silverlight 3 中的路由事件？

发布于 2024-12-03 12:44:16 字数 169 浏览 3 评论 0原文

我有一个控件，在控件内，在控件内。

就像这样..

QuizMaster ->问题->答案-> RadioButton

当选中其中一个答案时，我希望运行 Quizmaster 中名为 AskNextQuestion() 的函数。

我该怎么做？

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云淡风轻 2024-12-10 12:44:16

您可以在嵌套控件中创建一个事件，并让您的 QuizMaster 订阅该事件。

在您的 Answers 中添加以下内容：

public static event Action<bool> IsAnswered;

当您在其处理程序和 QuizMaster 中选择 RadioButton 时触发此事件

public void OnRadioButtonSelected(object sender, SomeEventArgs e)
{
  if(IsAnswered != null)
    IsAnswered(true);
}

订阅此静态事件：

public void SomeMethod()
{
  Answers.IsAnswered += new Action<bool>(Answers_IsAnsweredCompleted);
}

public void Answers_IsAnsweredCompleted(bool IsAsnwered)
{
  //call your method in QuizMaster
}

You would create an event in your nested control, and have your QuizMaster subscribe to that event.

In your Answers add this:

public static event Action<bool> IsAnswered;

and Fire this event when you select a RadioButton in its handler

public void OnRadioButtonSelected(object sender, SomeEventArgs e)
{
  if(IsAnswered != null)
    IsAnswered(true);
}

and in your QuizMaster Subscribe to this static event:

public void SomeMethod()
{
  Answers.IsAnswered += new Action<bool>(Answers_IsAnsweredCompleted);
}

public void Answers_IsAnsweredCompleted(bool IsAsnwered)
{
  //call your method in QuizMaster
}

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