返回對象名爲MVC的Json結果

Question

當控制器返回json結果時，對象名似乎缺失，我通常不介意，但flexbox jquery插件需要特定格式的json結果。

Flexcombobox預期格式

{"results":[ 
    {"id":"1","name":"Ant"}, 
    {"id":"2","name":"Bear"}, 
    {"id":"3","name":"Cat"}, 
    {"id":"4","name":"Dog"}, 
    {"id":"5","name":"Elephant"}, 
    {"id":"6","name":"Fox"}, 
    {"id":"7","name":"Guinea Pig"}, 
    {"id":"8","name":"Horse"}, 
    {"id":"9","name":"Iguana"}, 
    {"id":"10","name":"Jaguar"} 
]} 

類

Public Class FlexboxResult 

    Private _id As String 
    Public Property Id() As String 
     Get 
      Return _id 
     End Get 
     Set(ByVal value As String) 
      _id = value 
     End Set 
    End Property 

    Private _name As String 
    Public Property Name() As String 
     Get 
      Return _name 
     End Get 
     Set(ByVal value As String) 
      _name = value 
     End Set 
    End Property 

End Class 

控制器代碼

Function PartYearsList() As JsonResult 
      Dim yearSelectList As List(Of FlexboxResult) = New List(Of FlexboxResult) 

      For index As Integer = DateTime.Now.Year To 1955 Step -1 
       yearSelectList.Add(New FlexboxResult() With {.Id = index, .Name = index}) 
      Next 

      Return Me.Json(yearSelectList.ToArray(), JsonRequestBehavior.AllowGet) 
End Function 

JSON結果返回（縮短）

[{"Id":"2010","Name":"2010"},{"Id":"2009","Name":"2009"},{"Id":"2008","Name":"2008"}] 

期望的結果（縮短）

{"results": [{"Id":"2010","Name":"2010"},{"Id":"2009","Name":"2009"},{"Id":"2008","Name":"2008"}]} 

Flexcombobox文檔 http://www.fairwaytech.com/flexbox.aspx

Answer 1

在C＃中，可以使用一個匿名對象來調整JSON結構在出路：

// The ToArray() probably isn't necessary. Collections like List<T> are treated 
// as JavaScript arrays when JavaScriptSerializer turns them into JSON. 
return Json(new { results = yearSelectList}); 

更新：

從演，這是同樣的事情VB語法：

Return Json(New With {Key .results = yearSelectList}, JsonRequestBehavior.AllowGet) 

Answer 2

爲了讓輸出JSON的細粒度控制，你可以嘗試聲明等的數據合同：

[DataContract] 
public class MyResultListContract 
{ 
    [DataMember] 
    public List<MyResultContract> results { get; set; } 
} 

[DataContract] 
public class MyResultContract 
{ 
    [DataMember] 
    public string Id {get; set;} 
    [DataMember] 
    public string Name {get; set;} 
} 

，然後使用DataContractJsonSerializer：

var myResults = ... 
var serialiser = new DataContractJsonSerializer(typeof(MyResultListContract)); 
var jsonString = serialiser.WriteAsString(myResults);