I have installed SQL Server 2008 Developer edition. In visual studio, when I want to add new data connection in server explorer (sql database file) I’m getting the following error message:
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I don’t get errors when I chose Microsoft SQL Server as DataSource.
SQL Server allows remote connections.
Attaching directly to a .MDF file works only with SQL Server Express edition. It’s a Express-only feature.
For the Developer edition, you need to attach the MDF to your Developer server (using SQL Server Management Studio) and thus pick it from the server’s list of databases.