How can I create a data access layer

Question

hi How can I create a data access layer for existing application in which I didnt created first. Any easy way so that I need not to change the code.

Sheikh parvaz · Answer

is there no one to answer huh..

Sheikh parvaz · Answer

I have created an application in which I have written all code in code behind files of the aspx pages. I want to migrate the code to App_Code folder in classes without any code change.For this I m stuck!

Prabhu Raja · Answer

Hi Without knowing your existing DAL Structure it will be very difficult to answer your question. Please provide your existing technology details. But Now a days  the data access layer is designed with the help of entity framework which is very easy to access code and maintain. Please try this one : http://www.c-sharpcorner.com/tags/1/entity-model http://msdn.microsoft.com/en-US/data/ee712907