ASP MVC複雜屬性的unobrusive驗證

我有下一個（簡化的）視圖模型：ASP MVC複雜屬性的unobrusive驗證

public class RegisterModel 
{ 
    public string UserName { get; set; } 

    [MustExistIf("SomeProperty", "some value", "SomeOtherProperty", ErrorMessage = "You have to select something")] 
    public string LastName { get; set; } 

    public AddressModel Address { get; set; } 

} 

    public class AddressModel 
{ 
    public string Street { get; set; } 

    public string House { get; set; } 
}

和我有自定義驗證

public class MustExistIfAttribute : ValidationAttribute, IClientValidatable 
{ 
    private string _masterName { get; set; } 

    private object _masterValue { get; set; } 

    private string _dependantName { get; set; } 

    public MustExistIfAttribute(string masterName, object masterValue, string dependantName) 
    { 
     this._masterName = masterName; 
     this._masterValue = masterValue; 
     this._dependantName = dependantName; 
    } 

    protected override ValidationResult IsValid(object value, ValidationContext validationContext) 
    { 
     // get value of master property 
     var masValue = _getValue(validationContext.ObjectInstance, _masterName); 

     // get value of property whch depends on master property 
     var depValue = _getValue(validationContext.ObjectInstance, _dependantName); 

     if (masValue.Equals(_masterValue)) // if value in request is equal to value in specified in data annotation 
     { 
      if (depValue == null) // if dependant value does not exist 
      { 
       return new ValidationResult(FormatErrorMessage(validationContext.DisplayName)); 
      } 
     } 

     return ValidationResult.Success; 
    } 

    public override bool IsValid(object value) 
    { 
     return base.IsValid(value); 
    } 

    public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) 
    { 
     var modelClientValidationRule = new ModelClientValidationRule 
     { 
      ValidationType = "mustexistif", 
      ErrorMessage = FormatErrorMessage(metadata.DisplayName) 
     }; 
     modelClientValidationRule.ValidationParameters.Add("mastername", this._masterName); 
     modelClientValidationRule.ValidationParameters.Add("mastervalue", this._masterValue); 
     modelClientValidationRule.ValidationParameters.Add("dependantname", this._dependantName); 
     yield return modelClientValidationRule; 
    } 

    private static object _getValue(object objectInstance, string propertyName) 
    { 
... 
    } 
}

我有下一個的JavaScript（請忽略返回在mustexitif方法假 - 它只是爲了測試目的）

(function() { 

    jQuery.validator.addMethod('mustexistif', function (value, element, params) { 
     var masterName = params['mastername']; 
     var masterValue = params['mastervalue']; 
     var dependantName = params['dependantname']; 
     return false; 
    }); 


    var setValidationValues = function (options, ruleName, value) { 
     options.rules[ruleName] = value; 
     if (options.message) { 
      options.messages[ruleName] = options.message; 
     } 
    }; 
    var $Unob = $.validator.unobtrusive; 

    $Unob.adapters.add("mustexistif", ["mastername", "mastervalue", "dependantname"], function (options) { 
     var value = { 
      mastername: options.params.mastername, 
      mastervalue: options.params.mastervalue, 
      dependantname: options.params.dependantname 
     }; 
     setValidationValues(options, "mustexistif", value); 
    }); 
})();

它的工作原理當我裝飾LastName屬性具有MustExistIf注解的RegisterModel類（如在提供的代碼中）。但我真正想要的是使用MustExistIf注釋來修飾RegisterModel的複雜Address屬性。問題是，當我這樣做，沒有unobrusive適配器被註冊（JavaScript做這不是觸發）。因此，當我對簡單和複雜的屬性進行處理時，會有所不同。我的解決方案不允許我裝飾Address類的屬性（僅供參考，我試過了，然後驗證工作正常）。有沒有辦法完成我的目標？我錯過了什麼嗎？ Woud解決方案是在模型層面進行驗證的？但是，是否有可能做客戶端驗證？

來源

2013-08-22 ljudevit27

ASP MVC複雜屬性的unobrusive驗證

回答

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