ASP.NET MVC3：ValidationType ModelClientValidationRule

我刚刚创建了一个示例MVC3应用程序来学习validation。 它正在使用DataAnnotations。 我创建了一个名为CustomStartLetterMatch的自定义ValidationAttribute 。 它正在实现“System.Web.Mvc.IClientValidatable”。 我有相应的客户端代码用不引人注目的jQuery编写。 这是按预期工作的。

关于自定义validation器：它比较第一个名称输入和姓氏输入。 如果它们的第一个字符不相同，则抛出错误。

正如我所说，该应用程序运行正常。 但是当我查看规则时rule.ValidationType = "greaterdate"; 我很困惑。 我想把它改成像“anotherDefaultType”这样的东西。 当我更改它时，它失败并出现jQuery错误。

1. 这是什么原因？
2. 有哪些可用的ValidationTypes？
3. 在此场景中更改ValidationType的建议方法是什么？

码：

 using System; using System.ComponentModel.DataAnnotations; using System.Collections.Generic; namespace MyValidationTEST { public class Person { [Required(ErrorMessage = "First name required")] public string FirstName { get; set; } [CustomStartLetterMatch("FirstName")] [StringLength(5,ErrorMessage = "Must be under 5 characters")] public string LastName { get; set; } [Range(18,50,ErrorMessage="Must be between 18 and 50")] public int Age { get; set; } } public sealed class CustomStartLetterMatch : ValidationAttribute, System.Web.Mvc.IClientValidatable { private const string _defaultErrorMessage = " First letter of '{0}' must be same as first letetr of '{1}'"; private string _basePropertyName; public CustomStartLetterMatch(string basePropertyName) : base(_defaultErrorMessage) { _basePropertyName = basePropertyName; } //Override FormatErrorMessage Method public override string FormatErrorMessage(string name) { return string.Format(_defaultErrorMessage, name, _basePropertyName); } //Override IsValid protected override ValidationResult IsValid(object value, System.ComponentModel.DataAnnotations.ValidationContext validationContext) { //Get PropertyInfo Object var basePropertyInfo = validationContext.ObjectType.GetProperty(_basePropertyName); var baseValue = (string)basePropertyInfo.GetValue(validationContext.ObjectInstance, null); var currentValue = (string)value; string firstLetterBaseValue = baseValue.Substring(0, 1); string firstLetterCurrentValue = currentValue.Substring(0, 1); //Comparision if (!string.Equals(firstLetterBaseValue, firstLetterCurrentValue)) { var message = FormatErrorMessage(validationContext.DisplayName); return new ValidationResult(message); } //Default return - This means there were no validation error return null; } public IEnumerable GetClientValidationRules(System.Web.Mvc.ModelMetadata metadata, System.Web.Mvc.ControllerContext context) { var rule = new System.Web.Mvc.ModelClientValidationRule(); rule.ErrorMessage = FormatErrorMessage(metadata.GetDisplayName()); rule.ValidationParameters.Add("other", _basePropertyName); rule.ValidationType = "greaterdate"; yield return rule; } } 

}

视图

 @model MyValidationTEST.Person @{ ViewBag.Title = "Create"; } 
Create
   @*UnObtrusive*@    /*Register adapter - addSingleVal*/ jQuery.validator.unobtrusive.adapters.addSingleVal("greaterdate", "other"); /*Validation type names in unobtrusive client validation rules must consist of only lowercase letters*/ /*Add Method*/ jQuery.validator.addMethod("greaterdate", function (val, element, other) { var modelPrefix = element.name.substr(0, element.name.lastIndexOf(".") + 1) var otherVal = $("[name=" + modelPrefix + other + "]").val(); if (val && otherVal) { var lastNameFirstLetter = val.substr(0, 1); var firstNameFirstLetter = otherVal.substr(0, 1); if (lastNameFirstLetter != firstNameFirstLetter) { return false; } } return true; });  @using (Html.BeginForm()) { @Html.ValidationSummary(true) 
 
Person
 
 @Html.LabelFor(model => model.FirstName) 
 
 @Html.EditorFor(model => model.FirstName) @Html.ValidationMessageFor(model => model.FirstName) 
 
 @Html.LabelFor(model => model.LastName) 
 
 @Html.EditorFor(model => model.LastName) @Html.ValidationMessageFor(model => model.LastName) 
 
 @Html.LabelFor(model => model.Age) 
 
 @Html.EditorFor(model => model.Age) @Html.ValidationMessageFor(model => model.Age) 
 
  
 
 } 
 @Html.ActionLink("Back to List", "Index")  

控制器：

 using System.Web.Mvc; namespace MyValidationTEST.Controllers { public class RelativesController : Controller { // GET: /Relatives/ public ActionResult Index() { return View(); } // GET: /Relatives/Create public ActionResult Create() { Person person = new Person(); return View(person); } // POST: /Relatives/Create [HttpPost] public ActionResult Create(Person relativeToAdd) { if (ModelState.IsValid) { return RedirectToAction("Index"); } return View(relativeToAdd); } } } 

读：

ASP.NET MVC3 – 自定义validation属性 – >客户端损坏

Answer 1

我想把它改成像“anotherDefaultType”这样的东西

您只能使用ValcaseType属性的小写字母：

 rule.ValidationType = "anotherdefaulttype"; 

然后调整您的客户端脚本以反映此修改：

 jQuery.validator.unobtrusive.adapters.addSingleVal("anotherdefaulttype", "other"); jQuery.validator.addMethod("anotherdefaulttype", function (val, element, other) { ... });