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Last Updated: 12 Sep 2025 08:01 by ADMIN
Simon
Created on: 04 Sep 2025 07:31
Category: Kendo UI for Angular
Type: Bug Report
0
Kendo Grid data not showing after ungrouping with virtual scrolling option

Hello,

I tried to implement this new feature : https://www.telerik.com/kendo-angular-ui/components/grid/scroll-modes/virtual#controlling-the-expanded-state-of-all-root-level-groups

You can see in the demo that if you remove all grouping, the content is now limited to 50 lines instead of displaying the whole 1000.

I found a workaround by expanding all before removing the grouping but it is not very user friendly.

If you can patch it ASAP that would be great. 

And thank you to finally have pushed this long awaited feature !

4 comments
ADMIN
Yanmario
Posted on: 12 Sep 2025 07:17

Hi Simon,

Thank you for the provided steps and video.

Our team reproduced the issue, and it is classified as a bug. I will update the status, and you will receive a notification when a fix becomes available. If you prefer GitHub, you can also subscribe to the following issue:

https://github.com/telerik/kendo-angular/issues/4708

Your Telerik Points were also updated for reporting this behavior to us. 

Regards,
Yanmario
Progress Telerik

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Simon
Posted on: 05 Sep 2025 08:23
Ok I found the difference with your test. I delete the first name THEN the city whereas you delete the city first.
Simon
Posted on: 05 Sep 2025 08:20

Hello,

 

In attachment you could find the video I just made from the Kendo website.  I use W11 and Google Chrome 139.0.7258.155.

 

Attached Files:
ADMIN
Martin Bechev
Posted on: 05 Sep 2025 08:01

Hello Simon,

We are glad that you found the new feature useful.

I tested the demo from the page and removed all groups. But I was able to scroll to the last record. I am attaching a video demonstrating the Grid behavior on my side.

Could you please provide more details on what environment the issue is reproduced, or any specific steps that need to be followed to observe the problem? Thank you in advance.

Regards,
Martin Bechev
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.

Attached Files:
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