crazy code - Page 587 - Developer IT

Make your waves easier to find with savedSearchHook

One of my favorite features of Wave is "saved searches." When I use a search query that I want to remember to check later, I click "save search...

A Sample Silverlight 4 Application Using MEF, MVVM, and WCF RIA Services - Part 2

Part 2 of a series describing creation of a Silverlight business application using MEF, MVVM Light, and WCF RIA Services

WS-Transfer for WCF (Indigo)

The article describes the design, implementation, and usage of WS-Transfer for Indigo-driven applications.

Asp.Net C# JQuery base Web Application for Rapid Web Presence

visinia can be used expand to create a website through module drag drop

MicroApps from The Guardian and Google AppEngine - Both ready for business

This post is another entry in our on-going series of guest posts from App Engine developers. Today we have the Guardian reporting in on how they're using App...

User Customizable ToolStrip with Drag and Drop

With this .NET library, you can implement a customize toolbar function in your application.

Windows Phone 7 View Model Style Video Player

A Designer/Developer collaboration in an example of a Windows Phone 7 View Model Style Video Player

BrainVita Game using JQuery

Using JQuery features to implement BrainVita Game

RepositoryUnit: Useful Generic Repository

The aim of this article is to introduce a way of useful realization of repository pattern based on Entity Framework.

Silverlight 4: How can I create customized OOB Window?

In this article, I will guide you to create a simple customized OOB Window Application in Silverlight 4 RC. After the end of this tutorial, you will be able to create a Customized OOB Window in Silverlight 4.

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Using WMI to retrieve processor information in C#

This article demonstrates how to use WMI (Windows Management Instrumentation) in C#, to retrieve several bits of information about the processor.

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ASP.NET application and page life cycle

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ImageFan

A lightweight image viewer for .NET 2.0, supporting multi-core processing

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Tradacoms Order 9 Reader

A simple Class to Read EDI Tradacoms Order 9

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Interview with Issam Lahlali, one of the CppDepend tool creators

The article presents answers to the questions asked to Issam Lahlali that concern the developer tool CppDepend.

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Invoking events without worrying about cross-thread exceptions

Eliminate InvalidOperationException on events called across thread that change control properties

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Introducing .NET 4.0 Parallel Programming

Introduces the Parallel Programming Features of .NET 4.0

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Web Animations - the next generation

Web Animations - the next generation The GDL event page for this event: developers.google.com Ask and vote for questions at www.google.com Browser developers are designing the next generation of animation features that will enhance HTML5 with rich, powerful new animation primitives. Designers and web app developers will all benefit from improved methods of animating content. Hear from developers of Google Chrome and Mozilla Firefox how this works, and learn how to try out the new animation features now in your favorite browser. From: GoogleDevelopers Views: 0 3 ratings Time: 30:00 More in Science & Technology

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Item Framework for Handling INamingContainer

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C#-like expression evaluator and type converter

Convert types, parse and evaluate expressions in runtime, in .NET 2.0

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"Collection Wrapper" pattern - is this common?

- by Prog

A different question of mine had to do with encapsulating member data structures inside classes. In order to understand this question better please read that question and look at the approach discussed. One of the guys who answered that question said that the approach is good, but if I understood him correctly - he said that there should be a class existing just for the purpose of wrapping the collection, instead of an ordinary class offering a number of public methods just to access the member collection. For example, instead of this: class SomeClass{ // downright exposing the concrete collection. Things[] someCollection; // other stuff omitted Thing[] getCollection(){return someCollection;} } Or this: class SomeClass{ // encapsulating the collection, but inflating the class' public interface. Thing[] someCollection; // class functionality omitted. public Thing getThing(int index){ return someCollection[index]; } public int getSize(){ return someCollection.length; } public void setThing(int index, Thing thing){ someCollection[index] = thing; } public void removeThing(int index){ someCollection[index] = null; } } We'll have this: // encapsulating the collection - in a different class, dedicated to this. class SomeClass{ CollectionWrapper someCollection; CollectionWrapper getCollection(){return someCollection;} } class CollectionWrapper{ Thing[] someCollection; public Thing getThing(int index){ return someCollection[index]; } public int getSize(){ return someCollection.length; } public void setThing(int index, Thing thing){ someCollection[index] = thing; } public void removeThing(int index){ someCollection[index] = null; } } This way, the inner data structure in SomeClass can change without affecting client code, and without forcing SomeClass to offer a lot of public methods just to access the inner collection. CollectionWrapper does this instead. E.g. if the collection changes from an array to a List, the internal implementation of CollectionWrapper changes, but client code stays the same. Also, the CollectionWrapper can hide certain things from the client code - from example, it can disallow mutation to the collection by not having the methods setThing and removeThing. This approach to decoupling client code from the concrete data structure seems IMHO pretty good. Is this approach common? What are it's downfalls? Is this used in practice?

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- by Prog

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