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Bing it on, Reactive Extensions
Building a quick search app from scratch in WPF with Rx and Bing.com
What is Rx?!
• Library – mainly consisting of extension methods
• Developed by Microsoft• Aims to simplify event handling and async
operations• LINQ-friendly
Requirements
• .NET 3.5SP1 (4 or newer preferred)• Windows Phone 7 (7.1 or newer preferred)• Silverlight 4 (5 or newer preferred)• Also available for JavaScript
Why should I use it?
• Simplifies async queries (and other operations)
• Makes async and event handling code (much) easier to unit-test
• Less code – simpler maintenance• Less bugs
How do I get it?
• Download from MSDN• Install with NuGet Package Manager• Install via Visual Studio Extension SDK
Basics
• IObservable<T>, IObserver<T>• Similar to IEnumerable<T> and
IEnumerator<T>• Main difference : Data in motion vs Data in
memory
Key features
• Compose two or more observables– Pipeline them– Join them– …
• Use one of the many pre-built modifiers• Build your own modifiers
References
• http://www.introtorx.com/• http://rxwiki.wikidot.com/101samples
Contact
Andrei RineaWorking at IBM as a Senior Software Developer
• B : http://blog.andrei.rinea.ro • L : http://www.linkedin.com/in/andreirinea • T : https://twitter.com/AndreiR23• F : https://www.facebook.com/andrei.rinea
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