using System.IO;
class test
{
public static void Main()
{
string path=@"c:\mytext.txt";
if(File.Exists(path))
{
File.Delete(path);
}
FileStream fs=new FileStream(path,FileMode.OpenOrCreate);
StreamWriter str=new StreamWriter(fs);
str.BaseStream.Seek(0,SeekOrigin.End);
str.Write("mytext.txt.........................");
str.WriteLine(DateTime.Now.ToLongTimeString()+" "+DateTime.Now.ToLongDateString());
string addtext="this line is added"+Environment.NewLine;
File.AppendAllText(path,addtext); //Exception occurrs ??????????
string readtext=File.ReadAllText(path);
Console.WriteLine(readtext);
str.Flush();
str.Close();
Console.ReadKey();
//System.IO.IOException: The process cannot access the file 'c:\mytext.txt' because it is //being used by another process.
// at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
}
}