Here is my code i tried many time but con't connect i shows (An exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll but was not handled in user code
Additional information: 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
) some one told me do some changes in web.config file but i don't know which type of changes are that?