CODEWITHSUNDEEP
c#eventshandlerfilesystemwatcher
John Soer
John Soer

Reputation: 551

FileSystemWatcher remove event handler

For some reason I can not remove an event handler from the FileSystemWatcher.

This is what I have

void Start()
{
     ivFileSystemWatcher = new FileSystemWatcher();
     ivFileSystemWatcher.Changed += 
        new FileSystemEventHandler(ivFileSystemWatcher_Changed);
}

void Stop()
{
     ivFileSystemWatcher.Changed -= 
        new FileSystemEventHandler(ivFileSystemWatcher_Changed);
     ivFileSystemWatcher.Dispose();
}

When I call start I start receiving the change events, but when I call stop I am expecting the events to stop but they are still being raised.

Upvotes: 5

Views: 14608

Answers (1)

Mitch Wheat
Mitch Wheat

Reputation: 300499

Have you tried setting EnableRaisingEvents to false:

void Stop() 
{ 
     ivFileSystemWatcher.EnableRaisingEvents = false;

     ivFileSystemWatcher.Changed -=  
        new FileSystemEventHandler(ivFileSystemWatcher_Changed); 
     ivFileSystemWatcher.Dispose(); 
}

Without seeing the rest of your code, I'm not convinced that's the best place for the Dispose()...

Upvotes: 11

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