Migrated the project to dotnet core 3.0

src/Sample Project/Showcase/ShowcaseWindow.xaml.cs

@@ -0,0 +1,92 @@
+using System.Diagnostics;
+using System.Windows;
+using System.Windows.Controls.Primitives;
+using System.Windows.Navigation;
+using Hardcodet.Wpf.TaskbarNotification;
+
+namespace Samples
+{
+    /// <summary>
+    /// Interaction logic for ShowcaseWindow.xaml
+    /// </summary>
+    public partial class ShowcaseWindow : Window
+    {
+        public ShowcaseWindow()
+        {
+            InitializeComponent();
+
+
+            Loaded += delegate
+            {
+                //show balloon at startup
+                var balloon = new WelcomeBalloon();
+                tb.ShowCustomBalloon(balloon, PopupAnimation.Slide, 12000);
+            };
+        }
+
+
+        /// <summary>
+        /// Displays a balloon tip.
+        /// </summary>
+        private void showBalloonTip_Click(object sender, RoutedEventArgs e)
+        {
+            string title = txtBalloonTitle.Text;
+            string message = txtBalloonText.Text;
+
+            if (rbCustomIcon.IsChecked == true)
+            {
+                //just display the icon on the tray
+                var icon = tb.Icon;
+                tb.ShowBalloonTip(title, message, icon);
+            }
+            else
+            {
+                BalloonIcon bi = rbInfo.IsChecked == true ? BalloonIcon.Info : BalloonIcon.Error;
+                tb.ShowBalloonTip(title, message, bi);
+            }
+        }
+
+        private void hideBalloonTip_Click(object sender, RoutedEventArgs e)
+        {
+            tb.HideBalloonTip();
+        }
+
+
+        /// <summary>
+        /// Resets the tooltip.
+        /// </summary>
+        private void removeToolTip_Click(object sender, RoutedEventArgs e)
+        {
+            tb.TrayToolTip = null;
+        }
+
+
+        private void showCustomBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            FancyBalloon balloon = new FancyBalloon();
+            balloon.BalloonText = customBalloonTitle.Text;
+            //show and close after 2.5 seconds
+            tb.ShowCustomBalloon(balloon, PopupAnimation.Slide, 5000);
+        }
+
+        private void hideCustomBalloon_Click(object sender, RoutedEventArgs e)
+        {
+            tb.CloseBalloon();
+        }
+
+
+        private void OnNavigationRequest(object sender, RequestNavigateEventArgs e)
+        {
+            Process.Start(e.Uri.ToString());
+            e.Handled = true;
+        }
+
+
+        protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
+        {
+            //clean up notifyicon (would otherwise stay open until application finishes)
+            tb.Dispose();
+            base.OnClosing(e);
+        }
+    }
+}