Reads a block of bytes from the stream and writes the data in a given buffer.

  


using System;
using System.IO;

class Test
{
    public static void Main()
    {
        string pathSource = @"c:\source.txt";
        string pathNew = @"c:\newfile.txt";

        using (FileStream fsSource = new FileStream(pathSource, FileMode.Open, FileAccess.Read))
        {
            byte[] bytes = new byte[fsSource.Length];
            int numBytesToRead = (int)fsSource.Length;
            int numBytesRead = 0;
            while (numBytesToRead > 0)
            {
                int n = fsSource.Read(bytes, numBytesRead, numBytesToRead);
                if (n == 0)
                    break;

                numBytesRead += n;
                numBytesToRead -= n;
            }
            numBytesToRead = bytes.Length;
            using (FileStream fsNew = new FileStream(pathNew, FileMode.Create, FileAccess.Write))
            {
                fsNew.Write(bytes, 0, numBytesToRead);
            }
        }
    }
}

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Reads a block of bytes from the stream and writes the data in a given buffer. : FileStream « File Stream « C# / C Sharp

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