Can I still use datasource=.\SQLEXPRESS or do I need to change it to : machine_name\SQLEXPRESS for a local instance of SQL Server 2008 Express in C#?
My connection string worked fine in SQL Express 2005, but with the same settings no longer works for 2008.
Assuming the instance name is indeed
SQLEXPRESS, using.\SQLEXPRESSwill work locally.Use the SQL Server Configuration Manager to find out the correct instance name.