.NET Core 2的编码问题

Question

This code works as expected in .net framework but not in .net core 2

The file in.txt contains "Düsseldorf"

• in .net framework the output is "Düsseldorf"

• in .net core the output is "D sseldorf"

(I've tried all the other Encodings out of desperation already... no one works)

string infile = @"C:\in.txt", outFile = @"C:\out.txt";

var inStr = new StreamReader(infile, Encoding.Default);
var outStr = new StreamWriter(outFile, false, Encoding.Default);

while (!inStr.EndOfStream)
{
    outStr.WriteLine(inStr.ReadLine());
}

outStr.Flush();
inStr.Dispose();
outStr.Dispose();

Any Ideas why it's not working?

Answer 1

According to the official MSDN page the default encoding is not fixed - it depends on the OS settings. If you know which encoding the file has, specify it!

EDIT: Then try print the encoding details (like name) from the .net framework one that works. Then specify the same in .net core 2. Do not rely on the default one. This page MSDN, List of encodings in the code sample contains a list of encodings that are supported.

UPDATE by gsharp: I had to reference the NuGet Package System.Text.Encoding.CodePages , register them and use it

Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

 var enc1252 = Encoding.GetEncoding(1252);

 var inStr = new StreamReader(infile, enc1252);
 var outStr = new StreamWriter(outFile, false, enc1252);