c#订阅事件是用了Lambda，怎么取消订阅呢？
代码如下：
panel.DoubleClick += new EventHandler((sender, e) =>{
          //我怎么在这里面取消对这个事件的订阅呢？
}

//求大神解救
------解决方案--------------------
Action<object, EventArgs> pro = null;
pro = (sender, e) =>
{
    //.......
    panel.DoubleClick -= pro;
};
panel.DoubleClick += pro
------解决方案--------------------

panel1.DoubleClick += new EventHandler(

    (sender1, e1)=>

    {

        //......



        Type t = panel1.GetType();

        PropertyInfo pi = t.GetProperty("Events", BindingFlags.Instance 
------解决方案--------------------
 BindingFlags.NonPublic);

        EventHandlerList ehl = (EventHandlerList)pi.GetValue(panel1, null);

        FieldInfo fieldInfo = (typeof(Control)).GetField("EventDoubleClick", BindingFlags.Static 
------解决方案--------------------
 BindingFlags.NonPublic);

        Delegate d = ehl[fieldInfo.GetValue(null)];

        if (d != null)

        {

            foreach (Delegate temp in d.GetInvocationList())

            {

                StackTrace st = new StackTrace(true);

                if (temp.Method == st.GetFrame(0).GetMethod())

                    ehl.RemoveHandler(fieldInfo.GetValue(null), temp);

            }

        } 

    }

);           

参考:
http://social.microsoft.com/Forums/zh-CN/9211ba35-001f-4319-a8e6-96e53995fbf9/c-?forum=visualcshartzhchs
http://www.csharpwin.com/csharpspace/10743r4702.shtml
------解决方案--------------------
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