2011-09-20 285 views
0

我被這個錯誤所困擾,並且打我的腦袋 - 它好像是一個真正的形式,所以這個錯誤(以及我無法解決它)讓我瘋了。未將對象引用設置爲對象的實例 - 表單對象爲空?

我只是試圖更新表中的1個字段。正在更新的字段可能爲空,也可能不爲空。

我在控制器中發生錯誤。 'ilpCareerGoal'對象返回null並導致錯誤。

控制器:

[Authorize] 
    public ActionResult editCareerGoal(int emplID) 
    { 
     ilpCareerGoal careerGoal = qService.getCareerGoal(emplID); 
     return View(careerGoal); 
    } 

[Authorize] 
    [HttpPost] 
    public ActionResult editCareerGoal(ilpCareerGoal careerGoal) 
    { 
     try 
     { 
      qService.editCareerGoal(careerGoal); 
      return RedirectToAction("Index", "Home"); 
     } 
     catch 
     {    
      throw; 
     } 

    } 

查看:

@model ILP.Models.ilpCareerGoal 

@{ 
ViewBag.Title = "editCareerGoal"; 
} 

<h2>Edit Your Career Goal</h2> 

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> 
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> 

@using (Html.BeginForm("editCareerGoal", "Home", FormMethod.Post, new { id = "careerGoalForm" })) 
{ 
@Html.ValidationSummary(false) 
<fieldset> 
    <legend>Career Goal</legend> 
    <div class="editor-label"> 
     @Html.HiddenFor(model => model.emplID) 
     Record information here about what you're striving for professionally. 
    </div> 
    <div class="editor-field"> 
     @Html.TextAreaFor(model => model.careerGoal, new { cols = "90", rows = "15" }) 
    </div> 

    <p> 
     <input type="submit" value="Update" /> 
    </p> 
</fieldset> 
} 

<div> 
@Html.ActionLink("Back to List", "Index") 
</div> 

當我調試我看到 'careerGoal' 在我的控制器是空......我很感激這裏的任何幫助!

更新 - 也許這是一個模型的東西?其實,我在不同的模型這個領域......這裏是爲以防萬一更新我的模型代碼....

型號:

public bool editCareerGoal(ilpCareerGoal tcareerGoal) 
     { 
      employeeDataClassesDataContext careerGoals = new employeeDataClassesDataContext(); 
      ilpCareerGoal careerGoal; 

      try 
      {     
       careerGoal = careerGoals.ilpCareerGoals.Single(c => c.emplID == tcareerGoal.emplID); 
       careerGoal.careerGoal = tcareerGoal.careerGoal; 
       careerGoals.SubmitChanges(); 
       return true; 
      } 
      catch 
      { 
       return false; 
      } 
     } 
+0

看着代碼一切似乎都對我好。你能否發佈初始化視圖的代碼? – Iridio

回答

0

這有可能是在房地產careerGoal之間的名稱衝突在您的editCareerGoal操作中,ilpCareerGoal類和名爲的ilpCareerGoal類型的變量正在導致DefaultModelBinder發生神經錯亂。

嘗試將動作中變量的名稱更改爲不同的名稱,例如careerGoalModel

+0

有趣 - 這似乎已經做到了!非常感謝。 –

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