Whenever I try to connect to my SQL Express Database with C# code,(.net 2.0), it says "Login failed for user 'TUser'. The user is not associated with a trusted SQL Server connection."
But I can connect with SQL Express Manager.
I've heard somewhere this is a SQL authentication problem, I didn't enable it during installation.
So is there a way to fix this? How can I enable SQL authentication without uninstalling it?
Is there anyone to help me?
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