Question

我是初学者，开发MVC Web应用程序。我尝试将嵌套的Json传递给MVC中的控制器，但是我遇到了传递json文件的问题。

我的模特就是这样;

public  class SurveyViewModels
    {
        public string Question { get; set; }
        public bool IsMultipleChoice { get; set; }
        public bool IsSelectOneMoreThan { get; set; }
        public List<string> Options { get; set; }
    }

    public  class SurveyItems
    {
        public string SurveyTitle { get; set; }
        public List<SurveyViewModels> SurveyViewModel { get; set; }
    }

我的控制器就是这样;

    [HttpPost]
    public JsonResult PostQuestionAndOptions(SurveyItems SurveyItems)
    {

    }

在数组中添加SurveyViewModels类：

        var SurveyViewModels= new Array();        
         $("#getButtonValue").click(function () {
           ......
            var Options = new Array();
            for (i = 1 ; i < counter; i++) {
                Options[i - 1] = $('#textbox' + i).val();
            }
            var Data= {
                "Question": Question,
                "IsMultipleChoice": MultipleChoice,
                "IsSelectOneMoreThan": SelectOneMoreThan,
                "Options": Options
            };
            SurveyViewModels.push(Data);

发布按钮功能：

$("#publishButton").click(function () {
                var Title = $('#Title').val();
                var SendingData = {
                    "SurveyTitle": Title,
                    "SurveyViewModel": SurveyViewModels
                };
                alert(Title);
                alert(SurveyViewModels);
                $.ajax({
                    type: "POST",
                    url: "/Surveys/PostQuestionAndOptions",
                    data:SendingData,
                    success: function (data) {
                        alert();
                    },
                    dataType: "json",
                    traditional: true
                });
            });

但List SurveyViewModel为null。为什么SurveyViewModel的列表不会传递给控制器。

有人可以帮助我吗？

Answer 1

我认为这就是你要找的东西

var SurveyViewModels= new Array();   
  $("#getButtonValue").click(function () {
           ......
            var Options = new Array();
            for (i = 1 ; i < counter; i++) {
                Options[i - 1] = $('#textbox' + i).val();
            }
            var Data= {
                "Question": Question,
                "IsMultipleChoice": MultipleChoice,
                "IsSelectOneMoreThan": SelectOneMoreThan,
                "Options": Options
            };
            SurveyViewModels.push(Data);


 $("#publishButton").click(function () {
                  var Titleobj = {"SurveyTitle": Title }; 

var SurveyViewModelsobj = {"SurveyViewModel":SurveyViewModels}  
                  var SendingData = $.extend({}, Titleobj , SurveyViewModelsobj );
                    console.log(Title);
                    console.log(SurveyViewModels);
                    $.ajax({
                        type: "POST",
                        url: "/Surveys/PostQuestionAndOptions",
                        data:SendingData,
                        success: function (data) {
                            alert();
                        },
                        dataType: "json",
                        traditional: true
                    });
                });

检查所有打开和关闭代码的大括号，如果有帮助，请将答案标记为已接受

如何将嵌套JSON传递给MVC5中的控制器？

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