Hi, please find attached a very basic demo (built with version 11.2), which illustrates the following point:
Our users are complaining about the slow scrolling performance when scrolling down the grid.
Is there a reason for this inconsistency?
Hello gsharm3,
I tried your example, I tested it with your version and also the latest version of Net Advantage controls and do not see such behavior as the described. Yes, the performance is poor but please note that this WinGrid instance has a lot of rows and columns, therefore there are a lot of UIElements. They need to be painted everytime you scroll. I could not see any difference when scrolling up and scrolling down. Please take a look at the attached video file.
Thanks Boris.
It looks like the issue is not evident when the window is small.
Maximize the Window and try again.
You will see the scrolling up is substantially slower than scrolling down.
Does this happen every time or only the first time?
In other words, if you scroll down once, then scroll back up to the top, and then scroll down again, is it faster the second time or is it still just as slow as the first time you scrolled down?
Happens consistently every time. Scrolling down always seems to be more sluggish than scrolling up. The example here isolates this problem, but it is even more pronounced in our production grid with additional formatting and colors applied.
I created the following case for you: 'CAS-92893-HSPFC3' and will update you through it.
This case was opened few months back and I wanted to know if there is a solution. We noticed similar sluggish behavior when we try to scroll vertically by pressing the down arrow key. We are using Infragistics XamDataGrid (v10.3) - WPF.
Also if we keep the key pressed for a significant amount of time and then release it, the grid still keeps on scrolling downwards for 3-6 seconds. Our users are getting annoyed by this behavior. Please help!
Hello Gaurav,
This issue has been resolved from 12.1.2050 and 11.2.2108 versions. Please try them out.