MVC重置模型狀態，以便錯誤消息不顯示

Question

我的主頁索引顯示大量數據，並且還包含提交表單。這個表單很好用......除了......驗證錯誤總是存在的。

當用戶成功提交表單，並傳遞ModelState.IsValid方法我重定向他們回到指數（入口點）操作方法。在這一點上，我想所有的驗證不顯示。他們剛剛提交了爲什麼此時顯示錯誤？請參閱下面的代碼（高亮部分顯示了我目前試圖刪除驗證。

當用戶第一次進入屏幕沒有驗證消息（好），但第一個提交後，他們永遠不會消失再次

我怎樣才能得到驗證，以阻止一次我重定向到指數（）謝謝 編輯：？

public ActionResult Index() 
    { 
     var model = new PublicationModel(PublicationRepository.Instance.GetAllPublications().OrderBy(p => p.pname).ToList()); 

     return View(model); 
    } 

    [HttpPost] 
    public ActionResult Index(PublicationSubmitItem model) 
    { 
     if (ModelState.IsValid) 
     { 
      //Send an email 
      return RedirectToAction("Index"); 
     } 

     var parentModel = new PublicationModel(PublicationRepository.Instance.GetAllPublications().OrderBy(p => p.pname).ToList()); 
     parentModel.SubmitItem = model; 

     return View(parentModel); 
    } 

<section id="pubform"> 
 
    @using (Html.BeginForm()) 
 
    { 
 
     @Html.AntiForgeryToken() 
 

 
    <div class="form-horizontal"> 
 
     <fieldset> 
 
      <legend></legend> 
 

 
      @Html.ValidationSummary(true, "", new { @class = "text-danger" }) 
 
      @*@Html.HiddenFor(model => Model.Id)*@ 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.SelectedPublications, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.TextAreaFor(model => model.SelectedPublications, new { @class = "form-control", @readonly = "readonly" }) 
 
        @Html.ValidationMessageFor(model => model.SelectedPublications, "You must pick at least 1 publication.", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control medium-control" } }) 
 
        @Html.ValidationMessageFor(model => model.Name, "A name is required.", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.Email, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.EditorFor(model => model.Email, new { htmlAttributes = new { @class = "form-control medium-control" } }) 
 
        @Html.ValidationMessageFor(model => model.Email, "An email address is required.", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.RoomNumber, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.EditorFor(model => model.RoomNumber, new { htmlAttributes = new { @class = "form-control short-control" } }) 
 
        @Html.ValidationMessageFor(model => model.RoomNumber, "", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.LocationId, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.DropDownListFor(model => model.LocationId, new SelectList(Model.Locations, "Id", "Name")) 
 
        @Html.ValidationMessageFor(model => model.LocationId, "", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.Extension, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.EditorFor(model => model.Extension, new { htmlAttributes = new { @class = "form-control short-control" } }) 
 
        @Html.ValidationMessageFor(model => model.Extension, "", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       @Html.LabelFor(model => model.Comments, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
       <div class="col-md-10"> 
 
        @Html.TextAreaFor(model => model.Comments, new { htmlAttributes = new { @class = "form-control" } }) 
 
        @Html.ValidationMessageFor(model => model.Comments, "", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 

 
      <div class="form-group"> 
 
       <div class="col-md-offset-9 col-md-10"> 
 
        <input type="submit" value="Send" class="btn btn-default" style="background-color: #DAEAF5;" /> 
 
        <input type="button" value="Clear" class="btn btn-default" style="background-color: #DAEAF5;" id="clearButton" /> 
 
       </div> 
 
      </div> 
 
     </fieldset> 
 
    </div> 
 
     
 
    } 
 
</section>

該表格總是顯示驗證錯誤。

@ataravati - 我重定向到索引，因爲我想重新顯示他們剛剛在相同的頁面。表單將重置，數據將相同 - 這是想要的行爲。表單實際上發送一封電子郵件，它不應該將它們重定向到一個不同的頁面。

編輯2 - 我想，如果我刪除我的自定義錯誤消息，表單按預期工作。現在弄清楚爲什麼/如何避開它。

Answer 1

指定使用ValidationMessageFor()的第二個參數顯示的錯誤。相反，使用

@Html.ValidationMessageFor(m => m.Name, null, new { @class = "text-danger" }) 

和組使用數據標註錯誤消息文本上你的屬性

[Required(ErrorMessage = "A name is required.")] 
public string Name { get; set; }