The document discusses primitive and non-primitive data types in programming. Primitive types include integers and are declared with Dim and used directly. Non-primitive or object types include controls like TextBox, which must be declared as a type, instantiated with new, and then have properties and methods used, like setting the Text property. The document provides an example of declaring a TextBox named TextBox1, instantiating it, and accessing its Text property.

1. Variables - Primitive & Non-Primitive types

9. What is TextBox1.Text?

13. What is TextBox1.Text? behaviours / methods properties events TextBox1.Text