Win10Toast.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Toolkit.Uwp.Notifications;
using Windows.UI.Notifications;
using Windows.Data.Xml.Dom;

namespace WpfAdoNetClient
{
    public class Notifications
    {
      public static void Show()
        {
            ToastTemplateType toastTemplate = ToastTemplateType.ToastText02;
            XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate);

            XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
            toastTextElements[0].AppendChild(toastXml.CreateTextNode("My notification from WPF"));
            toastTextElements[1].AppendChild(toastXml.CreateTextNode(DateTime.Now.ToString()));

            ToastNotification toast = new ToastNotification(toastXml);
            ToastNotificationManager.CreateToastNotifier().Show(toast);
        }
    }
}