C# asp.net自定义缓存依赖项，立即全部刷新

我有一个自定义缓存依赖项

class MyCacheDependency : CacheDependency
{
    private const int PoolInterval = 5000;
    private readonly Timer _timer;
    private readonly string _readedContent;

    public MyCacheDependency()
    {
        _timer = new Timer(CheckDependencyCallback, this, PoolInterval, PoolInterval);
        _readedContent = ReadContentFromFile();
    }

    private void CheckDependencyCallback(object sender)
    {
        lock (_timer)
        {
            if (_readedContent != ReadContentFromFile())
            {
                NotifyDependencyChanged(sender, EventArgs.Empty);
            }
        }
    }

    private static string ReadContentFromFile()
    {
        return File.ReadAllText(@"C:\file.txt");
    }

    protected override void DependencyDispose()
    {
        if (_timer != null) _timer.Dispose();

        base.DependencyDispose();
    }
}

它工作得很好，但是我想知道如何一次刷新所有对象。在这里，我将2个对象放入缓存

Insert（“c1”，“var1”，新的MyCacheDependency（））

Insert（“c2”，“vae2”，新的MyCacheDependency（））

这很好，但当c1检测到更改时，如何强制c2不要等待5秒进行检查，但我想在c1执行此操作时将其自身称为DependencyDispose

---

换句话说，如果c1检测到更改，c2也应该调用DependencyDispose

也许您可以添加一个静态事件，该事件将在CheckDependencyCallback（）方法中触发。然后在MyCacheDependency的构造函数中附加一个eventhandler。触发事件时，可以从那里调用NotifyDependencyChanged或DependencyDispose。这样，所有MyCacheDependency对象都会对更改作出反应

class MyCacheDependency : CacheDependency
{
    private const int PoolInterval = 5000;
    private readonly Timer _timer;
    private readonly string _readedContent;

    public static event EventHandler MyEvent;

    public MyCacheDependency()
    {
        _timer = new Timer(CheckDependencyCallback, this, PoolInterval, PoolInterval);
        _readedContent = ReadContentFromFile();
        MyEvent += new EventHandler(MyEventHandler);
    }

   protected void MyEventHandler(object sender, EventArgs e) {
    NotifyDependencyChanged(sender, e);
   }

    private void CheckDependencyCallback(object sender)
    {
        lock (_timer)
        {
            if (_readedContent != ReadContentFromFile())
            {
                if(MyEvent!=null)
                    MyEvent(sender, EventArgs.Empty);
            }
        }
    }

    private static string ReadContentFromFile()
    {
        return File.ReadAllText(@"C:\file.txt");
    }

    protected override void DependencyDispose()
    {
        if (_timer != null) _timer.Dispose();

        base.DependencyDispose();
    }
}