C# byte[] to String showing don't cut after '\0'

Question

I'm reading something from memory (in byte array) and then i want to convert it, but result is something like "wanteddata\0\0\0\0\0\0\0\0...". How can i cut it to "wanteddata"? I'm not sure of size that wanteddata will have so i gave maximum size: 14. The way i read from memory and convert:

        String w="";
        ReadProcessMemory(phandle, bAddr, buffer, 14, out bytesRW);
        w = ASCIIEncoding.ASCII.GetString(buffer);

Answer 1

Presumably, you want to remove all chars including and after the first '\0'. Trim will not do this. You need to do something like this:

int i = w.IndexOf( '\0' );
if ( i >= 0 ) w = w.Substring( 0, i );

Answer 2

If the array really is ascii (one byte per char), you can find null by searching array for value 0

String w="";
ReadProcessMemory(phandle, bAddr, buffer, 14, out bytesRW);
int nullIdx = Array.IndexOf(buffer, (byte)0);
nullIdx = nullIdx >= 0 ? nullIdx : buffer.Length;
w = ASCIIEncoding.ASCII.GetString(buffer, 0, nullIndex);

This approach would somewhat optimize the code, not creating strings that contains multiple '/0's