Codejock Developer Community : redraw problem http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 13 May 2026 04:31:18 +0000 Sat, 04 Feb 2006 10:30:39 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=3600 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[redraw problem : Douglas, There are no ways to...]]> http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10813&title=redraw-problem#10813 Author: sserge
Subject: 3600
Posted: 04 February 2006 at 10:30am

Douglas,

There are no ways to redraw a single cell, but the entire operation is optimized internally.

However, if redrawing a control on every your custom message looks inefficient for you, try using some kind of a workaround - for example redraw a control N times per second by timer, what definitely will be fast enough with reasonable N (5 for example).

--
WBR,
Serge
]]> Sat, 04 Feb 2006 10:30:39 +0000 http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10813&title=redraw-problem#10813 <![CDATA[redraw problem : Thanks for the reply, But why...]]> http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10809&title=redraw-problem#10809 Author: douglashogan
Subject: 3600
Posted: 04 February 2006 at 7:44am

Thanks for the reply,

But why do I have to redraw the ENTIRE control. I just want to invalidate the cell. I have a % indicator which grows as a download proceeds. There are tons of messages coming in and redrawing the entire control every time i get an update message is very inefficient. Is there no way to invalidate/redraw a single cell?

]]> Sat, 04 Feb 2006 07:44:18 +0000 http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10809&title=redraw-problem#10809 <![CDATA[redraw problem : Hi, It&#039;s not incorrect behavior....]]> http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10808&title=redraw-problem#10808 Author: sserge
Subject: 3600
Posted: 04 February 2006 at 7:13am

Hi,

It's not incorrect behavior. Imagine that you'd like to change a number of report control cells values in a loop. If it would be automatically redrawn, you'll see a heavy flickering. So, to avoid that a user has a choice when to call Redraw method.

Yes, of course it is possible to make custom drawn items. You'll have to derive your class from CXTPReportRecordItem and write custom implementation for Draw() method and some others (like mouse events handlers, etc).

--
WBR,
Serge]]> Sat, 04 Feb 2006 07:13:05 +0000 http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10808&title=redraw-problem#10808 <![CDATA[redraw problem : I change the text in one of the...]]> http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10806&title=redraw-problem#10806 Author: douglashogan
Subject: 3600
Posted: 04 February 2006 at 6:40am

I change the text in one of the cells of the report control using SetValue, it doesn't redraw automatically. I currrently have to call redrawwindow for the entire control to update it. What am i doing wrong?

Also, I would like to embed a custom draw gauge control in a cell. Is this possible? If so, are there any examples of similar.

]]> Sat, 04 Feb 2006 06:40:26 +0000 http://forum.codejock.com/forum_posts.asp?TID=3600&PID=10806&title=redraw-problem#10806