Question

我使用烤面包机窗口，这是XAML的主要部分：

    <Grid.Triggers>
        <EventTrigger RoutedEvent="FrameworkElement.Loaded">
            <BeginStoryboard>
                <Storyboard Completed="Storyboard_Completed">
                    <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleY)" Duration="0:0:10" Completed="DoubleAnimationCompleted">
                        <SplineDoubleKeyFrame KeyTime="0:0:0" Value="0"/>
                        <SplineDoubleKeyFrame KeyTime="0:0:0.5" Value="1"/>
                    </DoubleAnimationUsingKeyFrames>
                    <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)">
                        <SplineDoubleKeyFrame KeyTime="0:0:2" Value="1"/>
                        <SplineDoubleKeyFrame KeyTime="0:0:12" Value="0"/>
                    </DoubleAnimationUsingKeyFrames>
                </Storyboard>
            </BeginStoryboard>
        </EventTrigger>

基本上它是用这样的Show方法调用的：

    public new void Show()
    {
        this.Topmost = true;
        base.Show();

        this.Owner = System.Windows.Application.Current.MainWindow;
        this.Closed += this.NotificationWindowClosed;
        var workingArea = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea;

        this.Left = workingArea.Right - this.ActualWidth;
        double top = workingArea.Bottom - this.ActualHeight;
        foreach (Window window in System.Windows.Application.Current.Windows)
        {
            string windowName = window.GetType().Name;

            if (windowName.Equals("NotificationWindow") && window != this)
            {
                window.Topmost = true;
                top = window.Top - window.ActualHeight;
            }
        }

        this.Top = top;
    }

问题是Notifications弹出窗口仍然是任务管理器中的子窗口。每次烤面包机窗口打开（并再次关闭）时，都会添加一个条目。在XAML中，我已经添加了Completed =＆＃34; DoubleAnimationCompleted＆＃34;和（在Stackoverflow中的另一篇文章后）故事板已完成=＆＃34; Storyboard_Completed＆＃34;＆gt;。调用这两种方法并执行此操作。关闭（）但弹出窗口不会从任务栏中显示出来。所以this.Close（无论以何种方式调用）似乎都不会清除这些条目。

我可以做些什么来改变它？

Answer 1

我终于从“CrashproofCode”发布的样本中找到了答案 WPF 'Toaster' Popup - How to close?。在将他的代码与我的代码进行比较之后，我发现了两个差异导致我的代码保留在任务栏中：

WindowStyle="None" AllowsTransparency="True" Background="Transparent" Closing="Window_Closing"

调用了Window_Closing，显然导致了问题：

private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
    if (!closeCompleted)
    {
        e.Cancel = true;
    }
}

他也有他的XAML：

ShowInTaskbar="False"

仅此一项就足以防止这种情况发生。

Toaster窗口未在任务管理器中关闭

1 个答案: