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by Alan Thomson >> Tue, 27 Jul 1999 23:29:02 GMT

Hi

I have a query on the use of tables --- there's probably an easy answer but it don't stare me in da face.

If I change cells in a table then the rowColumnChg event is triggered.

What I want to do is update the UI in the current form throughout execution of this event -- but I'm finding that all updates to the UI are not enacted until the event has completed.

For example if I have a statusLine1 control on the form and during execution of rowColumnChg I want to refresh what's displayed how do I do it ???


statusLine1.caption := "Loading HeeBees ..."
loadHeeBees;
statusLine1.caption := "Loading GeeBees ..."
loadGeeBees;
statusLine1.caption := "Completed loading ..."

In the above example all the user would see in the statusLine would be "Completed loading ..." instead of having the message changed throughout execution.

Regards
Alan

by Dean Cooper >> Tue, 27 Jul 1999 23:44:04 GMT

Try using refreshNow after updating the status line caption? For example:

statusLine1.caption := "Loading HeeBees ..."
statusLine1.refreshNow;
loadHeeBees;
statusLine1.caption := "Loading GeeBees ..."
statusLine1.refreshNow;
loadGeeBees;
statusLine1.caption := "Completed loading ..."

Dean.

by JADE News >> Tue, 27 Jul 1999 23:49:48 GMT

This is a common problem I've found. The last thing JADE seems to do is the paint event (a bit like how the button controls appear to stay in the 'down' position until the event has completed). The refreshNow() method will repaint the statusLine control immediately however.

darrell.

by Craig Shearer >> Wed, 28 Jul 1999 0:12:52 GMT

This isn't a JADE problem - it's a MS Windows "design" feature - the paint event is a low priority message and won't get executed until the Window's message queue is empty of all higher priority messages.... or something like that (my memory of Windows programming is getting murky!)

Craig.