StreamWriter and UTF-8 Byte Order Marks
c#, file-encodings
Solution
As someone pointed that out already, calling without the encoding argument does the trick. However, if you want to be explicit, try this:
using (var sw = new StreamWriter(this.Stream, new UTF8Encoding(false)))
To disable BOM, the key is to construct with a `new UTF8Encoding(false)`, instead of just Encoding.UTF8Encoding. This is the same as calling StreamWriter without the encoding argument, internally it's just doing the same thing.
To enable BOM, use `new UTF8Encoding(true)` instead.
Update: Since Windows 10 v1903, when saving as UTF-8 in notepad.exe, BOM byte is now an opt-in feature instead.
Problem
I'm having an issue with StreamWriter and Byte Order Marks. The documentation seems to state that the Encoding.UTF8 encoding has byte order marks enabled but when files are being written some have the marks while other don't. I'm creating the stream writer in the following way: ``` this.Writer = new StreamWriter(this.Stream, System.Text.Encoding.UTF8); ``` Any ideas on what could be happening would be appreciated.