Lock Group Row

Hope someone can help me with the below request.

I am trying to find a way to lock the group rows so they are always expanded.
When the use clicks on a group row I don't want it to do anything.
I can detect if the user clicks on a group row but no matter what I do I can't seem to stop it collapsing.

Can ayone help?

Thx

I can try to find a solution for you if you provide me with a basic sample (few records & groups) set up the way you want to use the control (minus the ability to prevent groups from collapsing).