There are two ways I can think of to solve this problem. One way would be
to create another FileSystemWatcher for the other directory. The other
option would be to have you FileSystemWatcher monitor a directory higher up
in the hierarchy and then start the appropriate process based on where the
file was created. Something like this (pseudocode):
Monitor c:\root1
if new file created in c:\root1\subdir1 do process A
else if new file created in c:\root1\subdir2 do process B
else ...
Of course, this watches all files created in c:\root1, so depending on how
much activity that directory gets this might be more expensive than
watching the two specific directories. This also assumes that the
directories to watch are located in a common directory. One could watch
the root drive, but I think that would be way too expensive, but I don't
have any data to back that up.
hth
-Joel
--------------------
Reply-To: "Jack David" <JD****@NordisDirect.Com>
From: "Jack David" <JD****@NordisDirect.com>
Subject: File System Monitor Question
Date: Mon, 10 May 2004 11:25:29 -0400
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Using the code below I am able to monitor a single directory for a new file
and then kick-off a process to deal with the file. The question is??? How
would I modify this code to be able to monitor a couple of different
directories and based upon the directory where the new file is created
kick-off a process
Example:
File A in Directory B starts process C
File F in Directory X starts process Y
Thanks
using System;
using System.IO;
using FileProcessor;
namespace DirectoryMonitorConsole
{
/// <summary>
/// Summary description for Class1.
/// </summary>
public class DirectoryMonitorConsole
{
private File_Processor objFileProcessor;
/// <summary>
/// Used as a test application for the Directory Monitor Service
/// </summary>
[STAThread]
public static void Main()
{
// Define the directory to monitor
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = @"c:\FTPIN\PSIFL";
//watcher.Path = @"d:\FTPIN\PSIFL";
// Define what to monitor
watcher.NotifyFilter = NotifyFilters.DirectoryName |
NotifyFilters.FileName;
// Define file filter
watcher.Filter = "*.*";// look for any new file
// Define event handlers
watcher.Created += new FileSystemEventHandler(OnChanged);
// Begin watching the directory
watcher.EnableRaisingEvents = true;
// Wait for the user to quit the program
Console.WriteLine(@"Press q to quit this program");
while(Console.Read()!='q');
}
/// <summary>
/// Event handler for a new file put into the directory that is being
monitored
/// </summary>
/// <param name="source"></param>
/// <param name="e"></param>
private static void OnChanged(object source, FileSystemEventArgs e)
{
Console.WriteLine("File: {0} {1}!", e.FullPath, e.ChangeType);
// Get the name of the new file
// Make a reference to a directory
DirectoryInfo di = new DirectoryInfo(@"c:\FTPIN\PSIFL");
//DirectoryInfo di = new DirectoryInfo(@"c:\FTPIN\PSIFL");
// Get a reference for each file in the directory
FileInfo[] fi = di.GetFiles();
string strFileName = fi[0].ToString();
fi = null;
di = null;
File_Processor objFileProcessor = new
FileProcessor.File_Processor(strFileName);
objFileProcessor = null;
}
}
}
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