Introduction

This chapter introduces the common usage of MVVM pattern with CommunityToolkit.Mvvm.

Model

Model is basically a data shape, it describes the entity. A model should pure with a bunch of properties only.(May include implicit conversion operators.)

ViewModel

ViewModel is the mediator for Model and View.

Isolates the two, making View completely ignorant to Model.(Model surely don't know about View, it's just a pure shape)

It represents the status of a Model instance as a Observable with extra logic for creating or manipulating itself.

View

• defining properties to store necessary data for displaying on UI.
• defining commands to be triggered when interacting with users.
• every data type represented as observable should be a ViewModel.