The FileStream object is used
to write to a file. The Write method of FileStream can be used to write to a
file. It takes a byte array. The following code snippet creates a FileStream
object using the File.Open method that takes a file name as its first parameter
and then uses the Write method of the FileStream to write it the file.
using
(FileStream fs =
File.Open(fileName, FileMode.Open,
FileAccess.Write,
FileShare.None))
{
Byte[] info = new
UTF8Encoding(true).GetBytes("Add
more text");
fs.Write(info, 0,
info.Length);
}