在 2 个 WPF 窗口之间发送事件 [英] Sending event between 2 WPF windows

问题描述

我有两个 WPF 窗口.一个是主窗口，另一个是一些配置窗口.我希望配置窗口将事件发送到主窗口.知道我是如何完成它的吗?

I have two WPF windows. One is the main window and the other is some configuration window. I would like the configuration window to send and event to the main window. Any idea how I an accomplish it?

这是我创建和打开配置窗口的方式:

This is how I create and open the configuration window :

 private void MenuItem_Click(object sender, RoutedEventArgs e)
    {
        ConfigPage Confwin= new ConfigPage();
        Confwin.Owner = this;
        Confwin.Show();
    }

推荐答案

您可以在子窗口类中定义任何事件并在显示窗口之前订阅它.

You can define any event in your child window class and subscribe to it before showing the window.

主窗口

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
    }

    void MainWindow_Loaded(object sender, RoutedEventArgs e)
    {
        Child childWindow = new Child();
        childWindow.MyEvent += new EventHandler(childWindow_MyEvent);

        childWindow.ShowDialog();
    }

    void childWindow_MyEvent(object sender, EventArgs e)
    {
        // handle event
        MessageBox.Show("Handle");
    }
}

子窗口

public partial class Child : Window
{
    // define event
    public event EventHandler MyEvent;

    protected void OnMyEvent()
    {
        if (this.MyEvent != null)
            this.MyEvent(this, EventArgs.Empty);
    }

    public Child()
    {
        InitializeComponent();

        this.Loaded += new RoutedEventHandler(Child_Loaded);
    }

    void Child_Loaded(object sender, RoutedEventArgs e)
    {
        // call event
        this.OnMyEvent();
    }
}

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