using IDataErrorInfo in asp.net mvc

Question

I\'ve got a simple address entry app that I\'m trying to use the IDataErrorInfo interface as explained on the asp.net site.

It works great for items that can be val

Answer 1

For more complex business rule validation, rather than type validation it is maybe better to implement design patterns such as a service layer. You can check the ModelState and add errors based on your logic.

You can view Rob Conroys example of patterns here

http://www.asp.net/learn/mvc/tutorial-29-cs.aspx

This article on Data Annotations ay also be useful.

http://www.asp.net/learn/mvc/tutorial-39-cs.aspx

Hope this helps.