This document summarizes Wintellect's consulting and training services for building software solutions using Microsoft technologies. Wintellect was founded by experts Jeffrey Richter, Jeff Prosise, and John Robbins to help customers achieve their goals through advanced consulting and training. They offer consulting for architecture, analysis, design, development, debugging and performance tuning. Training courses cover current and emerging Microsoft technologies and are taught by industry leaders.

1. WinRT and the Web: Keeping
Windows Store Apps Alive and
Connected
Consulting/Training

2. About Wintellect
who we are
Founded by top experts on Microsoft – Jeffrey Richter, Jeff Prosise, and John Robbins – we pull
out all the stops to help our customers achieve their goals through advanced software-based
consulting and training solutions.
consulting
training
Wintellect helps you build better software,
faster, tackling the tough projects and solving
the software and technology questions that
help you transform your business.
Wintellect's courses are written and taught by
some of the biggest and most respected names
in the Microsoft programming industry.
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Architecture, Analysis and Design
training Microsoft’s developers enjoy
Full lifecycle software development
 Real world knowledge and solutions on
Debugging and Performance tuning
Database design and development
 Learn from the best. Access the same
both current and cutting edge
technologies
 Flexibility in training options – onsite,
virtual, on demand
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3. Programming the Windows Runtime
by Example
http://bit.ly/winrtexample
http://winrtexamples.codeplex.com/
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4. Agenda
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WinRT and .NET
WebView
Simple: HTTP (REST)
OData (WCF Data Services)
Syndication
SOAP
Sockets
Mobile Services
Live Tiles
Consulting/Training

5. WinRT and .NET
 Most .NET network classes are available to
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Windows Store apps for Windows 8.1
Windows Store apps written in C# have
access to a limited .NET profile, in addition to
WinRT components provided via projection
Many network components have been
moved into WinRT (i.e. the HttpClient)
Other features include proxies that generate
pure .NET code as a function of the IDE (i.e.
“add service reference”
We’ll focus on C# but the WinRT components
are valid for C++ and JavaScript too
Consulting/Training

6. WebView Control
 Internet Explorer 11 control
 Direct Composition surface so it can be
translated/transformed and overlaid (this
wasn’t the case in Windows 8, only 8.1)
 Capable of rendering SVG and WebGL
 Interoperability with the Windows Store
app (can call to scripts on the page and
vice versa)
 Navigation methods (history, journal)
built-in
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7. WebView Control
this.WebViewControl.Navigate(new Uri(JeremyBlog));
this.WebViewControl.Navigate(new
Uri("ms-appx-web:///Data/Ellipse.html"));
// can also navigate to streams with a special URI handler in 8.1
this.WebViewControl.NavigateToString(HtmlFragment);
var parameters = new[] { "p/biography.html" };
this.WebViewControl.InvokeScript(
"superSecretBiographyFunction",
parameters);
Consulting/Training

8. The Embedded Browser: Using WebView
WebViewExamples from Chapter03 http://winrtexamples.codeplex.com/
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9. HttpClient
 WinRT as of 8.1
 Pure control over HTTP
 Viable for REST i.e. serialize/deserialize
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directly from JSON and/or XML
Control headers and manage response
as text, stream, etc.
GET, POST, PUT, and DELETE
Using HttpRequestMessage for custom
verbs, etc.
Base class for more specialized clients
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10. HttpClient (and a little JSON help)
private static readonly MediaTypeWithQualityHeaderValue Json = new
MediaTypeWithQualityHeaderValue("application/json");
string jsonResponse;
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(Json);
jsonResponse = await client.GetStringAsync(productsUri);
}
var json = JsonObject.Parse(jsonResponse);
Consulting/Training

11. Parsing a REST service with HttpClient and JSON
RESTService Example from Chapter05 http://winrtexamples.codeplex.com/
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12. Advanced HTTP Downloads
AdvancedHttpExample Example from Chapter10 http://winrtexamples.codeplex.com/
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13. OData (WCF Services)
 http://bit.ly/1gq5Obu
 Add-on for Visual Studio 2013
 Allows right-click and add
reference for service
 Generates the proxy and
structures using a data context
(similar to Entity Framework /
WCF RIA)
Consulting/Training

14. OData (WCF Data Services)
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15. OData Client Proxy
ServiceBase = new Uri("http://services.odata.org/OData/OData.svc",
UriKind.Absolute);
var client = new ODataService.DemoService(ServiceBase);
var categoryQuery = client.Categories.AddQueryOption("$expand",
"Products");
var categories = await Task<IEnumerable<ODataService.Category>>
.Factory.FromAsync(
categoryQuery.BeginExecute(result => { }, client),
categoryQuery.EndExecute);
Consulting/Training

16. Connecting to OData using WCF Data Services
ODataServiceExample from Chapter05 http://winrtexamples.codeplex.com/
Consulting/Training

