XAML
XAML (eXtensible Application Markup Language) is a declarative XML-based language developed by Microsoft for initializing structured values and objects, primarily used to define user interfaces in .NET applications. It allows developers to separate UI design from application logic, enabling tools like Visual Studio and Blend to provide visual designers for building interfaces. XAML is commonly associated with Windows Presentation Foundation (WPF), Universal Windows Platform (UWP), and Xamarin.Forms for creating desktop, mobile, and cross-platform apps.
Developers should learn XAML when building rich, data-driven user interfaces for Windows desktop applications using WPF or cross-platform mobile apps with Xamarin.Forms, as it provides a clean separation between UI and code-behind logic, enhancing maintainability and enabling designer-developer workflows. It is also essential for UWP app development on Windows 10/11, where it integrates with features like adaptive layouts and Fluent Design. Use cases include enterprise applications, multimedia software, and touch-enabled interfaces that require dynamic and responsive UI elements.