CODEWITHSUNDEEP
c#windows-8windows-runtimewindows-store-appswinrt-xaml
Farhan Ghumra
Farhan Ghumra

Reputation: 15296

Localization on the fly in WinRT app

In WinRT app newer localization is applied when app is restarted (using code or by changing language from control panel). What to do if I want to change the localized strings on-the-fly, without restarting the app?

Suppose I have combo box with different languages. If user selects any language, all the strings would be translated using resource.

I came across this code, but it works only if I put it in App constructor, that's also on launch only. I can't make it a static method as it doesn't work.

var culture = new System.Globalization.CultureInfo("en-US");
Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride = culture.Name;
System.Globalization.CultureInfo.DefaultThreadCurrentCulture = culture;
System.Globalization.CultureInfo.DefaultThreadCurrentUICulture = culture;

I want something like below given image. Image is from CodeProject article.

enter image description here

Upvotes: 7

Views: 2012

Answers (2)

Eric MSFT
Eric MSFT

Reputation: 3276

You need to reset the context of the resource manager.

For Windows 8.1:

var resourceContext = Windows.ApplicationModel.Resources.Core.ResourceContext.GetForCurrentView();
resourceContext.Reset();

You will still need to force your page to redraw itself and thus re-request the resources to get the changes to take place. For Windows 8, you can see https://timheuer.com/blog/archive/2013/03/26/howto-refresh-languages-winrt-xaml-windows-store.aspx

Note that PrimaryLanguageOverride is persisted and from your problem description it looks like you would be correctly setting it in response to a user initiated action. I don't think that you have to override the thread cultureinfos except as soon as the user initiates a change as well.

Note also that PrimaryLanguageOverride takes a BCP 47 language tag whereas the CultureInfo uses a locale name which have subtle distinctions.

Upvotes: 6

Mihir Joshi
Mihir Joshi

Reputation: 818

I never try this but I can say if you develop application in windows 8 then no method like Map Change in the application.

But you can achieve your functionality by following 1 Making function which should read resource language on the combo box event change. 2. Make sure you save particular args in local setting. 3. After that you just have to implement a refresh functionality which can refresh your page with language change. All the best..!!

Upvotes: 0

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