Border updates stroke too frequently

[Foda]

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

[github-actions]

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Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

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• Border does not change rendering when modifying StrokeShape properties (#13988), similarity score: 0.77
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• Binding Border.StrokeShape stopped working in 8.0.60-ci.net8.10665 (#22549), similarity score: 0.75

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