17. Syndication (Atom/RSS)
 WinRT (mirrors the .NET equivalent
very closely)
 Parses Atom and RSS
 Suitable for both consuming and
publishing
 Also capable of converting
between formats (i.e. read an Atom
and serve an RSS)
Consulting/Training

18. Feed Syndication
private static readonly Uri CSharperImageUri = new Uri(
"http://feeds.feedburner.com/CSharperImage/", UriKind.Absolute);
var client = new SyndicationClient();
var feed = await client.RetrieveFeedAsync(CSharperImageUri);
var group = new DataFeed(feed.Id, feed.Title.Text, AuthorSignature,
feed.ImageUri.ToString(), feed.Subtitle.Text);
from item in feed.Items
let content =
Windows.Data.Html.HtmlUtilities.ConvertToText(item.Content.Text)
let summary = string.Format("{0} ...", content.Length > 255 ?
content.Substring(0, 255) : content)
Consulting/Training

19. Syndicating a Feed
SyndicationExample from Chapter05 http://winrtexamples.codeplex.com/
Consulting/Training

20. SOAP
 IDE provides similar interface to OData
 Uses WSDL to understand the shape of the service
 Considered a more complicated protocol but is
very widely used and has built-in security,
encryption, and other features that are beneficial
to the enterprise
 Generates a proxy (client) that is used to handle
the communications (RPC-based)
 Can also use channel factories to create clients
Consulting/Training

21. SOAP
Consulting/Training

22. SOAP Proxy (Generated Client)
var proxy = new WeatherSoapClient();
var result = await proxy.GetWeatherInformationAsync();
foreach (var item in result.GetWeatherInformationResult)
{
this.weather.Add(item);
}
Consulting/Training

23. SOAP Proxy (Channel Factory)
using (
var factory = new ChannelFactory<WeatherSoapChannel>(
new BasicHttpBinding(), new
EndpointAddress("http://wsf.cdyne.com/WeatherWS/Weather.asmx")))
{
var channel = factory.CreateChannel();
var forecast = await channel.GetCityForecastByZIPAsync(zipCode);
var result = forecast.AsWeatherForecast();
foreach (var day in result.Forecast)
{
day.ForecastUri = await this.GetImageUriForType(day.TypeId);
}
return result;
}
Consulting/Training

24. Connecting to SOAP-based Web Services
SoapServiceExample from Chapter05 http://winrtexamples.codeplex.com/
Consulting/Training

25. Sockets
 HTTP sits on top of TCP
 Sockets communicate at a lower level – TCP/UDP
 Newer WebSockets protocol for HTML5 uses HTTP
ports for a simpler sockets interface
 Use for real-time bi-directional communication
 Windows 8.1 can be a “server” … process isolation
makes it impractical except as demos, but works
fine as a client
Consulting/Training

26. WebSockets
WebSocketExamples from Chapter10 http://winrtexamples.codeplex.com/
Consulting/Training

27. TCP Sockets
SocketsGame from Chapter10 http://winrtexamples.codeplex.com/
Consulting/Training

28. Windows Azure Mobile Services
 Affectionately referred to as WAMS
 Literally right-click and “add Connected Service”
 Create simple CRUD and other types of services
using hosted SQL
 Create push notifications for live updates and
notifications within your app
Consulting/Training

29. Windows Azure Mobile Services
Consulting/Training

30. Windows Azure Mobile Services
Consulting/Training

31. Windows Azure Mobile Services
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32. Windows Azure Mobile Services
public static MobileServiceClient WinRTByExampleBookClient =
new MobileServiceClient(
"https://MOBILESERVICENAME.azure-mobile.net/",
"APPLICATION KEY");
// query
var table = App.WinRTByExampleBookClient.GetTable<Subscriber>();
var query = table.CreateQuery()
.OrderBy(x => x.LastName)
.ThenBy(x => x.FirstName);
Subscribers = query.ToIncrementalLoadingCollection();
// insert
var table = App.WinRTByExampleBookClient.GetTable<Subscriber>();
await table.InsertAsync(SubscriberBeingEdited);
Consulting/Training

33. Tiles and Notifications
Consulting/Training

34. Bonus Example - LiveConnect
LiveConnectExample from Chapter06 http://winrtexamples.codeplex.com/
Consulting/Training

35. Recap
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WinRT and .NET
WebView
Simple: HTTP (REST)
OData (WCF Data Services)
Syndication
SOAP
Sockets
Mobile Services
Live Tiles
Consulting/Training

36. Wintellect’s On-Demand
Video Training Solution
WintellectNOW.com
Subscribers Enjoy
Try It Free!
Use Promo Code:
LIKNESS-2013
Authors Enjoy
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Opportunities
Individuals | Businesses | Enterprise Organizations
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37. Questions?
jlikness@Wintellect.com
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