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Editorial Team
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Asked: 2026-06-01T21:28:56+00:00

I am writing a desktop application using MVVM and Prism and I have the

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I am writing a desktop application using MVVM and Prism and I have the following problem. As well as the labels etc it is also necessary to store data in different languages.

For example, in the USA a user might be able to login using either English or Spanish (as they are a native speaker).

  • If the user logs in using Spanish when they go into a product details
    form the product description will be saved to the database against
    the Spanish language.
  • If they log in using English the product description will be saved to
    the database and related to the English language.

At the moment my only ideas is as below:-
– a globally accessible ApplicationViewModel that contains a
CurrentLoggedInUser property

What I would like to know is how I go about saving the currently logged in user’s chosen language when using MVVM, particularly in a desktop application?
N.B the chosen language can be different to the language and locale that the operating system is in

How do other people go about resolving this and maintaining the user’s “session” across different windows / user controls when using MVVM?

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1 Answer

  1. Editorial Team

    All you need to do is store the current language somewhere, maybe as an LCID.

    Generally this is used to load a language specific resource file, which takes care of most language dependant situations. Controls etc just store all their strings in resources, so they don’t need direct access to the current language.

    For situations where you do need access to the language, such as knowing where to save your database string, then yes, the language should be exposed either as some static/singleton, or more desirably, should be injected into whatever ViewModels need it.

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