exit code - Page 604 - Developer IT

WS-Eventing for WCF (Indigo)

This article describes the design, implementation and usage of the WS-Eventing for distributed applications driven by new MS communication model WCF (Windows Communication Foundation)

Using T4 to generate a wrapper for a WCF Client

Android NDK r3

The third release of the Android Native Development Kit (NDK) is now available for download from the Android developer site . It can be used to target devices...

TypeForwardedToAttribute

Walkthrough: Forwarding a type from one assembly to another by using the TypeForwardedToAttribute attribute.

Do you use unit tests at work? What benefits do you get from them?

I had planned to study and apply unit testing to my code, but after talking with my colleagues, some of them suggested to me that it's not necessary and it has a very little benefit. They also claim that only a few companies actually do unit testing with production software. I am curious how people have applied unit testing at work and what benefits they are getting from using them, e.g., better code quality, reduced development time in the long term, etc.

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Backup SQL server with relative file path and progress

This class will allow you to asynchronously backup a database while also getting progress, message, and error notifications.

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Web-Application Framework - Catharsis - Part II

Catharsis web-app framework

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Using Telerik RadControls With DotNetNuke. Complete Rating And Comments Solution

This tutorial shows usage of Telerik controls in DotNetNuke. It lead you through a process of creation rating / comments solution for a complete DotNetNuke page or any other content identified by URL.

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Campfire One: GWT 2.0 with Speed Tracer (pt. 1)

Campfire One: GWT 2.0 with Speed Tracer (pt. 1) Video footage of Google Campfire One held on 12/8/09. From: GoogleDevelopers Views: 8037 12 ratings Time: 15:08 More in Science & Technology

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FlyWeight

You are developing some gaming software. Your write Web client and on each of response you are parsing entire XML to get your game Units. You have some set of types of Units, for example 50 different animals, but when you parse your XML you can get dozens of instances. Memory issue? - FLYWEIGHT will

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Javascript and Shortcut Keys

A framework for capturing specific key combinations

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Singleton

Imagine that you need some global logging system in your application.You need to be able log your messages to some file at any point of your application, but also you need to numerate your messages.How can you accomplish this? - SINGLETON

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A Curve Custom Control for Windows Mobile

This article describes/provides a 2D Curve Custom Control for Windows Mobile

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MVP: Updating View’s binding asynchronously with the SynchronizationContext object

MVP: Updating View’s binding asynchronously with the SynchronizationContext object.

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NullTransport for WCF

This article describes design, implementation and the usage of the custom in-process transport for Microsoft Windows Communication Foundation (WCF) model.

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Program for Watermarking an Image

To uniquely identify the images from our storage we use watermarking them with some text (usually company / portal name)

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Simple AJAX File Upload

A simple approach to enable the FileUpload control to work with Microsoft AJAX.

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Check whether JavaScript and Cookie are enabled using custom control

A custom control for checking whether JavaScript and Cookie are enabled in the client browser

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C#/.NET Command Line Argument Parser Reloaded

Easy to use yet powerful command line argument parser, which also creates usage and parameter information for the user.

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WPF Draggable Label

WPF label control that can be dragged and resized at runtime.

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Real Time position display software model for Google maps using C#.net and Microsoft XNA framework

It describes how can we display the position of any object on the map in real time

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ListBox Styling (Part 3 - Additional Templates) in Expression Blend & Silverlight

Explanation & examples of the Additional Templates & Generated Content of a ListBox

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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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