using System.IO; 

	using System.Text; 

	namespace LucienBao.Commons 

	{ 

	public static class FileHelper 

	{ 

	public static string ShareRead(string file, Encoding encoding) 

	{ 

	string content = string.Empty; 

	FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); 

	try 

	{ 

	if (fs.CanRead) 

	{ 

	byte[] buffer = new byte[fs.Length]; 

	fs.Read(buffer, 0, buffer.Length); 

	content = encoding.GetString(buffer); 

	} 

	} 

	finally 

	{ 

	fs.Close(); 

	fs.Dispose(); 

	} 

	return content; 

	} 

	public static void ShareAppend(string content, string file, Encoding encoding) 

	{ 

	ShareWrite(content, file, encoding, FileMode.Append); 

	} 

	public static void ShareWrite(string content, string file, Encoding encoding, FileMode fileMode) 

	{ 

	FileStream fs = new FileStream(file, fileMode, FileAccess.Write, FileShare.Read); 

	try 

	{ 

	if (fs.CanWrite) 

	{ 

	byte[] buffer = encoding.GetBytes(content); 

	if (buffer.Length > 0) 

	{ 

	fs.Write(buffer, 0, buffer.Length); 

	fs.Flush(); 

	} 

	} 

	} 

	finally 

	{ 

	fs.Close(); 

	fs.Dispose(); 

	} 

	} 

	} 

	}