ASP.NET MVC 2 - Multiple Regex on a property

Question

I would like to know if a way exists in asp.net mvc 2, to have multiple regular expression on a proprety. For example :

[RegularExpression(\"[^0-9]\", Error         


        

Answer 1

Change attribute usage with a custom class

The best solution is of course to create a custom attribute that inherits from RegularExpressionAttribute but sets different attribute usage settings. The main setting is AllowMultiple that you need to set to true.

[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple=true)]
public class MultiRegularExpressionAttribute: RegularExpressionAttribute
{
    ...
}

You would use this attribute just like you use the existing RegularExpressionAttribute, but you'd have the ability to put multiple of them on the same property.