At the moment I'm using .edmx file & database first approach to develop my application. But whenever a changes occur in the database, .edmx file needs to be updated, which seems a bit too much. Once I heard that we can use code first approach but use an existing database at the same time which will relive me from updating the .edmx manually. I've followed this tutorial from microsoft.
http://msdn.microsoft.com/en-us/data/jj200620.aspx
At the bottom of this tutorial, I found this:
What if My Database Changes?
The Code First to Database wizard is designed to generate a starting point set of classes that you can then tweak and modify. If your database schema changes you can either manually edit the classes or perform another reverse engineer to overwrite the classes.
But I couldn't understand the point. Does it mean I need to delete all the previous classes & create again? I tried to create another model with the same name, expecting the file to overwrite the existing one, but that was not possible.
Is there any other workaround?