Blog: MyToolkit

How to implement and register a custom dependency resolver in ASP.NET MVC 5

March 6, 2015, (updated on March 26, 2015), Software Development

The ASP.NET MVC 5 framework supports the integration of 3rd party dependency injection frameworks. This can be done by implementing the IDependencyResolver interface and registering an instance of the interface on application startup. The registration is made in the Application_Start method which can be found in the Global.asax.cs file: protected void Application_Start() { ... var compositionContext = new CompositionContext(); compositionContext.AddPart<IMyService, MyServiceImpl>(); // TODO: Register your own services here DependencyResolver.SetResolver(new MyDependencyResolver(compositionContext)); } Most dependency injection frameworks provide a NuGet package which already contains an IDependencyResolver implementation (for example Ninject.MVC3). However, because I wanted to use the IoC container from my own […] Read more...

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A transparent undo/redo mechanism for XAML applications

February 23, 2015, (updated on March 11, 2015), Software Development

In one of my recent projects, I had to implement an undo/redo mechanism for an observable object graph. The usual approach to this problem is to implement commands which operate on the object graph and provide Do() and Undo() methods. The problem was, that a great portion of the business logic was already implemented and was not command-based. This is why I had to find a solution which works transparently on the property change events of an object graph whose objects implement the INotifyCollectionChanged interface and use the ObservableCollection class for collection properties. The solution to the problem was to […] Read more...

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