MVC不显眼的自定义规则只适用于客户端的一种形式

Question

我为我的MVC 5应用程序中的一个特定字段构建了自定义验证规则。它在编辑表单上效果很好，但在“创建”表单上验证相同字段时，客户端验证不会触发 - 客户端验证被触发，但在创建窗体上显示为有效，即使我可以看到它是不是，所以不会显示任何消息。

这两种形式都使用相同的模型。 的脚本在_layout页面添加使这两种观点都有的所有脚本。 这两种观点都具有完全相同的剃刀代码包括ValidationMessageFor（）

当表单到达控制器时，由于自定义错误，模型无效，所以验证在服务器端工作，但不在客户端，我无法找到anythi这将使它以一种形式工作，但不是另一种形式。

这里是我的代码：

自定义属性：

public class AtLeastOneRequiredAttribute : ValidationAttribute, IClientValidatable 
{ 
    public string OtherPropertyNames; 

    public AtLeastOneRequiredAttribute(string otherPropertyNames) 
    { 
     OtherPropertyNames = otherPropertyNames; 
    } 

    protected override ValidationResult IsValid(object value, ValidationContext validationContext) 
    { 
     string[] propertyNames = OtherPropertyNames.Split(','); 
     bool IsAllNull = true; 
     foreach(var i in propertyNames) 
     { 
      var p = validationContext.ObjectType.GetProperty(i); 
      var val = p.GetValue(validationContext.ObjectInstance, null); 
      if(val != null && val.ToString().Trim() != "") 
      { 
       IsAllNull = false; 
       break; 
      } 
     } 

     if(IsAllNull) 
     { 
      return new ValidationResult(FormatErrorMessage(validationContext.DisplayName)); 
     } 
     else 
     { 
      return null; 
     } 
    } 

    public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) 
    { 
     var rules = new ModelClientValidationRule() 
     { 
      ErrorMessage = FormatErrorMessage(metadata.DisplayName), 
      ValidationType = "atleastonerequired" 
     }; 
     rules.ValidationParameters["otherpropertynames"] = OtherPropertyNames; 
     yield return rules; 
    } 
} 

客户端代码：

$(function() { 
    $.validator.unobtrusive.adapters.addSingleVal("atleastonerequired", "otherpropertynames"); 
    $.validator.addMethod("atleastonerequired", function (value, element, params) { 
     var param = params.toString().split(','); 
     var IsAllNull = true; 
     $.each(param, function (i, val) { 
      var valueOfItem = $('#Activity_' + val).val().trim(); 
      if (valueOfItem != '') { 
       IsAllNull = false; 
       return false; 
      } 
     }); 
     if (IsAllNull) { 
      return false; 
     } 
     else { 
      return true; 
     } 
    }) 
}) 

查看 - 编辑&创建形式是相同的：

@using (Html.BeginForm("Edit", "Activity", FormMethod.Post, new { @id = "editActivityForm" })) 
{ 
    @Html.AntiForgeryToken() 

    <div class="form activity-form"> 
     <hr /> 
     @Html.ValidationSummary(true, "", new { @class = "text-danger" }) 
     @Html.HiddenFor(model => model.Activity.RecordId) 


     <div class="form-group"> 
      @Html.LabelFor(model => model.Activity.Acres, htmlAttributes: new { @class = "control-label" }) 
      @Html.EditorFor(model => model.Activity.Acres, new { htmlAttributes = new { @class = "form-control" } }) 
      @Html.ValidationMessageFor(model => model.Activity.Acres, "", new { @class = "text-danger" }) 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Activity.Volume, htmlAttributes: new { @class = "control-label" }) 
      @Html.EditorFor(model => model.Activity.Volume, new { htmlAttributes = new { @class = "form-control" } }) 
      @Html.ValidationMessageFor(model => model.Activity.Volume, "", new { @class = "text-danger" }) 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Activity.Feet, htmlAttributes: new { @class = "control-label" }) 
      @Html.EditorFor(model => model.Activity.Feet, new { htmlAttributes = new { @class = "form-control" } }) 
      @Html.ValidationMessageFor(model => model.Activity.Feet, "", new { @class = "text-danger" }) 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Activity.Hours, htmlAttributes: new { @class = "control-label" }) 
      @Html.EditorFor(model => model.Activity.Hours, new { htmlAttributes = new { @class = "form-control" } }) 
      @Html.ValidationMessageFor(model => model.Activity.Hours, "", new { @class = "text-danger" }) 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Activity.Comment, htmlAttributes: new { @class = "control-label" }) 
      @Html.EditorFor(model => model.Activity.Comment, new { htmlAttributes = new { @class = "form-control" } }) 
      @Html.ValidationMessageFor(model => model.Activity.Comment, "", new { @class = "text-danger" }) 
     </div> 

     <div class="form-group"> 
       <input type="submit" value="Save" class="btn btn-primary" onclick="$.validator.unobtrusive.parse($('#editActivityForm'));" /> 
     </div> 
    </div> 
} 

加入attirbute的型号：

[AtLeastOneRequired("Acres,Volume,Feet,Hours", ErrorMessage = "Activity requires at least one measure - Acres, Volume, Feet or Hours.")] 
    public Nullable<int> Acres { get; set; } 
    public Nullable<int> Volume { get; set; } 
    public Nullable<int> Feet { get; set; } 
    public Nullable<int> Hours { get; set; } 

Answer 1

问题出在客户端代码上。我终于发现客户端代码没有被击中。我最终发现这是因为验证添加在里面（function（）{}）。我删除了“准备好”的作品，现在它每次都有效。