Use custom-built .NET Framework 4.0 classes to connect an ASP.NET Web application to a SQL Server 2012 database. In my recent article, I showed how to connect .NET 4.0 C# and Visual Basic applications ...
However, even if you're using Visual Studio 2013, you should make sure you have the latest version of SSDT by going to the Visual Studio SQL menu and selecting Check for Updates. For earlier versions ...