Use resx files for localization in .NET 9 Maui - Stack Overflow

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I want try to use .resx files for localization in my .NET 9 Maui app. My resource file is in the Resources folder like:

/Resources/Languages/Resources.en.resx

with a key "title".

I try to access this in my views as follows:

xmlns:lang="clr-namespace:MyApp.Resources.Languages"
Title="{x:Static lang:Resources.title}">

It tells me the CLR namespace could not be found. For some reason in .NET 9, you can't access the Resources folder like this anymore.

I already tried various approaches I found on Stackoverflow, but it seems be a .NET 9 specific problem.

I'd be happy if anyone could tell me how to use localization in .NET 9 MAUI apps.

EDIT - Solution For some reason in net9 it has to be named AppResources like AppResources.de.resx which is not clear by documentation (at least at this momenta)

I want try to use .resx files for localization in my .NET 9 Maui app. My resource file is in the Resources folder like:

/Resources/Languages/Resources.en.resx

with a key "title".

I try to access this in my views as follows:

xmlns:lang="clr-namespace:MyApp.Resources.Languages"
Title="{x:Static lang:Resources.title}">

It tells me the CLR namespace could not be found. For some reason in .NET 9, you can't access the Resources folder like this anymore.

I already tried various approaches I found on Stackoverflow, but it seems be a .NET 9 specific problem.

I'd be happy if anyone could tell me how to use localization in .NET 9 MAUI apps.

EDIT - Solution For some reason in net9 it has to be named AppResources like AppResources.de.resx which is not clear by documentation (at least at this momenta)

• localization
• maui
• -9.0

Share Improve this question Follow edited Feb 25 at 5:28 Dura asked Feb 24 at 16:21 DuraDura 8322 silver badges1212 bronze badges 2

• we use a custom translation markup extension – Jason Commented Feb 24 at 16:53
• I cannot see any issue with what you posted. Perhaps you can share more information. Show the entire ContentPage declaration. It would be a bonus if you could upload your project to GitHub and share a link. – Stephen Quan Commented Feb 25 at 0:57

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2 Answers 2

Sorted by: Reset to default 2

.NET MAUI 9 localization handles things a bit differently.

In your case, .xaml is expected to look like something below assuming the resource file is named as AppResources.

<ContentPage ...
    xmlns:strings="clr-namespace:<your-project-name>.Resources.Languages">
...
    <Label Text="{x:Static strings:AppResources.title}"/>

Localization - Best Practices

(Not sure if it's ok on stackoverflow to add additional question to my original question, but opening a new thread sesms like overkill)

I was researching best-practices for localization files, but couldn't find anything useful:

Any advices how to structure these files, naming conventions, etc... (Maybe real-life repos examples - couldn't find any either)

Currently it looks something like this:

 <data name="view_list" xml:space="preserve">
        <value>My List-View Title</value>
    </data>
    <data name="view_list_button_add" xml:space="preserve">
        <value>My List-View add button text</value>
    </data>
    <data name="view_list_headding1" xml:space="preserve">
        <value>My List-View Heading One</value>
    </data>
    <data name="view_list_headding2" xml:space="preserve">
        <value>My List-View Heading Two</value>
    </data>

... and so on. And like this for 3 languages.

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