Question

我正在尝试将JSON数据从ajax调用传递给我的操作方法 -

Ajax call - 

$.ajax({
         type: "POST",
         url: '/ProjectList/getProjects',
         dataType: "json",
         contentType: "application/json; charset=utf-8",
         data: JSON.stringify(modelData),
         success: function (data) {
                        alert("Testing");
         }
      });

模型 -

EbitModel.cs

public class EbitModel
{
    public string ProgramName { get; set; }
    public string ProjectName { get; set; }
    public string SubprojectName { get; set; }
}

控制器的动作方法 -

ProjectListController.cs


    [HttpPost]
    public ActionResult getProjects(List<EbitModel> modelData)
    {
        return null;
    }

但是我在这个动作方法中的modelData中得到了null。

这里有什么我想念的吗？

编辑 -

ModelData中的JSON数据为 -

[{"ProgramName":"South East","ProjectName":"XYZ","SubprojectName":"LMZ"},{"ProgramName":"South East","ProjectName":"ACB","SubprojectName":"LMZa"}]

Answer 1

你必须将modelData和Json传递给控制器。
请尝试以下代码。

var jsonString = [{"ProgramName":"South East","ProjectName":"XYZ","SubprojectName":"LMZ"},{"ProgramName":"South East","ProjectName":"ACB","SubprojectName":"LMZa"}];
var jsonData = JSON.parse('{"modelData":'+jsonString +'}')

$.ajax({
    type: "POST",
    url: '/ProjectList/getProjects',
    dataType: "json",
     contentType: "application/json; charset=utf-8",
     data: jsonData,
     success: function (data) {
        alert("Testing");
     }
});

Answer 2

创建一个变量来保存模型并将此变量传递给ajax数据

var modelHolder = { "Value": @Model.Value }
$.ajax({
         type: "POST",
         url: '/ProjectList/getProjects',
         dataType: "json",
         contentType: "application/json; charset=utf-8",
         data: modelHolder,
         success: function (data) {
                        alert("Testing");
         }
      });

Answer 3

我找到了一些解决方法 -

var modelData = { "modelData": dt };
$.ajax({
          type: "POST",
          url: '/ProjectList/getProjectsFromEbit',
           dataType: "html",
           contentType: "application/json; charset=utf-8",
           data: JSON.stringify(modelData),
            success: function (data) {

           },
           error: function (data) {

                    }

                });

在控制器中 - 我接受了该字符串并对其进行了反序列化

public ActionResult getProjectsFromEbit(string modelData)
    {
        var systemOutputList = new List<EbitModel>();
        systemOutputList = JsonConvert.DeserializeAnonymousType(modelData, systemOutputList);
        return PartialView("_getProjects",systemOutputList);
    }

将JSON数据传递给action方法

3 个答案: