How can I set a RegularExpression data annotation's regular expression argument at runtime?

Question

We manage several ASP.NET MVC client web sites, which all use a data annotation like the following to validate customer email addresses (I haven\'t included the regex here,

Answer 1

Why not just write you own ValidationAttribute?

http://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.validationattribute.aspx

Then you can configure that thing to pull the regex from a registry setting... config file... database... etc... etc..

How to: Customize Data Field Validation in the Data Model Using Custom