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Getting Started with WP7 Development: Learning Siverlight

This post aims to present a structured collection of resources for developers wanting to get started developing for Windows Phone 7 in Silverlight, but don’t have any Silverlight or WPF experience. I’m also aiming this post at peopleĀ  who’ve started developing for WP7 without too much WPF/Silverlight experience and would like to learn more about the framework to move on.

Why Silverlight?

Developing for Windows Phone 7 can be done using two frameworks: Silverlight and XNA. XNA is a framework targeting game development. Those who are looking to develop either games or graphically intensive applications are advised to use that framework.

Silverlight, on the other hand started off as a web application framework, a “web” light version of Windows Presentation Framework (WPF), the successor of Windows Forms. Microsoft decided to support Silverlight as the other application development framework on Windows Phone 7 next to XNA, specifically version 3.0 with some extra libraries. It’s safe to say that if one’s goal isn’t game development, the obvious (and easier) choice is to develop applications in Silverlight for WP7.

What is Silverlight?

Silverlight is a similar framework to Adobe Flash, allowing the developer to create applications that manipulate media, are interactive all built on the .NET platform. .NET developers will be familiar with lots of the libraries used, however Silverlight introduces several new concepts and libraries. With Out Of Browser support and Windows Phone 7 development announced, Silverlight is no longer just a web framework, but more an application development platform.

Some useful resources on understanding what Silverlight is:

Developer tools

Silverlight development can be done with Visual Studio 2008 and upwards, I’d recommend using Visual Studio 2010 – a free, express version is available for use. Expression Blend is an additional tool that makes creating the UI much easier.

If you’re planning on doing WP7 development, download the developer tools for WP7 which will either install the expression version of Visual Studio 2010 and a phone version of Expression Blend or if VS and Expression Blend are already installed, it will just add the new supported project types and the emulator.

Understanding how Silverlight Works

There are some key areas anyone from an OO background needs to understand to be able to develop with Silverlight.
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Streaming World Cup Tweets in Silverlight With a Few Lines of Code

The World Cup is on and there have been quite a few good Twitter mashups made for this event, probably the most popular being TweetBeat (and I’ve also developed one, Tweet For Your Team). In this post I’ll show how to build a simple service similar to TweetBeat using a publicly available real-time streaming service, Kwwika.

The application built in this short tutorial will be the following:

Why use a streaming service?

Getting tweets on a certain topic – in our case, the World Cup – can be done in three main ways:

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