在用户控件中使用Notification弹窗

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public partial class DemoView : UserControl
{

    private WindowNotificationManager? _manager;

    public DemoView()
    {
        InitializeComponent();
    }

    protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
    {
        base.OnAttachedToVisualTree(e);
        var topLevel = TopLevel.GetTopLevel(this);
        _manager = new WindowNotificationManager(topLevel){ MaxItems = 5};
    }

    private void Button_OnClick(object? sender, RoutedEventArgs e)
    {
        _manager?.Show(new Notification("错误信息标题", "错误信息的内容！", NotificationType.Error));
    }
}

在窗口中使用Notification弹窗

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public partial class MainWindow : Window
{
    private WindowNotificationManager? _manager;

    public MainWindow()
    {
        InitializeComponent();
    }

    protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
    {
        base.OnApplyTemplate(e);
        _manager = new WindowNotificationManager(this) { MaxItems = 5 };
    }

    private void Button_OnClick(object? sender, RoutedEventArgs e)
    {
        _manager?.Show(new Notification("错误信息标题", "错误信息的内容！", NotificationType.Error));
    }
}