MVC3 ModelState在HttpPost上無效

我在創建HttpGet頁面時模型有效，但在HttpPost上無效（某些屬性爲null）時出現問題。MVC3 ModelState在HttpPost上無效

這裏是我的電話打開頁面：

  var quote = new Quote 
      { 
       Agency = assignedAgency, 
       Insured = insured, 
       RiskAddress = insured.Address 
      }; 
      db.Quotes.Add(quote); 
      db.SaveChanges(); 

      return RedirectToAction("Edit", "Quote", quote.QuoteID);

而且HTTPGET的ActionResult - 在這一點上，該模型是有效的。被保險人和代理人的資產已填充，並且其各自的地址屬性也已填充。

[HttpGet] 
    public ActionResult Edit(int quoteID) 
    { 
     var model = db.Quotes.Find(quoteID); 

     return View(model); 
    }

而且HTTPPORT的ActionResult - 在這種方法的進入，被保險人，代理銷售和它們各自的地址屬性爲null，造成無效模式狀態。

[HttpPost] 
    public ActionResult Edit(Quote model) 
    { 
     if (ModelState.IsValid) 
     { 
      if (model.SubCosts > 0) 
      { 
       model.InsuredSubs = true; 
       model.SubClassCode = "95626 - Subcontractor - TEST CLASS"; 
       model.SubClassExposure = model.SubCosts; 
      } 

      db.Entry(model).State = EntityState.Modified; 
      db.SaveChanges(); 
      return RedirectToAction("Edit", new { quoteID = model.QuoteID }); 
     } 
     return View(model); 
    }

和HTML：

@model DomaniOnline.Models.DomaniData.Quote 

@{ 
    ViewBag.Title = "Classification"; 
    } 

    <h2>General Liability Classification</h2> 

    @using (Html.BeginForm()) 
    { 
    @Html.ValidationSummary(true) 
    <fieldset> 

    @Html.HiddenFor(model => model.QuoteID) 
    @Html.HiddenFor(model => model.Insured) 
    @Html.HiddenFor(model => model.Insured.Address) 
    @Html.HiddenFor(model => model.RiskAddress) 
    @Html.HiddenFor(model => model.Agency) 
    @Html.HiddenFor(model => model.Agency.Address) 

     . 
     . 
     . 
     . 
    <p> 
     @Html.ActionLink("Back to Insured Info", "Edit", "Insured", new { insuredID = Model.Insured.InsuredID }, null) 
     <input type="submit" value="Save & Continue" /> 
    </p> 
</fieldset> 
}

我想指出的是，「回到投保信息」 ActionLink的頁面底部工作得很好，並能提供正確的model.Insured.InsuredID。但出於某種原因，將表單提交給HttpPost時，任何屬性爲自定義數據類型的爲空。 Html.HiddenFor <>被添加爲測試，同時試圖讓這個工作。

編輯：類：

public class Quote 
{ 
    public virtual int QuoteID { get; set; } 
    public virtual Address RiskAddress { get; set; } 
    public virtual Agency Agency { get; set; } 
    public virtual Insured Insured { get; set; } 

    public virtual DateTime PropEffDate { get; set; } 
    public virtual bool InsuredSubs { get; set; } 
    public virtual int SubCosts { get; set; } 
    . 
    . 
    . 
    } 
    public class Address 
    { 
    [Required] 
    public virtual string StreetAddress { get; set; } 
    [Required] 
    public virtual string City { get; set; } 
    [Required] 
    public virtual string State { get; set; } 
    [Required] 
    public virtual string ZipCode { get; set; } 
    } 
    public class Insured 
    { 
    public virtual int InsuredID { get; set; } 
    [Required] 
    public virtual string Name { get; set; } 
    [Required] 
    public virtual Address Address { get; set; } 
    public virtual string DBA { get; set; } 
    [Required] 
    public virtual string BusinessType { get; set; } 
    public virtual string Phone { get; set; } 
    }

來源

2012-02-17 Marc

請向我們展示課程。另外，請考慮使用單獨的ViewModels;那可能會解決這個問題。 – SLaks 2012-02-17 18:09:44