WPF如何实现任务栏通知

Question

使用.NET8的WPF如何基于XAML和CSharp实现具有复杂用户界面的任务栏通知，并且响应事件。可以在不停驻系统托盘的情况下发送任务栏通知吗？

Answer 1

在.NET 8的WPF中，创建一个复杂的用户界面任务栏通知，并响应事件是可以实现的。你可以使用 System.Windows.Forms.NotifyIcon 和 WPF 的相互操作来实现这一目标。下面是一个示例，展示如何基于XAML和C#实现具有复杂用户界面的任务栏通知，并响应事件。

MainWindow.xaml:

 <StackPanel>
     <Button Content="Show Notification" HorizontalAlignment="Center" VerticalAlignment="Center" Click="ShowNotification_Click"/>
 </StackPanel>

MainWindow.xaml.cs:

using System.Windows;

using Application = System.Windows.Application;

namespace notification

{

    public partial class MainWindow : Window

    {

        private NotifyIcon notifyIcon;

        public MainWindow()

        {

            InitializeComponent();

            CreateNotifyIcon();

        }

        private void CreateNotifyIcon()

        {

            notifyIcon = new NotifyIcon

            {

                Icon = new System.Drawing.Icon("C:\\...\\d.ico"),

                Visible = false,

                BalloonTipTitle = "Taskbar Notification",

                BalloonTipText = "This is a notification from your WPF application.",

                BalloonTipIcon = ToolTipIcon.Info

            };

            notifyIcon.DoubleClick += NotifyIcon_DoubleClick;

            notifyIcon.BalloonTipClicked += NotifyIcon_BalloonTipClicked;

            notifyIcon.ContextMenuStrip = new ContextMenuStrip();

            notifyIcon.ContextMenuStrip.Items.Add("Show Notification", null, ShowNotification);

            notifyIcon.ContextMenuStrip.Items.Add("Exit", null, (s, e) => Application.Current.Shutdown());

           

        }

        private void NotifyIcon_DoubleClick(object sender, EventArgs e)

        {

            this.Show();

            this.WindowState = WindowState.Normal;

        }

        private void NotifyIcon_BalloonTipClicked(object sender, EventArgs e)

        {

            

            ShowNotificationWindow();

        }

        private void ShowNotification_Click(object sender, RoutedEventArgs e)

        {

            notifyIcon.Visible = true;

            notifyIcon.ShowBalloonTip(3000);

        }

       

        private void ShowNotification(object sender, EventArgs e)

        {

            ShowNotificationWindow();

        }

        private void ShowNotificationWindow()

        {

            Dispatcher.Invoke(() =>

            {

                var notificationWindow = new NotificationWindow();

                notificationWindow.Topmost = true;

                notificationWindow.Show();

              

            });

        }

        protected override void OnClosing(System.ComponentModel.CancelEventArgs e)

        {

            notifyIcon.Dispose();

            base.OnClosing(e);

        }

    }

}

NotificationWindow:

<Window x:Class="notification.NotificationWindow"

 ...

             Title="Notification" Height="200" Width="300" WindowStyle="None" AllowsTransparency="True" Background="Transparent">

    <Grid Background="White" Margin="10" >

        <StackPanel>

            <TextBlock Text="This is a notification!" FontSize="16" Margin="10"/>

            <Button Content="OK" Width="75" Margin="10" Click="Button_Click"/>

        </StackPanel>

    </Grid> 

</Window>

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        System.Windows.MessageBox.Show("show");
        this.Close();
    }

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