Asp.Mvc 2.0用户登录实例讲解---(4)服务器端验证(3)

       public override string FormatErrorMessage(string name) 
       { 
           return ErrorMessage; 
       } 
 
       /// <summary>  
       /// 重写TYPEID  
       /// </summary>  
       public override object TypeId 
       { 
           get 
           { 
               return _typeid; 
           } 
       } 
 
      /// <summary>  
      /// 判断是否想到  
      /// </summary>  
       /// <param name="value">value的值实际上是MODEL提交的MODEL类</param>  
      /// <returns></returns>  
       public override bool IsValid(object value) 
       { 
           PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(value); 
           object originalValue = properties.Find(PWD, true ).GetValue(value);//获取密码  
           object confirmValue = properties.Find(ConfirmPwd, true).GetValue(value);//获取确认密码的值  
           return Object.Equals(originalValue, confirmValue); 
 
       } 
   } 
 /// <summary>
    /// 此自定义类用于验证密码和确认密码必须一致
    /// </summary>
    [AttributeUsage(AttributeTargets.Class, AllowMultiple = true, Inherited = true)]
    public class PwdMatch :ValidationAttribute
    {

        private object _typeid = new object();
        public string PWD { get; set; }//密码
        public string ConfirmPwd { get; set; }//确认密码

        public PwdMatch(string pwd, string confirmPwd)
            : base()