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Localization in ASP.NET hasn’t changed much since the days of WebForms and ASP.NET 1.0 with some minor updates (for WebForms) in ASP.NET 2.0. Since then things have been rather quiet in regards to new localization features.

One of the things that just about any localized ASP.NET app needs to do is set the user’s locale, often based on the active browser language setting. There’s some limited support for auto-local switching built into .NET but this often doesn’t hit all the needs of a typical application scenario where more is required.

This post describes what’s ‘in the box’, and how you can create a simple custom solution that provides a bit more flexibility along with some discussion on how to best set the culture depending on your application requirements, whether its automatic culture detection and setting, or explicitly assigning cultures based on user preferences.

ASP.NET Native Support for Auto Locale Switching