Reactive Extensions

This Would be the Next generation Event handling Mechanism specially with LINQ.

Learn about the first-class representation of event streams using observable sequences in Reactive Extensions

Channel 9 Videos for Learning - http://channel9.msdn.com/Series/Rx-Workshop/Rx-Workshop-Observables-versus-Events

MSDN - About the Reactive Extensions -

The Reactive Extensions (Rx) is a library for composing asynchronous and event-based

programs using observable sequences and LINQ-style query operators. Using Rx, developers

represent asynchronous data streams with Observables, query asynchronous data streams

using LINQ operators, and parameterize the concurrency in the asynchronous data streams

using Schedulers. Simply put, Rx = Observables + LINQ + Schedulers

Extracted from - http://msdn.microsoft.com/en-us/data/gg577609

MSDN - Beginner's Guide to the Reactive Extensions -

http://msdn.microsoft.com/en-us/data/gg577611