自DataAnnotation在asp.net mvc的不工作

问题描述：

[Required]
[ValidatePasswordLength]

[DataType(DataType.Password)] 
[Display(Name = "Password")]
[Minimumthreenumbers]
public string Password { get; set; }

public class MinimumthreenumbersAttribute : ValidationAttribute 
{

    private const string _defaultErrorMessage = "There should be minimum three letters in the string";

    private string Otherpassword;

    public MinimumthreenumbersAttribute() : base(_defaultErrorMessage)
    {


    }

    public override bool IsValid(object value)
    {
        string i = value.ToString();
        string jobId = i;
        int digitsCount = 0;
        foreach (char c in jobId)
        {
            if (Char.IsDigit(c))
                digitsCount++;
        }

        if (digitsCount > 3)
        {

            return true;
        }


        else
        {

            return false;
        }


    }
}

以上是自定义属性的实现类。上面code实际上已经验证密码检查最少3 numbers.If用户输入的密码有不超过3位，则必须抛出错误。这是规定。但没有按预期工作。如何使上述code工作任何想法？我曾尝试了一段时间，但仍然是行不通的。

The above is the custom attribute implementation class .The above code actually has to validate the password to check for minimum 3 numbers.If the user entered password has less than 3 digits it should throw an error.This is the requirement. But is not working as expected. Any ideas on how to make the above code working? I have tried for some time but still it is not working.

答

不知道这将是足以让你code工作，但至少这将简化您的code。

Not sure that will be enough to make your code "work", but at least this will simplify your code.

public class MinimumthreenumbersAttribute : ValidationAttribute 
{
   public MinimumthreenumbersAttribute() : base("There should be minimum three letters in the string")
   {
   }

   public override bool IsValid(object value)
   {
       return value != null && 
              value.ToString()
                   .Where(Char.IsDigit)
                   .Count() >=3
   }
}

自DataAnnotation在asp.net mvc的不工作

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