Description

The border control will rebuild the stroke shape when any property changes on the StrokeShape object, including:

• Window
• Parent

This causes a significant performance impact when items are added to a list.

This is caused by the following in Controls\src\Core\Border\Border.cs:

_strokeShapeChanged ??= (sender, e) => OnPropertyChanged(nameof(StrokeShape));

These property changes should not trigger a rebuild of the stroke shape since the Border.OnPropertyChanged event only wants to be notified of the following:

• Height
• Width
• StrokeThickness
• StrokeShape
• StrokeDashArray

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

8.0.80 SR8

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

Unknown/Other

Affected platforms

iOS, Android, Windows, macOS

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

No response