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