Upshot映射問題asp.net mvc4

Question

我正在處理ASP.NET MVC 4測試版中的單頁應用程序，它失敗了（我猜）目前的結果是試圖映射我的控制器返回的JSON。

我的項目與需要一些個人信息，一些開放性的問題+答案和一些李克特問題的答案+的文章（同意，不同意等）

這裏是我的模型的外觀：

// Essay contains personal information, questions and related answers 
public class EssayResult { 
    public EssayResult() { 
     if(FinishedAt == null) 
      FinishedAt = DateTime.Now; 

     PersonInfo = new PersonInfo(); 
     LikertAnswers = new List<LikertAnswer>(); 
     OpenAnswers = new List<OpenAnswer>(); 
    } 

    public int EssayResultId {get; set;} 
    public DateTime? FinishedAt {get; set; } 
    public virtual int PersonInfoId {get; set; } 
    public virtual PersonInfo PersonInfo {get; set; } 
    public virtual ICollection<LikertAnswer> LikertAnswers {get; set; } 
    public virtual ICollection<OpenAnswer> OpenAnswers {get; set; } 
} 

// Contains some information about the person who's doing the essay 
public class PersonInfo { 
    public int PersonInfoId {get; set;} 
    [Required] 
    public int Age {get; set; } 
    [Required] 
    public Education Education { 
     get { return (Education) EducationValue; } 
     set { EducationValue = (int) value; } 
    } 
    [Required] 
    public Gender Gender { 
     get { return (Gender) GenderValue; } 
     set { GenderValue = (int) value; } 
    } 
    [Required] 
    public bool RobotExperience {get; set; } 

    // Workaround to get enums mapped 
    public int EducationValue {get; set; } 
    public int GenderValue {get; set; } 
} 

public enum Education { 
    Middelbaar, 
    Mbo, 
    Hbo, 
    Wo 
} 

public enum Gender { 
    Man, 
    Vrouw 
} 

public class LikertQuestion { 
    public int LikertQuestionId {get; set; } 
    [Required] 
    public string Name {get; set; } 
    [Required] 
    public string Question {get; set; } 
} 


public class LikertAnswer { 
    // Primary key and Question-relation 
    public int LikertAnswerId {get; set; } 

    public virtual int LikertQuestionId {get; set; } 
    public virtual LikertQuestion LikertQuestion {get; set; } 
    public virtual int EssayResultId {get; set; } 
    public virtual EssayResult EssayResult {get; set; } 

    // Properties 
    public LikertScale Answer {get; set;} 
} 

public class OpenQuestion { 
    public int OpenQuestionId {get; set; } 
    public string Question {get; set; } 
} 

我控制器似乎返回正確的JSON：

{ 
    "EssayResultId": 0, 
    "FinishedAt": "/Date(1338204633030+0200)/", 
    "LikertQuestionId": 0, 
    "LikertAnswers": [ 
    { 
     "Answer": 0, 
     "EssayResult": null, 
     "EssayResultId": 0, 
     "LikertAnswerId": 0, 
     "LikertQuestion": { 
      "LikertQuestionId": 1, 
      "Name": "PU01", 
      "Question": "Ik denk dat robots nuttig zijn" 
     } 
    }, 
    ... 
    ], 

    "OpenAnswers": [ 
    { 
     "Answer": null, 
     "EssayResult": null, 
     "EssayResultId": 0, 
     "OpenAnswerId": 0, 
     "OpenQuestion": { 
      "OpenQuestionId": 1, 
      "Question": "Wat komt er als eerste in u op bij het horen van het woord 'robot'?" 
     }, 
     "OpenQuestionId": 0 
    }, 
    ... ], 

    "PersonInfo": { 
     "Age": 12, 
     "Education": 0, 
     "EducationValue": 0, 
     "Gender": 0, 
     "GenderValue": 0, 
     "PersonInfoId": 0, 
     "RobotExperience": false 
    }, 
    "PersonInfoId": 0 
} 

一些參考文獻沒有設置，因爲這些對象是由控制器創建的，代替鄰f被拉出DB。

Knockout無法將其映射到一個有效的視圖模型，它不會提示任何錯誤，但當我檢查viewmodel變量與螢火蟲它顯示了一大堆upshot函數等，而不是viewmodel和handfull額外的結果功能。

這是我第一次淘汰賽，結果和SPA項目所以我自upshots有點失去了好好嘗試一下拋出任何錯誤，模型是在服務器端/ DB級正確...

如果我需要提供更多細節讓我知道。 :) 我遵循ToDo-items教程和Steve Sanderson的Delivery Tracker示例，所以我想它必須與我的模型/映射有關。

桑德

更新：我已經刪除了FinishedAt的性能，因爲它顯然是在錯誤的格式，但即使這樣也沒有幫助..仍然不知道爲什麼我的視圖模型將不會呈現， json似乎很好..

Answer 1

Upshot和服務器端在當下不是ASP.NET MVC 4 RTM的一部分。 所以我會等一下 - 爲了未來的決定。