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Grid AcitveX

Posted: Mon Sep 22, 2014 1:57 am
by c-tec
Hello,
xBase++ has a poor browser, but this control could fill the gap. I need nice looking multiline browser combined with pictures in my applications.
There are also other interesting controls availabe, they are not cheap, but seems to be worth the price.
http://www.exontrol.com/exgrid.jsp
Would be nice if it can get integrated in eXpress++, I think it is not so complicated, my demo is working fine, got it from the german user group.
http://www.xbaseforum.de/viewtopic.php? ... rol#p89912
regards
Rudolf

Re: Grid AcitveX

Posted: Mon Sep 22, 2014 3:44 am
by unixkd
I evaluated that control in the past. Though looks good, but I realized that the grid recognize ADO dataset as source data. Using ADO in Xbase++ is not difficult, but when I try to populate a very large table, the control drag forever. That is where you will appreciate the power of Xbase++ controls such as BROWSE that can pull table with MILLIONS of record without performance degradation. I equally had a similar experience with CODEJOCK report control.

Joseph

Re: Grid AcitveX

Posted: Mon Sep 22, 2014 3:51 am
by Tom
Same with me. I struggled with different controls and found out that for displaying table data XbpBrowse is best. Besides, I get it to show data like shown in the grid samples with ownerdrawing. The only thing I can't get working are dynamic row heights. But I don't need them.

Re: Grid AcitveX

Posted: Tue Sep 23, 2014 11:29 pm
by c-tec
Hello,
would be interesting how other systems like WINDEV handle large tables in a browser. I think in Xbase++ it is the btree system that enables the fast browsing. With SQL based system a intelligent caching would be needed. but I doubt that it can bring satisifying speed. Ownerdrawing solves not all my needs, especially for different content and line height in cells.
regards
Rudolf