In case anyone is interested, the only way I have managed to do this is to download the report definition and directly change the XML to set the ConnectionString and...

• This reply was modified 2 years, 11 months ago by  AdrianParker.
• This reply was modified 2 years, 11 months ago by  AdrianParker.

Ok, I've gotten a little further, it's not the password that's causing the problem, it's setting the connection string.

    .UseOriginalConnectString = False
  ...

Slight correct to the above, if I update the user / password in the Manage report screen as above, it doesn't work but if I change it in the Edit...

The code is VB.Net  and it is working correctly in that it does indeed update the values in the datasource which does update the datasource in the report on the...