How to get file content once it created

using System;

using System.IO;

public class FileWatcher

{

public static void Main(string[] args)

{

// If a directory is not specified, exit program.

if (args.Length != 1)

{

// Display the proper way to call the program.

Console.WriteLine("Usage: FileWatcher.exe ");

return;

}

try

{

// Create a new FileSystemWatcher and set its properties.

FileSystemWatcher watcher = new FileSystemWatcher();

watcher.Path = args[0];

// Watch both files and subdirectories.

watcher.IncludeSubdirectories = true;

// Watch for all changes specified in the NotifyFilters

//enumeration.

watcher.NotifyFilter = NotifyFilters.Attributes |

NotifyFilters.CreationTime |

NotifyFilters.DirectoryName |

NotifyFilters.FileName |

NotifyFilters.LastAccess |

NotifyFilters.LastWrite |

NotifyFilters.Security |

NotifyFilters.Size;

// Watch all files.

watcher.Filter = "*.*";

// Add event handlers.

watcher.Created += new FileSystemEventHandler(OnChanged);

//Start monitoring.

watcher.EnableRaisingEvents = true;

//Do some changes now to the directory.

//Create a DirectoryInfo object.

DirectoryInfo d1 = new DirectoryInfo(args[0]);

//Create a new subdirectory.

d1.CreateSubdirectory("mydir");

//Create some subdirectories.

d1.CreateSubdirectory("mydir1\\mydir2\\mydir3");

//Move the subdirectory "mydir3 " to "mydir\mydir3"

Directory.Move(d1.FullName + "\\mydir1\\mydir2\\mydir3",

d1.FullName + "\\mydir\\mydir3");

//Check if subdirectory "mydir1" exists.

if (Directory.Exists(d1.FullName + "\\mydir1"))

{

//Delete the directory "mydir1"

//I have also passed 'true' to allow recursive deletion of

//any subdirectories or files in the directory "mydir1"

Directory.Delete(d1.FullName + "\\mydir1", true);

}

//Get an array of all directories in the given path.

DirectoryInfo[] d2 = d1.GetDirectories();

//Iterate over all directories in the d2 array.

foreach (DirectoryInfo d in d2)

{

if (d.Name == "mydir")

{

//If "mydir" directory is found then delete it recursively.

Directory.Delete(d.FullName, true);

}

}

// Wait for user to quit program.

Console.WriteLine("Press \'q\' to quit the sample.");

Console.WriteLine();

//Make an infinite loop till 'q' is pressed.

while (Console.Read() != 'q') ;

}

catch (IOException e)

{

Console.WriteLine("A Exception Occurred :" + e);

}

catch (Exception oe)

{

Console.WriteLine("An Exception Occurred :" + oe);

}

}

// Define the event handlers.

public static void OnChanged(object source, FileSystemEventArgs e)

{

// Specify what is done when a file is changed.

Console.WriteLine("{0}, with path {1} has been {2}", e.Name, e.FullPath, e.ChangeType);

//Readafile();

}

private static void Readafile()

{

int counter = 0;

string line;

// Read the file and display it line by line.

System.IO.StreamReader file =

new System.IO.StreamReader(@"d:\test.txt");

while ((line = file.ReadLine()) != null)

{

System.Console.WriteLine(line);

counter++;

}

file.Close();

System.Console.WriteLine("There were {0} lines.", counter);

// Suspend the screen.

System.Console.ReadLine();

}

}