rbell80134 

SpecExpress takes a different approach than most other Validation Frameworks, such as Validation Application Block. SpecExpress doesn't use Attributes to decorate properties and embed all the metadata required... More information

Supports SpecExpress Validation for both server and client side validation in a Microsoft ASP.NET MVC 3 application

Supports SpecExpress Validation for Silverlight applications.

SpecExpress doesn't use Attributes to decorate properties and embed all the metadata required for the rule. Instead, it it uses a separate class, called a Specification, which contains a set a rules for all the... More information