问题
I'm trying to use a reusable regex class and use along with DataAnnotations in MVC. Something like:
[RegularExpressionAttribute1(typeof(MyRegex))]
This compiles but no error is thrown if the property doesn't match.
It all works with the standard
[RegularExpression(@"^\s*\d+(\.\d{1,2})?\s*$")]
回答1:
You can create a custom validation attribute to re-use regular expressions. For email validation you would do something like this:
using System.ComponentModel.DataAnnotations;
public class EmailAttribute : RegularExpressionAttribute
{
public EmailAttribute()
: base(@"(?i)^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$") { }
}
来源:https://stackoverflow.com/questions/1483630/can-i-use-my-regularexpression-attribute-instead-of-the-dataannotations-one