This is possible, but only if you derive from the GroupManagerRow, and do your custom painting (e.g paint your own check box), and handle the mouse click in the derive class. The sample I sent you gives you the basis of what you need to accomplish this. However, we do not support custom classes as such, so even though we provide a sample, you are basically on your own with this.
Imported from legacy forums. Posted by Matt (had 2850 views)