FileSystemWatcher事件未触发
FileSystemWatcher事件未触发
提问于 2014-05-23 05:58:03
我的FileSystemWatcher没有抛出任何事件。我看过这些类似的问题，似乎没有一个是我的问题的答案：
*编辑:我的目标是在XLS文件被复制到目录或在目录中创建时捕获。
- Filesystemwatcher doesn't trigger event
- FileSystemWatcher - event not firing the second time
- FileSystemWatcher Changed event doesn't fire
- FileSystemWatcher - only the change event once firing once?
监视器类：
public class Monitor
{
FileSystemWatcher watcher = new FileSystemWatcher();
readonly string bookedPath = @"\\SomeServer\SomeFolder\";
public delegate void FileDroppedEvent(string FullPath);
public event FileDroppedEvent FileDropped;
public delegate void ErrorEvent(Exception ex);
public event ErrorEvent Error;
public Monitor()
{
watcher.Path = bookedPath;
watcher.Filter = "*.xls";
watcher.NotifyFilter = NotifyFilters.LastWrite;
watcher.Changed += new FileSystemEventHandler(watcher_Changed);
watcher.Error += new ErrorEventHandler(watcher_Error);
}
void watcher_Error(object sender, ErrorEventArgs e)
{
Error(e.GetException());
}
void watcher_Changed(object sender, FileSystemEventArgs e)
{
if (e.ChangeType != WatcherChangeTypes.Created) return;
FileDropped(e.FullPath);
}
public void Start()
{
watcher.EnableRaisingEvents = true;
}
public void Stop()
{
watcher.EnableRaisingEvents = false;
}
}带有列表框的简单表单：
public partial class Form1 : Form
{
Monitor monitor = new Monitor();
public Form1()
{
InitializeComponent();
FormClosing += new FormClosingEventHandler(Form1_FormClosing);
Load += new EventHandler(Form1_Load);
monitor.FileDropped += new Monitor.FileDroppedEvent(monitor_FileDropped);
monitor.Error += new Monitor.ErrorEvent(monitor_Error);
}
void Form1_Load(object sender, EventArgs e)
{
monitor.Start();
}
void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
monitor.Stop();
}
void monitor_Error(Exception ex)
{
listBox1.Items.Add(ex.Message);
}
void monitor_FileDropped(string FullPath)
{
listBox1.Items.Add(FullPath);
}
}我做错了什么？
回答 4
Stack Overflow用户
发布于 2014-05-23 06:23:01
试试这个。对我来说，这是一个非常类似的任务。
watcher.NotifyFilter = NotifyFilters.FileName;
watcher.Created += new FileSystemEventHandler(handler);
watcher.Renamed += new RenamedEventHandler(handler);Stack Overflow用户
发布于 2016-05-14 00:43:13
这可能是因为文件元数据尚未更新。如果您连续写入该文件，则可能会发生这种情况。
Stack Overflow用户
发布于 2018-05-28 19:52:19
您是否尝试过以下操作：
watcher.Path = directory name;
watcher.NotifyFilter = NotifyFilters.LastWrite;
watcher.Filter = "*.xls";
watcher.Changed += OnDirectoryChange;
watcher.Error += OnError;
watcher.EnableRaisingEvents = true;
// Watch only files not subdirectories.
watcher.IncludeSubdirectories = false;页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/23817735
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