验证功能无法正常工作

我有一个“评论”类别：验证功能无法正常工作

public class Review : IValidatableObject 
{ 
    public int ReviewId { get; set; } 

    [DisplayName("Digning Date")] 
    [DisplayFormat(DataFormatString = "{0:d}", ApplyFormatInEditMode = true)] 
    [DataType(DataType.Date)] 
    public DateTime Created { get; set; } 

    [Range(1, 10)] 
    public int Rating { get; set; } 

    [Required] 
    [DataType(DataType.MultilineText)] 
    public string Body { get; set; } 
    public int RestaurantId { get; set; } 
    public virtual Restaurant Resturant { get; set; } 

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext) 
    { 
     var fields = new[]{ "Created"}; 

     if(Created > DateTime.Now) 
     { 
      yield return new ValidationResult("Created date cannot be in the future.", fields); 
     } 

     if (Created < DateTime.Now.AddYears(-1)) 
     { 
      yield return new ValidationResult("Created date cannot be to far in the past.", fields); 
     } 
    } 
}

它采用IValidatableObject的验证方法来验证创建属性。也这是我的CSHTML代码：

@model OdeToFood.Models.Review 

@{ 
ViewBag.Title = "Create"; 
} 

<h2>Create</h2> 

@section scripts 
{ 
<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()) { 
@Html.ValidationSummary(true) 
<fieldset> 
    <legend>Review</legend> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.Created) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.Created) 
     @Html.ValidationMessageFor(model => model.Created) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.Rating) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.Rating) 
     @Html.ValidationMessageFor(model => model.Rating) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.Body) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.Body) 
     @Html.ValidationMessageFor(model => model.Body) 
    </div> 

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

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

validate方法简单地请检查是否创建的日期的年份在本年度（2012年），或在去年（2011年）。因此，如果用户输入2000年，他应该会收到错误：“创建日期不能在将来。”但我不工作！

也这是我的配置在web.config中：

<appSettings> 
    <add key="webpages:Version" value="1.0.0.0" /> 
    <add key="ClientValidationEnabled" value="true" /> 
    <add key="UnobtrusiveJavaScriptEnabled" value="true" /> 
</appSettings>

这也是我的控制器代码：

public ActionResult Create() 
    { 
     return View(new Review()); 
    } 

    // 
    // POST: /Reviews/Create 

    [HttpPost] 
    public ActionResult Create(int restaurantId, Review newReview) 
    { 
     try 
     { 
      //_db is my DBContext 
      var restaurant = _db.Restaurants.Single(r => r.RestaurantId == restaurantId); 
      newReview.Created = DateTime.Now; 

      restaurant.Reviews.Add(newReview); 
      _db.SaveChanges(); 

      return RedirectToAction("Index"); 
     } 
     catch(System.Data.Entity.Validation.DbEntityValidationException ex) 
     { 
      return View(); 
     } 
    }

什么，我必须做什么？感谢

来源

2012-11-24 Seyed Morteza Mousavi

您是否尝试过调试以查看Validate方法是否被调用？你也可以发布你的控制器这个视图的操作方法代码，请。 –

@PaulTaylor我调试。验证方法执行两次！在第一次执行它验证，但在第二它不验证！ –