base.props ResourceDictionary source

[limeniye]

I have base.props file:

<?xml version="1.0" encoding="utf-8"?>
<Project>
	<ItemGroup>
		<None Include="$(MSBuildThisFileDirectory)AppHead.xaml" />
		
		<ApplicationDefinition
			Include="$(MSBuildThisFileDirectory)AppHead.xaml"
			SubType="Designer"
			XamlRuntime="WinUI"
			Generator="MSBuild:Compile"
			Link="AppHead.xaml" />
		<Compile
			Include="$(MSBuildThisFileDirectory)AppHead.xaml.cs"
			XamlRuntime="WinUI"
			DependentUpon="AppHead.xaml"
			Link="AppHead.xaml.cs" />	
	</ItemGroup>
</Project>

And also I have AppHead.xaml file such as this example:
https://github.com/unoplatform/Uno.Samples/blob/master/UI/MvuxHowTos/SliderApp/SliderApp.Base/AppHead.xaml

<local:App x:Class="Ligric.UI.AppHead" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
           xmlns:local="using:Ligric.UI">

    <local:App.Resources>
		<ResourceDictionary>
			<ResourceDictionary.MergedDictionaries>
				<ResourceDictionary Source="ms-appx:///Ligric.UI/AppResources.xaml" />
			</ResourceDictionary.MergedDictionaries>
		</ResourceDictionary>
	</local:App.Resources>
	
</local:App>

I'am tying to add a style reference to my AppResources:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="ms-appx:///Styles/test.xaml"/>
    </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

My test.xaml (just an empty file for test):

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

</ResourceDictionary>

But I have following result:

The message:

Failed to assign to property 'Microsoft.UI.Xaml.ResourceDictionary.Source' because the type 'Windows.Foundation.String' cannot be assigned to the type 'Windows.Foundation.Uri'. [Line: 7 Position: 25]

If I'll comment this line <!--ResourceDictionary Source="ms-appx:///Styles/test.xaml"--/> the issue is disappearing.

The test repository: https://github.com/limeniye/BasePropsWithStyleResourceDictionary

[jeromelaban]

Thanks for the report. You'll need to explicitly specify the assembly name when referencing a ResourceDictionary in AppResources. See this documentation on how to do it.

[jeromelaban]

Can you also validate that the XAML file has the "Page" build action? You may also try to see if the test.xaml file is in the app package folder.

[limeniye]

I think I miss something, but lets check:

1. My test.xaml file inside the Ligric.UI.Styles
   

2. AppResources.xaml file inside the Ligric.UI with test.xaml Source reference:
   

3. AppResources.xaml has a build action "Page"
   

4. AppHead inside the Ligric.UI.Windows
   

5. I don't have any connect pages and currently my Window application running without window

<EnableDefaultPageItems>false</EnableDefaultPageItems>

That means that I don't use this styles I'am just trying to initialize tham.

[limeniye]

Topic is actual

[limeniye]

@jeromelaban , thanks. Yes, its need to set Page build but I did it only for AppResources. Thats was my mistake.