Hy Julie,
to fix this problem, when i add a new point, i draw again all data, even what it had been drawn before.
This is obviously not correct, but i have not found another way.
Regards
Hi
Why do you never show the code? You complain about something not working as you would like, but you never show code!
Post the code every time you post - always! No exceptions - ever!
Regards Les, Livingston, Scotland