我编写了一个测试程序来监视我的图片文件夹，该文件夹指向同一用户的 c:\users[username]\Pictures 和临时 Internet 文件文件夹。如果我将文件夹更改为 d:\persona_pics 等其他位置，则此程序可以正常工作。知道为什么当我将提到的文件夹设置为监视时没有引发事件吗？
这是代码。
class Program
{
static void Main(string[] args)
{
//FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[username]\AppData\Local\Microsoft\Windows\Temporary Internet Files\low\content.ie5\");
FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[username]\Pictures\ ");
myJpegFileWatcher.Filter = "*.jpg";
myJpegFileWatcher.Created += new FileSystemEventHandler(myJpegFileWatcher_Created);
myJpegFileWatcher.Changed += new FileSystemEventHandler(myJpegFileWatcher_Changed);
myJpegFileWatcher.IncludeSubdirectories = true;
myJpegFileWatcher.NotifyFilter = NotifyFilters.CreationTime;
myJpegFileWatcher.EnableRaisingEvents = true;
Console.Read();
}
static void myJpegFileWatcher_Changed(object sender, FileSystemEventArgs e)
{
FileInfo duplicateFile = new FileInfo(@e.FullPath);
bool flag = true;
while (flag)
{
try
{
if (duplicateFile.Length > 20000)
{
duplicateFile.CopyTo(@"d:\pics\spy\ " + e.Name);
flag = false;
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
fs.Close();
}
else
{
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("file is not being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
fs.Close();
}
}
catch (Exception ex)
{
//
}
}
}
static void myJpegFileWatcher_Created(object sender, FileSystemEventArgs e)
{
FileInfo duplicateFile = new FileInfo(@e.FullPath);
bool flag = true;
while (flag)
{
try
{
if (duplicateFile.Length > 20000)
{
duplicateFile.CopyTo(@"d:\pics\spy\ " + e.Name);
flag = false;
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
fs.Close();
}
}
catch (Exception ex)
{
//
}
}
}
}
工作代码..
类程序{静态无效主要（字符串[]参数）{
FileSystemWatcher myJpegFileWatcher = new FileSystemWatcher(@"C:\Users\[user]\Pictures\");
myJpegFileWatcher.Filter = "*.jpg";
myJpegFileWatcher.Changed += new FileSystemEventHandler(myJpegFileWatcher_Changed);
myJpegFileWatcher.IncludeSubdirectories = true;
myJpegFileWatcher.EnableRaisingEvents = true;
Console.Read();
}
static void myJpegFileWatcher_Changed(object sender, FileSystemEventArgs e)
{
FileInfo duplicateFile = new FileInfo(@e.FullPath);
bool flag = true;
while (flag)
{
try
{
if (duplicateFile.Exists)
{
if (duplicateFile.Length > 20000)
{
try
{
duplicateFile.CopyTo(@"d:\pics\spy\" + e.Name,true);
}
catch (Exception ex)
{
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("Error Inside copying:{0}", ex.Message);
fs.Close();
}
finally
{
flag = false;
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("file is being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
fs.Close();
}
}
else
{
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("file is not being copied:{0}, Size={1}", e.FullPath, duplicateFile.Length);
fs.Close();
}
}
}
catch (Exception ex)
{
StreamWriter fs = new StreamWriter(@"d:\pics\log.txt", true);
fs.WriteLine("Error:{0}", ex.Message);
fs.Close();
}
}
}
}