using System;
using System.IO;

//封裝原來的DirectoryInfo類，添加事件，可以代替FileSystemWatcher 類
public class DirectoryInfoNotify
{
??? public DirectoryInfoNotify(string path)
??? {
??????? internalDirInfo = new DirectoryInfo(path);
??? }
?? ?
??? private DirectoryInfo internalDirInfo = null;
??? public event EventHandler AfterCreate;
??? public event EventHandler AfterCreateSubDir;
??? public event EventHandler AfterDelete;
??? public event EventHandler AfterMoveTo;
??? protected virtual void OnAfterCreate()
??? {
??????? EventHandler afterCreate = AfterCreate;
??????? if (afterCreate != null)
??????? {
?????????? ?
??????????? afterCreate(this, new EventArgs());
??????? }
??? }

??? protected virtual void OnAfterCreateSubDir()
??? {
??????? EventHandler afterCreateSubDir = AfterCreateSubDir;
??????? if (afterCreateSubDir != null)
??????? {
??????????? afterCreateSubDir(this, new EventArgs());
??????? }
??? }

??? protected virtual void OnAfterDelete()
??? {
??????? EventHandler afterDelete = AfterDelete;
??????? if (afterDelete != null)
??????? {
??????????? afterDelete(this, new EventArgs());
??????? }
??? }

??? protected virtual void OnAfterMoveTo()
??? {
??????? EventHandler afterMoveTo = AfterMoveTo;
??????? if (afterMoveTo != null)
??????? {
??????????? afterMoveTo(this, new EventArgs());
??????? }
??? }

??? // Event firing members
??? //激活事件的方法
??? public void Create()
??? {
?????? ?
??????? internalDirInfo.Create();
??????? OnAfterCreate();
??? }

??? public DirectoryInfoNotify CreateSubdirectory(string path)
??? {
??????? DirectoryInfo subDirInfo = internalDirInfo.CreateSubdirectory(path);
??????? OnAfterCreateSubDir();

??????? return (new DirectoryInfoNotify(subDirInfo.FullName));
??? }

??? public void Delete(bool recursive)
??? {
??????? internalDirInfo.Delete(recursive);
??????? OnAfterDelete();
??? }

??? public void Delete()
??? {
??????? internalDirInfo.Delete();
??????? OnAfterDelete();
??? }

??? public void MoveTo(string destDirName)
??? {
??????? internalDirInfo.MoveTo(destDirName);
??????? OnAfterMoveTo();
??? }

??? // Nonevent firing members
??? public string FullName
??? {
??????? get { return (internalDirInfo.FullName); }
??? }
??? public string Name
??? {
??????? get { return (internalDirInfo.Name); }
??? }
??? public DirectoryInfoNotify Parent
??? {
??????? get { return (new DirectoryInfoNotify(internalDirInfo.Parent.FullName)); }
??? }
??? public DirectoryInfoNotify Root
??? {
??????? get { return (new DirectoryInfoNotify(internalDirInfo.Root.FullName)); }
??? }

??? public override string ToString()
??? {
??????? return (internalDirInfo.ToString());
??? }
}

封裝原來的DirectoryInfo類，添加事件，可以代替FileSystemWatcher 類