How Can I Use Interfaces For Pocoentities In Asp.Net Webapplication

Please submit some examples of your entities concerned, the data source(s) and the functions you want to separate.

Generally, the MVC principle is to remove all action events and code from the presentation layer. You can do this simply in ASP.net by adding EF to a BL project/assembly. Keep your code separate : PL calls BL methods, passing parameters and Class objects, BL calls DAL methods/transactions and logs events. Hope this helps, but do post back for more discussion about what code you have so far.