Book Image

The MVVM Pattern in .NET MAUI

By : Pieter Nijs
Book Image

The MVVM Pattern in .NET MAUI

By: Pieter Nijs

Overview of this book

In today's fast-paced world of modern software development, teams need to be efficient, productive, and capable of rapidly adapting to changes to deliver high-quality products, making it crucial for developers to write maintainable and easy-to-test code. The MVVM Pattern in .NET MAUI helps you to thoroughly explore the Model-View-View Model (MVVM) design pattern. The chapters show you how this pattern helps in structuring code to embrace the separation of concerns, allowing for loosely coupled user interface and application logic, which ultimately empowers you to write more robust, maintainable, and testable code. The book also highlights .NET MAUI's capabilities and features, and enables you to delve into the essential components within the framework that facilitate the application of the MVVM pattern. With the help of a sample application, this definitive guide takes a hands-on approach to walk you through both the essential and advanced usages of the MVVM pattern to ensure that you successfully apply the practical aspects of the pattern to your .NET MAUI projects. By the end of this book, you’ll have gained a comprehensive understanding of the MVVM design pattern and its relevance in the context of .NET MAUI, as well as developed the skills needed to successfully apply it in practice.
Table of Contents (20 chapters)
Free Chapter
1
Part 1: Key Concepts and Components
8
Part 2: Building a .NET MAUI App Using MVVM
13
Part 3: Mastering MVVM Development

Common data binding issues

One of the cornerstones of the MVVM pattern is data binding. It forms the link between your View and ViewModel, ensuring seamless communication between them. While data binding offers powerful capabilities, it’s also an area where developers often face challenges. This section aims to shed light on common data binding and ViewModel issues and how to troubleshoot them:

  • Typos and mismatched names: One of the simplest yet surprisingly common issues developers encounter is typos or mismatched property names. A small typo in your XAML markup or ViewModel code can disrupt the entire data binding process.
  • Incorrect binding modes: Data binding supports various modes such as OneWay, TwoWay, and OneTime, each with its own purpose, as we’ve seen in Chapter 4, Data Binding in .NET MAUI. Using the wrong mode can lead to unexpected behavior in your app.
  • Binding incompatible data types: Obviously, binding a property of type int to a property...