Chapter 3, XAML and Fluent C#

1. XAML is a markup language based on XML.
2. XAML is used in .NET MAUI for declaring layouts and controls.
3. Rather than writing in XAML, you can create your layouts and controls in C#.
4. We nest a layout or a control inside a layout by using the Children property.
5. An event handler is a method that is registered to an event in the UI.
6. The event handler is in the code-behind.