详解C#如何实现一个安全的事件订阅器

 public static class EventSubscriber
 {
     /// <summary>
     /// 订阅消息字典
     /// </summary>
     private static Dictionary<string, SendMessageHandler> MsgDict = new Dictionary<string, SendMessageHandler>();
     public delegate void SendMessageHandler(object MsgContent);

     /// <summary>
     /// 订阅消息
     /// </summary>
     /// <param name="name">消息唯一名称</param>
     /// <param name="AcceptFunction">接受消息的方法</param>
     /// <exception cref="Exception"></exception>
     public static void SubMsg(string name, SendMessageHandler AcceptFunction)
     {
         if (!MsgDict.ContainsKey(name))
         {
             MsgDict.Add(name, AcceptFunction);
         }
         else
         {
             // throw new Exception("已经有" + name + "名称的订阅");
         }
     }

     /// <summary>
     /// 移除指定订阅消息
     /// </summary>
     /// <param name="name">消息名称</param>
     public static void UnSubMsg(string name)
     {
         if (MsgDict.ContainsKey(name))
         {
             MsgDict.Remove(name);
         }
     }

     /// <summary>
     /// 发送消息
     /// </summary>
     /// <param name="name">消息名称</param>
     /// <param name="msgContent">消息内容</param>
     public static void SendMsg(string name, object msgContent)
     {
         if (MsgDict.ContainsKey(name))
         {
             MsgDict[name].Invoke(msgContent);
         }
     }
 }

  EventSubscriber.SubMsg("GetDataTable", SendMessageHandler);

    public void SendMessageHandler(object MsgContent)
    {
        var data = (DataTable?)MsgContent;
        TableWait = true;
    }