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Request a Feature Report a Bug
Declined
Last Updated: 02 Jul 2026 07:29 by ADMIN
Jakub
Created on: 03 Jun 2026 10:20
Category: UI for WinForms
Type: Bug Report
0
RadStatusStrip VS designer issue

1. Create clean WinForms .NET Framework project.
2. Add Telerik UI for WinForms 2026.2.520.462.
3. Create BaseForm : RadForm.
4. Add RadStatusStrip to BaseForm.
5. Create inherited form RadForm1 : BaseForm.
6. Open inherited form in Visual Studio designer.
7. Designer crashes with NullReferenceException in Telerik.WinControls.UI.Design.RadControlDesigner.OnSetCursor.
8. Remove/comment RadStatusStrip from BaseForm.Designer.cs.
9. Designer opens successfully.

Sample project attached.

 

Attached Files:
3 comments
ADMIN
Nadya | Tech Support Engineer
Posted on: 02 Jul 2026 07:29

Hello, Jakub,

Since there has been no activity on this report for the past month and I have not been able to reproduce the described behavior with the latest version, I will proceed with closing this bug report.

If you have any other questions or need further assistance, please do not hesitate to contact us.

Regards,
Nadya | Tech Support Engineer
Progress Telerik

Modernizing a WinForms application? Use the AI-powered WinForms Converter to simplify migration to Telerik UI for WinForms.
ADMIN
Nadya | Tech Support Engineer
Posted on: 03 Jun 2026 11:54

Hi, Jakub,

Thank you for providing a project. However, when I open the RadForm1 at design time using the specified 2026.2.520 version, I am not able to receive any issues. The VS designer opens successfully, see the image below: 

Here is the BaseForm as well:

The form also shows normally when I run the project. I removed the commented code for the StatusStrip so that it appears on the form.

Am I missing something in reproducing the issue? On my side, I am using Visual Studio 2026.

Regards,
Nadya | Tech Support Engineer
Progress Telerik

Modernizing a WinForms application? Use the AI-powered WinForms Converter to simplify migration to Telerik UI for WinForms.
Attached Files:
Jakub
Posted on: 03 Jun 2026 10:36
In the previous version (2024.1.130.40), it worked correctly.
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