ASP MVC 3 json的复杂对象不能初始化属性 [英] Asp MVC 3 json complex object not initialize properties

问题描述

我旁边JS code，我呼叫控制器方法SaveSettings：

I have next JS code where I call controller method SaveSettings:

 function SaveSettings() {
        // get json object from knockoutjs object 
        var data = ko.toJSON(viewModel);
        var params = JSON.stringify(data);
        $.ajax({
            url: '/MyAjax/SaveSettings/',
            type: "POST",
            data: JSON.stringify(data),
            dataType: "JSON",
            contentType: "application/json; charset=UTF-8",
            success: function (result) {
                alert('ok');
            }
        });
    }

JSON数据有下一个格式，发送到控制器：

JSON Data have next format and sending to controller:

    {
"Name":"xcvxcvxcv",
"GeneralSetting":
{
    "Data1":{"IsSync":true,"Value":0},
    "Data2":{"IsSync":false,"Value":0},
    "PasswordLenght":{"IsSync":false,"Value":7},
    "PasswordMessage":{"IsSync":false,"Value":null},
    "DiscoverSerialPort":{"IsSync":false,"Value":true}
},
"MailSettings":
{
    "IsEnabled":{"IsSync":false,"Value":false},
    "ServerAddress":{"IsSync":false,"Value":null},
    "PortNumber":{"IsSync":false,"Value":0},
    "UserName":{"IsSync":false,"Value":null},
    "Password":{"IsSync":false,"Value":null},
    "IsSecureNetwork":{"IsSync":false,"Value":false},
    "PollFrequency":{"IsSync":false,"Value":0},
    "AdminFromEmail":{"IsSync":false,"Value":null},
    "AdminEmail":{"IsSync":false,"Value":null},
    "ReplyToEmail":{"IsSync":false,"Value":null},
    "BCCEmail":{"IsSync":false,"Value":null},
    "AuthenticationMethod":{"IsSync":false,"Value":0}
}
}

我控制器的方法如下：

my controller method look like:

.....
     [HttpPost]
        public JsonResult SaveSettings(GlobalData data)
        {
            return Json(false.ToString(), JsonRequestBehavior.AllowGet);
        }

.....
public class GlobalData
{
    public string Name { get; set; }
    public GeneralSetting GeneralSetting { get; set; }
    public MailSetting MailSettings { get; set; }
}

public class MailSetting
{
    public SelectedProperty IsEnabled { get; set; }
    public SelectedProperty ServerAddress { get; set; }
    public SelectedProperty PortNumber { get; set; }
    public SelectedProperty UserName { get; set; }
    public SelectedProperty Password { get; set; }
    public SelectedProperty IsSecureNetwork { get; set; }
    public SelectedProperty PollFrequency { get; set; }
    public SelectedProperty AdminFromEmail { get; set; }
    public SelectedProperty AdminEmail { get; set; }
    public SelectedProperty ReplyToEmail { get; set; }
    public SelectedProperty BCCEmail { get; set; }
    public SelectedProperty AuthenticationMethod { get; set; }
}

public class GeneralSetting
{
    public SelectedProperty ScreenTimeout { get; set; }
    public SelectedProperty AdminScreenTimeout { get; set; }

    public SelectedProperty PasswordLenght { get; set; }
    public SelectedProperty PasswordMessage { get; set; }
    public SelectedProperty DiscoverSerialPort { get; set; }
}

public class SelectedProperty
{
    public bool IsSync { get; set; }
    public object Value { get; set; }
}

JSON对象，我的全球国际一流的具有相同的结构。（像他们）

JSON object and my GlobalData class have the same structure.(look like they have)

但随后方法SaveSettings开始工作全球国际变量包含在全球国际类中定义的所有属性NULL。
为什么这是发生了什么？是我的阶级结构不正确的内部MVC映射？

But then method SaveSettings start working GlobalData variable contain NULL in all properties that define in GlobalData class. Why this is happens ? Is my class structure incorrect for internal MVC mapping ?

推荐答案

您的JSON序列化您的视图模型两次：一次KO的的toJSON 方法，一旦与本地 JSON.stringify 方法。一个是足够了：

You are JSON serializing your view model twice: once with ko's toJSON method and once with the native JSON.stringify method. One is sufficient:

function SaveSettings() {
    var data = ko.toJSON(viewModel);
    $.ajax({
        url: '/MyAjax/SaveSettings/',
        type: 'POST',
        data: data,
        contentType: 'application/json; charset=UTF-8',
        success: function (result) {
            alert('ok');
        }
    });
}

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