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

Handling User Input and Validation

User input forms the core of any interactive application. The way we manage this input, validate it, and respond to it directly influences the user experience of our application. While backend validation of user input is indispensable to maintaining data integrity, providing immediate and useful feedback on the frontend is equally important for a good user experience. In this chapter, we’re going to dig into the crucial topic of managing user input and validation within a .NET MAUI application utilizing the MVVM design pattern.

This chapter is organized into the following sections:

  • Implementing input validation on ViewModels
  • Visualizing validation errors with triggers
  • Prompts and alerts
  • Confirming or canceling navigation

With the aim of making our application more dynamic and interactive, this chapter will focus on handling user input effectively – ensuring a smooth and seamless user experience. Let’...