Progress® Telerik® UI for WinForms Feedback Portal
Back to Feed
Request a Feature Report a Bug
Completed
Last Updated: 01 May 2026 11:38 by ADMIN
Release 2025.4.1212 (Preview)
Julian
Created on: 19 Nov 2025 09:42
Category: GridView
Type: Bug Report
0
RadGridView: NullReference exception in hierarchy grid while expanding parent row
In this scenario, we are using the custom approach from the How to Change PageViewMode for the Nested Levels in RadGridView KB article. When a child row is expanded and we collapse and expand its parent, an exception is thrown.
3 comments
ADMIN
Dinko | Tech Support Engineer
Posted on: 01 May 2026 11:38

Hello Julian,

The fix is also included in the latest version of our controls. The version specified in the feedback item is the version in which the fix was included and is available afterward.

Regards,
Dinko | Tech Support Engineer
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.

Julian
Posted on: 30 Apr 2026 08:14

Hi

Is the fix only included in the preview version or also in later versions?

ADMIN
Dinko | Tech Support Engineer
Posted on: 19 Nov 2025 09:48

Hello Julian,

Thank you for reporting this behavior.

Regards,
Dinko | Tech Support Engineer
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.

Create an account Log In
View
Type
Status
Category