Design Considerations of Public Functions
Writing a function is an act of design. You must choose the placement (both physical and logical), signature, and name of the function carefully. Most people understand vaguely that functions should...
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Yodelay Updated
Yodelay has been updated. I’ve modified the Regular Expression tester so that it supports n-number of test contexts with a single expression. In addition, you can search regexlib.com for a useful...
View ArticleObservableCollectionHandler & ChangeTracker
When working with the ObservableCollection or INotifyCollectionChanged interface, it is common to see code like the following: void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs...
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Martin Fowler on Why Agile Works
The intro is in French, but the talk is in English. Enjoy! <!-- Pourquoi, pas comment USI 2010 : conférence incontournable du l'IT en FranceRendez-vous annuel des Geeks et des Boss souhaitant une...
View ArticleSneaking Up on Reactive Extensions
I saw Matthew Podwysocki speak on Reactive Extensions at the most recent DC Alt .NET meeting. I’ve heard some buzz about Reactive Extensions (Rx) as Linq over Events. That sounded cool, so I put the...
View ArticleSmart Enumerations, or Using Flyweight to Beat Enums Into Submission
System.Enum is a powerful type to use in the .NET Framework. It’s best used when the list of possible states are known and are defined by the system that uses them. Enumerations are not good in any...
View ArticlePractical advice for observing the LSP and DIP: Use the Most AbstractType...
This post is about concretizing the relationship between two abstract design principles and providing a piece of practical advice The goal of the Liskov Substitution Principle is to make sure that...
View ArticleAPI Design: Batch Operations
When designing a batch API, it is important that the return results be relatable to the individual arguments that were asked to be processed. Consider an API that takes a list of objects to perform an...
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Onion Architecture: An Opinionated Approach Part 2, Anemic Data Models
Anemic Data Model is my term for a domain model indicating entities and their relationships to other entities, but having little or no business behavior. It basically serves as a contract for a data...
View ArticleDependencies and Maintenance Cost
I was speaking with a colleague about the importance of reducing dependencies. I’ll reproduce here some work that we did to streamline some code and make it easier to test and maintain. Consider this...
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