in easy language, is it possible to issue a Control-R (refresh chart data)?

lavaman,

yes and there are several ways to do it.

Try using throw elsystem.RecalculateException for example. Using runcommand(".RF"); will also do the trick for you. You can find example code here:
https://community.tradestation.com/Discussions/Topic.aspx?Topic_ID=134314

Regards,
ABCTG

lavaman 

in easy language, is it possible to issue a Control-R (refresh chart data)?