Visual Basic.NET Programming. Beginner Lesson 9. Selection with If Statements
This is the ninth in a series of computer science video tutorials for beginners, about programming with Visual Basic.NET (VB.NET) in Visual Studio. In this lesson, you will learn how to execute one block of code or another, depending on the outcome of a test. This illustrates the second of the three fundamental programming constructs, sequence, selection and iteration. You will learn how to write an IF statement, either as a single line command, or as a block of code within IF and END IF. You will also learn how to use multiple ELSEIF clauses within an IF block, and the optional ELSE clause at the end. The video discusses the issue of case sensitivity when comparing one string with another, and explains how this case sensitivity can be removed by converting a string to upper case.