Patterns

Rockford Lhotka is the Principal Technology Evangelist for Magenic, a company focused on delivering business value through applied technology and one of the nation's premiere Microsoft Gold Certified Partners. Rocky is the creator of CSLA .NET, one of the most widely used development frameworks…

In this multi-part blog series, Rob Bagby will be illustrating the use of various design patterns in Silverlight development.  The patterns covered in the series are Repository, Pipeline, Service Agent and Model View ViewModel (MVVM).  In this screencast, Rob will implement the Pipeline…

In this multi-part blog series, Rob Bagby will be illustrating the use of various design patterns in Silverlight development.  The patterns covered in the series are Repository, Pipeline, Service Agent and Model View ViewModel (MVVM).  In this screencast, Rob will implement the…

In this multi-part blog series, Rob Bagby will be illustrating the use of various design patterns in Silverlight development.  The patterns covered in the series are Repository, Pipeline, Service Agent and Model View ViewModel.  In this screencast, Rob will set up the project, build…

Mario Cardinal and Aaron Kowall discuss how to easily test in an autonomous way an application conceived with modular abstractions such as the "layer". Mario and Aaron discuss how to partition the concerns of the application into layers and best practices regarding…

Extreme ASP.NET Makeover: Mr. Escher, Your Software is Ready –Refactoring Notification The circular dependency problem between Pages and Users is due to each class implementing part of a larger notification feature. Once again this was not obvious when the two classes were coupled together via…

Extreme ASP.NET Makeover: Mr. Escher, Your Software is Ready –Circular Dependency Cycle The only reason for Users to reference Host is to raise events on behalf of the Users class. We can quickly and easily remove this dependency by allowing Users to raise its own events, as shown in Figure 4.…

Extreme ASP.NET Makeover: Mr. Escher, Your Software is Ready –Host Users Dependency Cycle Going Around in Circles We successfully refactored away Host’s dependency on Settings.Instance by allowing the IoC container to pass Host an instance of ISettings via its constructor. It seems like a…

Extreme ASP.NET Makeover: Mr. Escher, Your Software is Ready –Dependency As we saw, the Host class delegates to a whole host of Singletons (bad pun intended), including Settings, Users, Pages, Snippets, NavigationPaths, and AuthWriter. Each of these Singletons refers to other Singletons, creating…

Extreme ASP.NET Makeover: Mr. Escher, Your Software is Ready -Overview We’re now on the ninth installment of Extreme ASP.NET Makeover. In part 8, we discovered that the ScrewTurn Wiki codebase suffers from dependency problems. Tight coupling of implementation classes caused by singletons and…