ASP.NET Web Forms
ASP.NET Web Forms is a Microsoft web application framework for building dynamic, server-side web applications using a drag-and-drop, event-driven model similar to Windows Forms. It abstracts web development complexities by providing a component-based architecture with server controls that render HTML and handle state management, enabling rapid development of data-driven websites. It was a core part of the original ASP.NET framework, primarily used with .NET Framework for enterprise web applications.
Developers should learn ASP.NET Web Forms when maintaining or modernizing legacy enterprise applications built on .NET Framework, as it was widely adopted in the early 2000s for its productivity in creating complex business applications with rich UI controls. It's useful for scenarios requiring rapid prototyping or when transitioning from desktop to web development due to its familiar event-driven paradigm, though modern alternatives are preferred for new projects due to better performance and scalability.