Last Updated: 02 Dec 2021 12:23 by ADMIN
Constantinos Petridis
Created on: 02 Dec 2021 12:22
Category: ComboBox
Type: Bug Report
ComboBox virtual scrolling breaks when you slowly scroll up after selecting an item. The same behavior goes with the virtualization in DropDownList.

I have a ComboBox/DropDownList that gets data from a remote service, using virtualization. When the PageSize property is big enough (in my case 20), I have issues scrolling up the selection box dropdown list. I'm trying to scroll but then resets to the currently selected item making it almost impossible to scroll up. You can use your own demo examples to replicate this issue.

To reproduce the issue, try the ComboBox - Virtualization, in Telerik REPL (Demo), change the PageSize from 10 to 20. Open the dropdown and select an item. Then, open again the dropdown and scroll slowly up.