application/json'

3,效果  如下图

4,总结