Question

i am searching in a while loop for a particular character to check whether it reached the end of file.

Which character which i can search for ??

Eg:

Indexof('/n')  end of line
Indexof(' ') end of word
???? ---------- end of file??

Answer 1

The end of a Stream is reached when a Stream.Read returns zero.

An example from MSDN, FileStream:

// Open a stream and read it back.
using (FileStream fs = File.OpenRead(path))
{
    byte[] b = new byte[1024];
    UTF8Encoding temp = new UTF8Encoding(true);
    while (fs.Read(b,0,b.Length) > 0)
    {
        Console.WriteLine(temp.GetString(b));
    }
}

or,

using (StreamReader sr = File.OpenText(filepath))
{
     string line;
     while ((line = sr.ReadLine()) != null)
     {
          // Do something with line...
          lineCount++;
     }
}