String from byte array doesn't get trimmed in C#?

Question

I have a byte array similar to this (16 bytes):

71 77 65 72 74 79 00 00 00 00 00 00 00 00 00 00

I use this to convert it to a string and tr

Answer 1

Trim by default removes only whitespace, where whitespace is defined by char.IsWhitespace.

'\0' is a control character, not whitespace.

You can specify which characters to trim using the Trim(char[]) overload:

string result = Encoding.ASCII.GetString(data).Trim(new char[] { '\0' });

Answer 2

Why try to create the string first and trim it second? This could add a lot of overhead (if the byte[] is large).

You can specify index and count in the GetString(byte[] bytes, int index, int count) overload.

int count = data.Count(bt => bt != 0); // find the first null
string result = Encoding.ASCII.GetString(data, 0, count); // Get only the characters you want

Answer 3

They're not really spaces:

System.Text.Encoding.ASCII.GetString(byteArray).TrimEnd('\0')

...should do the trick.

-Oisin

Answer 4

You have to do TrimEnd(new char[] { (char)0 }); to fix this. It's not spaces - it's actually null characters that are converted weirdly. I had this issue too.

Answer 5

In powershell, you can do this:

$yourString.TrimEnd(0x00)