All tagged xamarin mvvm

Xamarin Forms MVVM - ObservableCollection

Eduardo Rosas Osorno
Xamarin

In the last few posts, I've been introducing the usage of certain interfaces that help use the MVVM pattern in Xamarin Forms applications. You can even find all that code and identify what I did in each post by switching branches in this repository.

In this post, I'll be talking about the ObservableCollection<T>, which isn't an interface, but does implement the INotifyCollectionChanged interface, which behaves similarly to the INotifyProeprtyChanged interface, and helps integrate notifications for when elements are added, deleted or updated within a collection.

Xamarin Forms MVVM - ICommand

Xamarin Forms MVVM - ICommand

Eduardo Rosas Osorno
Xamarin

In the previous post, we talked about the INotifyPropertyChanged, and I gave a small introduction about the MVVM architectural pattern, and how it will allow you to structure your code in a way that will make it easy to maintain, easy to scale and easy to reuse.

This post will be about the ICommand interface. If you have created Xamarin Forms applications before, this interface will help you replace all the event handlers you have in the code behind for button clicks (and other events) for code that you can now move over to your ViewModel.