由于某种原因,我的FileSystemWatcher
不会触发任何事件。我想知道何时在目录中创建,删除或重命名新文件。我已经检查了_myFolderPath
的设置是否正确。
这是我当前的代码:
public void Setup() {
var fileSystemWatcher = new FileSystemWatcher(_myFolderPath);
fileSystemWatcher.NotifyFilter = NotifyFilters.LastAccess |
NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;
fileSystemWatcher.Changed += FileSystemWatcherChanged;
fileSystemWatcher.Created += FileSystemWatcherChanged;
fileSystemWatcher.Deleted += FileSystemWatcherChanged;
fileSystemWatcher.Renamed += FileSystemWatcherChanged;
fileSystemWatcher.Filter = "*.*";
fileSystemWatcher.EnableRaisingEvents = true;
}
private void FileSystemWatcherChanged(object sender, FileSystemEventArgs e)
{
MessageBox.Show("Queue changed");
listBoxQueuedForms.Items.Clear();
foreach (var fileInfo in Directory.GetFiles(_myFolderPath, "*.*", SearchOption.TopDirectoryOnly))
{
listBoxQueuedForms.Items.Add(fileInfo));
}
}
最佳答案
您似乎在setup方法中将FileSystemWatcher创建为局部变量。当然,这将在方法结束时超出范围,并且很可能在此时进行整理,从而删除了 watch 。
尝试在将要保留的FSW(例如程序级变量)的某个点上创建它,看看是否能使您满意。
关于c# - FileSystemWatcher不触发事件,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/16278783/