[Lazarus] StringGrid performance problems

zeljko zeljko at holobit.net
Sat May 21 09:40:05 CEST 2011


On Friday 20 of May 2011 19:19:30 Julio César Gázquez wrote:
> El 20/05/11 11:24, Alexsander Rosa escribió:
> > I've noticed that (native Listview is slow in Windows) the hard way: I
> > was proud about how fast my app were on Linux then ran it on Windows
> > and the hourglass became the leading actor. Any suggestions for
> > replacement of Listview?
> 
> Native means the win32 native widget? Did you try recompiling with Qt4?
> AFAIK Qt use their own widgets, so maybe you could get better performance.

Qt's QListWidget/QTreeWidget (TListView) performance isn't so nice. With few 
thousand items it becomes slow.
Better use TVirtualStringTree , it's ultra fast even when you allocate 1000000 
items.

zeljko




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