Visual Basic: Windows Programming

Boolean Expressions in Visual Basic

A Boolean expression is one that can be evaluated as true or false. A Boolean expression can use relational operators such as < for less than, > for greater than, = for equal, and the logical operators AND and OR. In this lesson we will use the If and optional Else statements to decide which statements to execute.

Objectives:

Please study the material at each of the links below.

1. Microsoft Manual: Decision Structures
2. IF Statements
3. Top or bottom?
4. AND And OR
5. Left or Right?
6. Check Boxes and Radio Buttons
7. Boolean functions: isNumeric and isDate
8. Additional Examples

Glossary for boolean lesson