public static byte[] ReadWholeArray(Stream stream) 
        { 
//Source 
//http://www.yoda.arachsys.com/csharp/readbinary.html 
//Jon Skeet 
            byte[] data=new byte[stream.Length]; 
  
            int offset = 0; 
            int remaining = data.Length; 
            while (remaining > 0) 
            { 
                int read = stream.Read(data, offset, remaining); 
                if (read <= 0) 
                    throw new EndOfStreamException 
                        (String.Format("End of stream reached with {0} bytes left to read", remaining)); 
                remaining -= read; 
                offset += read; 
            } 
  
            return data; 
        }