ZoomContentControl: Failing WinAppSDK Build

[MartinZikmund]

Master Issue: #1290

Current behavior

Crashes with Expected template part not found: PART_ContentGrid"

Expected behavior

How to reproduce it (as minimally and precisely as possible)

Nuget Package:

Package Version(s):

Affected platform(s):

• WebAssembly
• Android
• iOS
• macOS (AppKit)
• Mac Catalyst
• Skia
  • WPF
  • GTK (Linux)
  • Linux Framebuffer
  • Tizen
• Windows

IDE:

• Visual Studio 2022
• Visual Studio 2019
• Visual Studio Code
• Visual Studio for Mac
• Rider Windows
• Rider macOS

Relevant plugins:

Anything else we need to know?

[Xiaoy312]

so somehow the TemplateBinding doesnt work on windows... in this specific case...?

uno.toolkit.ui/src/Uno.Toolkit.UI/Controls/ZoomContentControl/ZoomContentControl.xaml

Line 36 in beb4d12

<ScaleTransform CenterX="{TemplateBinding HorizontalZoomCenter}" CenterY="{TemplateBinding VerticalZoomCenter}" ScaleX="{TemplateBinding ZoomLevel}" ScaleY="{TemplateBinding ZoomLevel}" />

given this xaml

<Grid>
	<ContentPresenter ...>
		<ContentPresenter.RenderTransform>
			<TransformGroup>
				<ScaleTransform ... ScaleX="{TemplateBinding ZoomLevel}" ScaleY="{TemplateBinding ZoomLevel}" />
				^ changing to binding with relativesource tempaltedparent made it work
	<StackPanel>
		<TextBlock Foreground="Red">tb ZoomLevel:<Run Text="{TemplateBinding ZoomLevel}" /></TextBlock>
		<TextBlock Foreground="Red">btp ZoomLevel:<Run Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=ZoomLevel}" /></TextBlock>
	</StackPanel>

here is the result on winappsdk:

microsoft says that "The types used as the value for the source property and the target property must match." while it wasnt the case for the textblock, it should be for ScaleTransform.ScaleX and ZoomContentControl.ZoomLevel, both are double without nullable...

[vatsashah45]

Closing this issue as it has been resolved by #1297