I am using the built in identity framework for user management, and would like to add a few customizations to the AspNetUsers table. So far the solution to each problem I\'ve en
So, you are using database-first instead of code-first. My recommendation is to use code-first. I, like you, started out using database first, instead. If you aren't using code-first, then delete the migrations table in your database. Otherwise, it will cause problems.
If possible, I recommend following this code-first tutorial, which has helped me greatly. You can easily add custom fields to your identity and have full integration with the framework as far as authentication goes.
http://blogs.msdn.com/b/webdev/archive/2013/10/16/customizing-profile-information-in-asp-net-identity-in-vs-2013-templates.aspx