File.ReadAllText can't read

Question

My problem is that I want to parse a file and it had to detect a special char ('Â') to do some stuff. I didn't manage to detect it but it worked with normal chars like 'a'. So I tried to understand where the problem was coming from, and created a .txt file whose only char is 'Â'.

string a = File.ReadAllText("C:/example/example/test.txt");
Console.WriteLine(a.Length);`

Console prints 0. It's like the char doesn't exist. So I tried with different encodings (File.ReadAllText with utf8, utf16, unicode and so) and had the same result.

I really don't know what to do, thanks in advance!

Answer 1

I changed the project target framework and this error message appeared. Try to add "System.IO" before File.ReadAllLines

e.g. Instead of:

File.ReadAllLines(text);

Use:

System.IO.File.ReadAllLines(text);

It happened when you are using two different library with the same function. In this case you need to define the proper library as well.

Answer 2

It works, if you set the encoding as Default:

string result = File.ReadAllText("test.txt", Encoding.Default);

This will give you the "Â".

Answer 3

You are trying to read Latin character(s) which is 8859-1 encoding. Try below

 Encoding iso = Encoding.GetEncoding("ISO-8859-1");
 string a = File.ReadAllText("C:/example/example/test.txt",iso);
 Console.WriteLine(a.Length);