文件系统观察者代码 [英] file system watcher code

问题描述

我一直在处理这个基本上运行的文件监视器，如果从这个目录G：\ excelsheet \autoupdates检测到更新，它将复制新的/修改过的文件，并将一个副本粘贴到这个目录C：\ Importantdocs\pnls。由于某种原因，代码中的13行存在编译错误（粗体）。有人可以帮忙吗？

使用System; 
使用System.Collections.Generic; 
使用System.IO;使用System.Reflection 
; 
使用System.Text; 
使用System.Security.Permissions; 
 
名称空间FancyListener 
 {
 class FileWatcher 
 {
 FileSystemWatcher Watcher; 
  string Directory =G：\ GMM \Public\FinPro;  
 [PermissionSet（SecurityAction.Demand，Name =FullTrust）] 
 public FileWatcher（string Directory）
 {
 Watcher = new FileSystemWatcher（Directory）; 
 Watcher.Path =目录; 
 Watcher.NotifyFilter = NotifyFilters.LastWrite; 
 Watcher.Created + = new FileSystemEventHandler（OnCreated）; 
 //开始观看。 
 Watcher.EnableRaisingEvents = true; 
 wait（）; 
 
} 
 private void OnChanged（对象源，FileSystemEventArgs e）
 {
 //指定更改，创建或删除文件时执行的操作。 
 Console.WriteLine（File：+ e.FullPath ++ e.ChangeType）; 
 int filename_parameter = 1; 
 copy（filename_parameter）; 
 
} 
 private void OnCreated（对象源，FileSystemEventArgs e）
 {
 //指定更改，创建或删除文件时执行的操作。 
 Console.WriteLine（File：+ e.FullPath ++ e.ChangeType）; 
 int filename_parameter = 2; 
 copy（filename_parameter）; 
 
} 
 private void wait（）
 {
 Console.WriteLine（Waiting）; 
 while（true）
 {
} 
} 
 public void copy（int testval）
 {
 
 DateTime valueDate = DateTime.Today.Date; 
 string dateString = valueDate.ToString（dd-MM-yyyy）; 
 string filename_var; 
 if（testval == 1）
 filename_var =rate_file_changed_+ @dateString; 
 else 
 filename_var =new_rate_file_+ @dateString; 
 string fileName = filename_var; 
 string sourcePath = @G：\ GMM \Public\FinPro; 
 string targetPath = @\\eitsvrtwprsvc03.ibg.adroot.bmogc.net\Test_DP $; 
 fileName = System.IO.Directory.GetFiles（sourcePath）; 
 string fileName_start = System.IO.Path.GetFileName（fileName）; 
 string destFile = System.IO.Path.Combine（targetPath，fileName_start）; 
 System.IO.File.Copy（fileName_start，destFile，true）; 
} 
} 
} 

解决方案

;
fileName = System.IO .Directory.GetFiles（sourcePath）;
string fileName_start = System.IO.Path.GetFileName（fileName）;
string destFile = System.IO.Path.Combine（targetPath，fileName_start）;
System.IO.File.Copy（fileName_start，destFile，true）;
}
}
}

你需要要么像这样逃避\：



\\



或



在字符串的前面添加一个@。你可以在页面上用其他几个字符串文件路径完成它。

除了解决方案1中发现的错误之外，我认为你应该知道这些CodeProject文章中描述的一些 FileSystemWatcher 问题：

FileSystemWatcher - Pure Chaos（第1部分，共2部分） [ ^ ]，

FileSystemWatcher - Pure Chaos（第2部分，共2部分） [ ^ ]。



< DD> -SA

I''ve been working on this file watcher that will basically run and when if detects an update from this directory "G:\excelsheet\autoupdates" it will copy the new/modified files, and paste a copy into this directory "C:\Importantdocs\pnls". For some reason there is a compile error with respect to the 13 line in the code (bolded). Can someone please help?

using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Text;
using System.Security.Permissions;

namespace FancyListener
{
    class FileWatcher
    {
        FileSystemWatcher Watcher;
        string Directory ="G:\GMM\Public\FinPro";
        [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
        public FileWatcher(string Directory)
        {
            Watcher = new FileSystemWatcher(Directory);
            Watcher.Path = Directory;
            Watcher.NotifyFilter = NotifyFilters.LastWrite;
            Watcher.Created += new FileSystemEventHandler(OnCreated);
            // Begin watching.
            Watcher.EnableRaisingEvents = true;
            wait();
            
        }
        private void OnChanged(object source, FileSystemEventArgs e)
        {
            // Specify what is done when a file is changed, created, or deleted.
            Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
            int filename_parameter = 1;
            copy(filename_parameter);
            
        }
        private void OnCreated(object source, FileSystemEventArgs e)
        {
            // Specify what is done when a file is changed, created, or deleted.
            Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
            int filename_parameter = 2;
            copy(filename_parameter);
                
        }
        private void wait()
        {
            Console.WriteLine("Waiting");
            while (true)
            {
            }
        }
        public void copy(int testval)
        {

            DateTime valueDate = DateTime.Today.Date;
            string dateString = valueDate.ToString("dd-MM-yyyy");
            string filename_var;
            if (testval == 1)
                 filename_var = "rate_file_changed_" + @dateString;
            else
                 filename_var = "new_rate_file_" + @dateString;
            string fileName = filename_var;
            string sourcePath = @"G:\GMM\Public\FinPro";
            string targetPath =  @"\\eitsvrtwprsvc03.ibg.adroot.bmogc.net\Test_DP$";
            fileName = System.IO.Directory.GetFiles(sourcePath);
            string fileName_start = System.IO.Path.GetFileName(fileName);
            string destFile = System.IO.Path.Combine(targetPath, fileName_start);
            System.IO.File.Copy(fileName_start, destFile, true);
        }
    }
}

解决方案

"; fileName = System.IO.Directory.GetFiles(sourcePath); string fileName_start = System.IO.Path.GetFileName(fileName); string destFile = System.IO.Path.Combine(targetPath, fileName_start); System.IO.File.Copy(fileName_start, destFile, true); } } }

You need to either escape the "\" like this:

"\\"

or

add an "@" at the front of the string. You have it done with several other string file paths on your page.

In addition to the bug spotted in Solution 1, I think you should be aware of some FileSystemWatcher problem described in these CodeProject articles:
FileSystemWatcher - Pure Chaos (Part 1 of 2)[^],
FileSystemWatcher - Pure Chaos (Part 2 of 2)[^].

—SA

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