Cant connect application with connection string .\\Sqlexpress
问题 i am a beginner and using mircosoft Sql Server 2005. i connect with Server name : USER-PC on Windows Authentication. now this is creating a serious problem in my Windows Application. i want to use .\SQLEXPRESS in the connection string in my application but doing this creates an error saying: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL