傳遞複雜JSON對象到MVC 3行動

Question

我收到一些奇怪的結果，而試圖將複雜的JSON對象傳遞給一個動作在MVC 3

的Locations被填充在動作參數模型，但名字和位置不是。

如果我做ko.toJS(testViewModel)，那麼名稱和位置在那裏，但位置是空白的？

我使用knockout.js：

var testViewModel = { 
     Name: ko.observable("Joe Bob"), 
     Locations: ko.observableArray([ 
      { ID: 1, Name: "Salem, OR" }, 
      { ID: 2, Name: "Big Bear Lake, CA" }, 
      { ID: 3, Name: "Big Bear City, CA" } 
     ]), 
     Position: ko.observable("Manager") 
    } 

通過jQuery AJAX發送它：

$.ajax({ 
      url: "/ClaimsAuthority/Home/TestIt", 
      type: "POST", 
      data: ko.toJSON(testViewModel), 
      success: function (data, status, xhr) { 
       //ko.applyBindings(data); 
      } 
     }); 

MVC操作：

<HttpPost()> 
     Public Function TestIt(model As TestModel) As ActionResult 
      Return Json(model) 
     End Function 

型號：

Public Class TestModel 
    Public Property ID As Integer 
    Public Property Name As String 
    Public Property Locations As ICollection(Of LocationModel) 
    Public Property Position As String 
End Class 

Public Class LocationModel 
    Public Property ID As Integer 
    Public Property Name As String 
    Public ReadOnly Property DisplayText As String 
     Get 
      Return String.Format("({0}) {1}", ID, Name) 
     End Get 
    End Property 
End Class 

Answer 1

嘗試在你的AJAX請求內容類型設置爲application/json：

$.ajax({ 
    url: '/ClaimsAuthority/Home/TestIt', 
    type: 'POST', 
    contentType: 'application/json', 
    data: ko.toJSON(testViewModel), 
    success: function (data, status, xhr) { 
     //ko.applyBindings(data); 
    } 
});