This book provides a comprehensive guide to building cross-platform applications using .NET MAUI and C# Markup. Rather than relying on XAML, this approach focuses on constructing user interfaces entirely in C#, offering greater flexibility, consistency, and control over application structure and behavior. By combining modern development practices with a code-first approach, you will learn how to create applications that run across Android, iOS, macOS, and Windows from a single codebase.

The early chapters introduce the core concepts of .NET MAUI and C# Markup, including project structure, application lifecycle, and the fundamental building blocks of user interfaces. You will learn how views, layouts, and controls are combined to form responsive interfaces, and how to apply styling, theming, and reusable components to maintain consistency across your applications. Throughout these chapters, the emphasis is on understanding not only how to implement features, but also why they work the way they do.

As the book progresses, more advanced topics are introduced, including data binding, navigation, and application architecture. You will explore how to structure applications using patterns such as MVVM, manage state effectively, and connect user interfaces to underlying data models. Additional chapters cover platform features such as gestures, animations, and device capabilities, allowing you to create rich, interactive user experiences.

By the end of this book, you will have developed a solid understanding of how to design, build, and deploy cross-platform applications using .NET MAUI and C# Markup. Whether you are new to .NET MAUI or transitioning from XAML-based development, the knowledge and techniques presented in this book will provide a strong foundation for creating modern, maintainable applications.