Issue to write to the file

Question

Hi,

I used the way like

using (StreamWriter sw = new StreamWriter(@"z:/oup2.txt", allowappend, Encoding.Unicode))

to write to the output text file but it does work well. Is it being affected by the file type (like Ansi or Unicode one)?

Answer 1

Hi @Peter_1985 ,

If inp2.txt was originally created with a different encoding (e.g., ANSI or UTF-8), then opening it with Encoding.Unicode could misinterpret the characters.

Try using using (StreamReader sr = new StreamReader(@"z:/inp2.txt", true)) to auto-detect encoding.

Answer 2

Hi @Peter_1985 ,

Yes. When you specify Encoding.Unicode, it writes the file in UTF-16 encoding. If the file was originally created with a different encoding (like ANSI), this could cause issues when appending.

Best Regards.

Jiachen Li

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