DataAnnotations localization message issue for RegEx validation

I have a p开发者_Python百科roblem with the validation message for Regular expression. Localised messages appear everywhere except for one field below:

    [LocalizedDisplayName("LblWordCount", NameResourceType = typeof(ValidationMessages.Messages))]
    [Required(ErrorMessageResourceName = "ErrorFieldRequired", ErrorMessageResourceType = typeof(ValidationMessages.Messages))]
    [RegularExpression(@"^[0-9]+$", ErrorMessage = "", ErrorMessageResourceName = "ErrorDigitsOnly", ErrorMessageResourceType = typeof(ValidationMessages.Messages))]
    public Int32 WordCount { get; set; }

It doesn't matter what I put in the resx file for "ErrorDigitsOnly" - the default message always kicks in: "The value 'zxzza1' is not valid for Word Count." For instance - message for the [Required] appears correctly.

Any suggestions for that?

Cheers, 303

I have checked the code for spelling mistakes but couldn't find any.

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I actually ran across a similar situation myself. Have you tried setting the wordcount validation in another class instead of using the regex pattern in the DataAnnotation Attribute?

For example -

  public class EmailAttribute: RegularExpressionAttribute
{
    public EmailAttribute() : base(@"[^@\.]+(\.[^@\.]+)*@[^@\.]+(\.[^@\.]+)?(\.[^@\.]{2,})")
    {
    }

    public override string FormatErrorMessage(string name)
    {
        return Resources.Resources.emailValidation;
    }
}

You can then use the attribute like so -

    [CustomRequired]
    [Email]
    public string Email { get; set; }

The advantages of using it this way means that you get strong typing on your resources and it also allows you to write neater validation classes.

Hope it helps!