Question

我正在学习.net并按照以下教程http://www.beansoftware.com/NET-Tutorials/Create-Windows-Services.aspx

编写服务

Windows服务已成功安装并且也会启动。但是当我更改文件名或删除文件或添加文件时，它不会将任何信息添加到我的日志文件中 C：\文件夹\ FolderLog.txt

我看到了FolderWatcher_ * *的3种方法，但我没有看到代码中的那些方法。我对.net很新，所以我不确定他们是如何被称为

这是我的完整代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.IO;

    namespace Watcher
    {
        public partial class Watcher : ServiceBase
        {
            public Watcher()
            {
                InitializeComponent();
            }

            protected override void OnStart(string[] args)
            {

            }

            protected override void OnStop()
            {
            }

            private void FolderWatcher_Created(object sender, System.IO.FileSystemEventArgs e)
            {
                TextWriter writer = new StreamWriter("C:\\folder\\FolderLog.txt", true);
                writer.WriteLine(DateTime.Now + " A new folder/file with name " + e.Name + " has been created. ");
                writer.Close();
            }

            private void FolderWatcher_Deleted(object sender, System.IO.FileSystemEventArgs e)
            {
                TextWriter writer = new StreamWriter("C:\\folder\\FolderLog.txt", true);
                writer.WriteLine(DateTime.Now + " A new folder/file with name " + e.Name + " has been deleted. ");
                writer.Close();
            }

            private void FolderWatcher_Renamed(object sender, System.IO.RenamedEventArgs e)
            {
                TextWriter writer = new StreamWriter("C:\\folder\\log.txt", true);
                writer.WriteLine(DateTime.Now + " A new folder/file with name " + e.Name + " has been renamed. ");
                writer.Close();
            }


        }
    }

我已经完成了该教程中的每一步。我没有看到任何描述如何调用这些方法的东西。任何帮助都会很棒

Answer 1

本教程可能会在您的服务的设计模式表面添加FileSystemWatcher。在设计模式下，选择该对象，并在其事件处理程序中，选择类的相应方法。

Answer 2

确保将观察程序实例“FolderWatcher”的事件注册到代码中的事件处理程序，您可以在服务设计者或服务的构造函数中执行此操作，例如：

public Watcher()
{
    InitializeComponent();

    FolderWatcher.Created += FolderWatcher_Created;//when created FolderWatcher_Created will be called
    FolderWatcher.Deleted += FolderWatcher_Deleted;//when deleted call FolderWatcher_Deleted will be called
    FolderWatcher.Renamed += FolderWatcher_Renamed;//when renamed FolderWatcher_Renamed will be called
}

如何在.net中调用我的函数

2 个答案: