title: Can I use datasource=.\\SQLEXPRESS or do I need to now use: machinename\\SQLEXPRESS
body: <p>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#?</p>
  
  <p>My connection string worked fine in SQL Express 2005, but with the same settings no longer works for 2008.</p>