I read with great interest that you were successful using version 4.0 of the data enterprise library. I use it for all my ASP.NET apps and want to use it for a simple SharePoint application I'm writing. But I'm running into issues.
Did you have to add the dll's as SafeControls in the WSS web.config file? I don't have them in there yet.
When I add the dll references to my application, it still works. But once I put using Microsoft.Practices.EnterpriseLibrary.Data in my .cs file, I get an error.
I would love to see a detailed explanation on using 4.0 and SharePoint.
Thank you very much!