Thank you for the note about the command.Parameters.Add statement. That took care of this problem, so now I have to figure out the answer to the next problem. Thanks...

Thanks for the help. I will try and add it to the app.config file based on the link you suggested. Can I just use the following to retrieve it then...

I currently have the Windows Authentication set as the authentication method, with a default username and no password. I tried earlier to change it to Sql authentication but I think...

The application I'm developing is written in C#, but its not a web application so I'm assuming I would need to put the connection string itself into an app.config file...

I tried putting the data source name in square brackets as you suggested, but it didn't help and I got the same SqlException as before. I don't know all that...