Change color of GoText object

GoDiagram (6 and previous)
1

Hi,
I have GoText objects in my application.

The requirement is that some of GoText objects should be of red color based on some condition. So I set GoText.TextColor = Color.Red for GoText object which satisfy corresponding condition.
But it doesn't reflected on view.
2

That should work.

Are the GoText's part of a node or some other grouping? Can you provide the exact code you use?