Hi Paul,
Thanks for posting in the community.
When using a FileSystemWatcher to watch a folder, and I rename the watched
folder, I don't get any events..
yes, the FileSystemWatcher object can only watch for the changes of the
objects(files and subdirectories) within a specified directory, not the
specified directory itself.
1. how do I get an event if the watched folder changes?
Create another FileSystemWatcher object to watch the specified folder.
2. how do I make future events for child files contained the newly renamed
folder name instead of the old one?
Something like the following code:
...
class Class1
{
//be sure to use the lower-case characters for the pathname string
public static string watchPath = "D:\\tools";
[STAThread]
public static void Main(String[] args) {
//original FileSystemWatcher
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path= Class1.watchPath;
watcher.NotifyFilter = NotifyFilters.FileName |
NotifyFilters.Attributes | NotifyFilters.LastAccess |
NotifyFilters.LastWrite | NotifyFilters.Security | NotifyFilters.Size;
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.Deleted += new FileSystemEventHandler(OnChanged);
watcher.Renamed += new RenamedEventHandler(OnRenamed);
watcher.EnableRaisingEvents = true;
// another FileSystemWatcher to watch the folder itself
FileSystemWatcher watcher2 = new FileSystemWatcher();
string parentPath = (Directory.GetParent(Class1.watchPath)).FullName;
watcher2.Path = parentPath;
watcher2.NotifyFilter = NotifyFilters.DirectoryName;
watcher2.Renamed += new RenamedEventHandler(OnRenamedFolder);
watcher2.EnableRaisingEvents = true;
Console.WriteLine("Press q to quit the sample\r\n");
while(Console.Read() != 'q'){}
}
public static void OnChanged(object source, FileSystemEventArgs e) {
Console.WriteLine("File: {0} {1}", Class1.watchPath + '\\' +
e.Name, e.ChangeType.ToString("G"));
}
public static void OnRenamed(Object source, RenamedEventArgs e) {
Console.WriteLine("File: {0} Renamed to {1}", Class1.watchPath +
'\\' + e.OldName, e.FullPath);
}
public static void OnRenamedFolder(Object source, RenamedEventArgs e)
{
if(e.OldFullPath == Class1.watchPath)
{
Console.WriteLine("File: {0} Renamed to {1}", e.OldFullPath,
e.FullPath);
Class1.watchPath = e.FullPath;
}
}
}
Hope it helps!
Best regards,
Gary Chang
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------
