如何在 C# 中对 Dictionary> 使用 Delegate

Question

代码：

[1]

private delegate void ThreadStatusCallback(ReceiveMessageAction action, 
      Dictionary<int, List<string>> message);

[2]

Dictionary<int, List<string>> messagesForNotification = 
      new Dictionary<int, List<string>>();

[3]

Invoke(new ThreadStatusCallback(ReceivesMessagesStatus), 
     ReceiveMessageAction.Notification , messagesForNotification );

[4]

private void ReceivesMessagesStatus(ReceiveMessageAction action, object value)
{
    ...
}

如何分别发送ReceiveMessageAction类型的两个变量Dictionary>到 ReceivesMessagesStatus 方法。

谢谢。

---

我有一个在线程中执行的函数。在这里，我创建了一个 Dictionary > 类型的对象，并使用委托，我想在我的表单中使用该对象。

部分代码如上： [1] 受托人宣誓 [2] 对象 [3] 代表的召唤 [3] 需要发送对象的函数

Answer 1

您可以通过使用 lambda 来实现类型安全，而无需进行强制转换：

  Invoke(new MethodInvoker(
    () => ReceivesMessagesStatus(ReceiveMessageAction.Notification, messagesForNotification)
  ));

Answer 2

您是否尝试过将 value 转换为字典？例如

private void ReceiveMessagesStatus(ReceieveMessageAction action, object value)
{
    var myDictionary = (Dictionary<int, List<string>>)value;
    ...
}

Answer 3

解决方案：

[1]

Invoke(new ThreadStatusCallback(ReceivesMessagesStatus), new object[] { ReceiveMessageAction.Notification, messagesForNotification } );

[2]

private void ReceivesMessagesStatus(ReceiveMessageAction action, Dictionary<int, List<string>> value)
{
    ...
}