Advanced
Level 3 — Advanced
These lessons cover Async and Await, tasks and parallel programming, iterators and extension methods, operator overloading, XML literals, JSON and data access, Windows Forms, VBA for Office, VB6 history and migration, mixing Visual Basic and C#, testing, debugging and performance, modern .NET project structure and deployment, and the future of Visual Basic. Recommended: the Level 2 lessons, especially classes, interfaces, LINQ, and exceptions.