Push Notifications in Windows 8: Listing 2

The PushNotifier class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Web;
namespace VSMWnsPushNotifier
    public class PushNotifier
        public enum PushType
        private string _uri;
        private string _accessToken;
        public PushNotifier(string uri, string accessToken)
            _uri = uri;
            _accessToken = accessToken;
        public bool SendNotification(PushType pushType, string text,string imageSource)
            bool result = false;
                string rawType = "wns/";
                string notificationContent = String.Empty;
                switch (pushType)
                    case PushType.Badge:
                        rawType += "badge";
                        notificationContent = String.Format("<?xml version='1.0' encoding='utf-8'?><badge value=\"{0}\"/>", text);
                    case PushType.Tile:
                        rawType += "tile";
                        notificationContent = String.Format("<?xml version='1.0' encoding='utf-8'?><tile><visual lang=\"en-US\">
                        <binding template=\"TileWideSmallImageAndText03\"><image id=\"1\" src=\"{0}\"/><text id=\"1\">{1}</text>
                        </binding></visual></tile>", imageSource, text);
                    case PushType.Toast:
                        rawType += "toast";
                        notificationContent = String.Format("<?xml version='1.0' encoding='utf-8'?><toast><visual>
                        <binding template=\"ToastImageAndText01\"><image id=\"1\" src=\"{0}\" alt=\"Placeholder image\"/>
                        <text id=\"1\">{1}</text></binding></visual></toast>", imageSource, text);
                var subscriptionUri = new Uri(_uri);
                var request = (HttpWebRequest)WebRequest.Create(subscriptionUri);
                request.Method = "POST";
                request.ContentType = "text/xml";
                request.Headers = new WebHeaderCollection();
                request.Headers.Add("X-WNS-Type", rawType);
                request.Headers.Add("Authorization", "Bearer " + _accessToken);
                byte[] notificationMessage = Encoding.Default.GetBytes(notificationContent);
                request.ContentLength = notificationMessage.Length;
                using (Stream requestStream = request.GetRequestStream())
                    requestStream.Write(notificationMessage, 0, notificationMessage.Length);
                var response = (HttpWebResponse)request.GetResponse();
                result = (response.StatusCode == HttpStatusCode.OK);
            catch (Exception)
                result = false;
            return result;

About the Author

Eric Vogel is a Senior Software Developer for Red Cedar Solutions Group in Okemos, Michigan. He is the president of the Greater Lansing User Group for .NET. Eric enjoys learning about software architecture and craftsmanship, and is always looking for ways to create more robust and testable applications. Contact him at [email protected].

comments powered by Disqus


  • .NET for Apache Spark Debuts in Version 1.0

    The open source project .NET for Apache Spark has debuted in version 1.0, finally vaulting the C# and F# programming languages into Big Data first-class citizenship.

  • In-App Reviews Come to Xamarin.Forms Android

    Android is playing a little catch-up to iOS regarding in-app review functionality, just now coming tp Microsoft's Xamarin.Forms implementation.

  • C# Slides in Usage Ranking of Programming Languages

    "The fact that C# lost three places in the ranking of language communities during the last three years is mostly explained by its slower growth compared to C/C++ and PHP."

  • Telerik UI for Blazor Updated

    Progress announced an update to its Telerik UI for Blazor components, targeting Microsoft's open source Blazor framework that lets C# coders create web apps without having to rely upon JavaScript.

  • Infragistics Unveils UI Components for Blazor

    Infragistics, specializing in third-party UI/UX controls and tools, unveiled a new offering targeting Blazor, Microsoft's red-hot open source framework that allows for C#-based web development instead of traditional mainstay JavaScript.

Upcoming Events