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The basic model for MapReduce derives from the map and reduce concept in functional languages like Lisp. In Lisp, a map takes as input a function and a sequence of values and applies the function to each value in the sequence. A reduce takes as input...
I wrote the stocky application more than a year ago as a research project aimed at proving that using WPF we can separate presentation metadata (XAML) from program logic. The goal was to provide the Duet team at SAP with a document reference sample for...
I've been having mixed feeling for quite some time now regarding LINQ. Sure it can make working with data sources a lot easier and it can definately save a lot of code... But, what happens with the following C# foreach statement List < KeyValuePair...
On the previous post in this series we looked into the DataModel component in our architecture in detail and defined an abstract DataModel base class to derive our models from. On this post we'll implement a concrete data model to represent a stock's...
WPF, Microsoft's not-so-new-anymore UI technology offers new capabilities allowing both developers and designers to work together to achieve a stunning experience for their applications. Power, however, does not come without complexity, and WPF does...
Now that's pretty cool... A .NET port of the Quake 3 Arena source code . If you liked this entry, feel free to visit www.developerzen.com to read more similar articles. Readers of my blog are invited to join me on Twitter and Facebook
I have a short introduction to Powershell presentation at SAP today and to make things interesting I made the presentation slides using a Powershell script rather than using Powerpoint (I actually stole and modified this ). So, here are my presentation's...
A new site dedicated to the launch events of Windows 2008 , Visual Studio 2008 and SQL Server 2008 has been unveiled at http://www.heroeshappenhere.com/ Currently it contains some videos of Microsoft professional sharing their feelings about the launch...
I'm doing a 1 hour Introduction to LINQ session at SAP tomorrow. Below is a link to the presentations and I'd be happy to hear comments about it if anyone has any... Technorati Tags: .NET 3.0 , LINQ , Language Integrated Query © 2007 Eran Kampf...
The Singleton implementation in the snippet I gave works fine as a lazy, thread-safe Singleton as it ensures only one thread can create the instance. However, there's a big performance hit caused by the fact that we acquire a lock each time the Singleton...
I decided to start a new column gathering all sorts of "what's wrong with this code?" snippets. Why? Its fun. Its good for interview questions. It starts discussions. More interesting than just talking (or writing) to myself. So, here's what I plan: I...
Josh Smith ahs written a nuch of very comprehensive overview posts on WPF topics: Overview of routed events in WPF Overview of dependency properties in WPF Overview of attached properties in WPF A five-mile overview of WPF © 2007 Eran Kampf. This Feed...
A lot of developers are mistaking XAML to be an exclusively WPF technology. The truth is, that as it's name (Extensible Application Markup Language) suggests, it can be used to represent all kinds of application mechanisms, not just the UI. David Hill...
Two engineers from Microsoft Switzerland, Ronnie Saurenmann and Ruihua Jin, have put together this 90-page hands-on lab that takes you through the process of building a business application that has the same UI as Outlook 2007 using Expression Blend....
It seems there's a lot of new stuff about Acropolis from TechEd: Acropolis documentation is now online Forums Blogs Acropolis Team Blog Kathy Kam's blog - PM on the Acropolis team Dennis "D.C." Dietrich's blog David Hill – Sr. PM\Architect on the Acropolis...
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