检查事件(双击)是否正在运行

我正在编写一个在许多状态之间切换的工具。对于某些事件，我需要确保它们不会在被调用函数（事件内部）运行时再次执行。这是我以前的管理方式：

// Global variables //
public bool func1IsRunning = false;
public bool func2IsRunning = false;
...
public void listView_DoubleClick(object sender, EventArgs e) 
{
    if(!func1IsRunning)
    {
        func1();
        func1IsRunning = false;
    }
}
public void func1()
{
    func1IsRunning = true;
    // some code in here //
}

但随着我的工具的每一次扩展，全局变量的列表都会增加。此外，事件和函数读起来也不太清楚。

有没有这样的方法（？）：

public void listView_DoubleClick(object sender, EventArgs e) 
{
    if(DoubleClick.IsHandled)
    {
        func1();
    }
}
public void func1()
{
    // some code in here //
    // ................. //
    DoubleClick.IsHandled = true; // at the end of the function //
}

因此，我正在寻找一种方法来确定一个事件是否仍在运行。我的代码正在运行，我只是对它的外观不满意。

有什么想法吗？

---

更新1

我决定使用Steve的答案，因为它以最清晰的方式解决了我的问题。无论如何，它目前运行不正常。

以下是我的代码的样子：

public void listView_DoubleClick(object sender, EventArgs e)
        {
            try
            {
                listView.DoubleClick -= new EventHandler(listView_DoubleClick);
                itemEdit();
            }
            finally
            {
                listView.DoubleClick += new EventHandler(listView_DoubleClick);
            }
        }

上面的代码并没有禁用处理程序。

public void listView_DoubleClick(object sender, EventArgs e)
        {
            try
            {
                listView.DoubleClick -= listView_DoubleClick;
                itemEdit();
            }
            finally
            {
                listView.DoubleClick += listView_DoubleClick;
            }
        }

此代码也不会禁用处理程序。

这是启用处理程序的行（MainForm.Designer.cs）:

this.listView.DoubleClick += new System.EventHandler(this.listView_DoubleClick);

没有出现任何错误。事件只是一次又一次地被炒。问题出在哪里？

更新2:
正如Sinatr在下面的评论中所问的，我的功能是否真的在等待，或者只是启用用户输入，他发现了错误的地方。

根据我写错的问题，Steve的答案是正确的。非常感谢你们。

public void listView_DoubleClick(object sender, EventArgs e) 
{
    try
    {
         listView.DoubleClick -= listView_DoubleClick;
         // Now, even if func1 causes a DoubleClick event,
         // or user manages to trigger a DobuleClick
         // there is no event registered and this code could
         // reentered until you exit from func1.
         func1();
    }
    finally
    {
         // Important part. the finally block is required 
         // because you should readd the event handler 
         // ALSO in case an exception occurs in func1 
         // and it is not handled there
         listView.DoubleClick += listView_DoubleClick;
    }
}

public void listView_DoubleClick(object sender, EventArgs e) 
{
    Control c = sender as Control;
    try
    {
         if(c != null)
         {
              c.DoubleClick -= listView_DoubleClick;
              // Now, even if func1 causes a DoubleClick event,
              // or user manages to trigger a DobuleClick
              // there is no event registered and this code could
              // reentered until you exit from func1.
              func1();
         }
    }
    finally
    {
         // Important part. the finally block is required 
         // because you should readd the event handler 
         // ALSO in case an exception occurs in func1 
         // and it is not handled there
         if(c != null) c.DoubleClick += listView_DoubleClick;
    }
}

private object globalLock = new object();
private Dictionary<int, object> lockObjects = new Dictionary<int, object>();
public void listView_DoubleClick(object sender, EventArgs e) 
{
    object lockObject;
    lock (globalLock) // to avoid two threads creating the object
    {
        if (!lockObjects.ContainsKey(1))
            lockObjects.Add(1, new object());
        lockObject = lockObjects[1];
    }
    if (Monitor.TryEnter(lockObject) // enter only if no thread has already entered
    {
        try { func1(); }
        finally { Monitor.Exit(lockObject); }
    }
}

enum AppState
{
     Ready = 1,
     InsideListView1Click = 2,
     InsideListView1DoubleClick = 3
     InsideListView2Click = 4,
     InsideListView2DoubleClick = 5
}

private AppState m_State = AppState.Ready;

private void ListView1_DoubleClick(object sender, EventArgs e)
{
    lock
    {
        if(m_State != AppState.Ready)
            return;
        else
            m_State = AppState.InsideListView1DoubleClick;
    }
    //Do your stuff
    m_State = AppState.Ready;
 }