Unable to open DataGridView Column Collection Editor in runtime property grid

[Liv-Goh]

.NET version

.NET 10.0.100-preview.4.25169.14

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

Yes, this is a regression issue because it works well on .NET 8.0, 9.0 and previous version of .NET 10 (dotnet-sdk-10.0.100-preview.2.25118.3)

Issue description

Current Behavior
When click ... on the Columns collection, collection editor is not showing

Expected Behavior (dotnet-sdk-10.0.100-preview.2.25118.3)
When click ... on the Columns collection, collection editor will open

Steps to reproduce

1. Create a WinForms Project
2. Add a DataGridView and PropertyGrid
3. Set ProperyGrid Selected Object to DataGridView
4. Run the application
5. Navigate to "Columns" in runtime PropertyGrid and click ... to try to open the Collection Editor.

Or you can Run this project WinFormsApp453.zip and test the issue

More Info

• .NET Framework runtime also have the same issue

[Epica3055]

this is the expected behavior because we introduced DataGridViewColumnCollectionEditor

[Olina-Zhang]

For previous .NET versions, it has an issue when adding columns in DataGridViewColumn Collection Editor: #3143.

[Epica3055]

this is not a bug, same as Framework please see this thread