Encoding.GetEncoding can't work in UWP app

Question

I need to encode some text files for native characters.

In my Windows 8.1 Store app, I could use Encoding.GetEncoding() method normally:

Answer 1

We need to use the CodePagesEncodingProvider to register extended encodings included in that specific provider. See CodePagesEncodingProvider Class

Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
Encoding.GetEncoding("windows-1254");

Ref https://msdn.microsoft.com/en-us/library/system.text.encodingprovider(v=vs.110).aspx

The .NET Framework Class Library provides one static property, P:System.Text.CodePagesEncodingProvider.Instance, that returns an EncodingProvider object that makes the full set of encodings available on the desktop .NET Framework Class Library available to .NET Core applications.

The related thread in MSDN forum: Encoding.RegisterProvider -- How to use?