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Kumar Vishal, Lovely Professional University Unit 6: VB Control Structure

Unit 6: VB Control Structure

CONTENTS

Objectives
Introduction
6.1 Structure
6.2 If-else Blocks
6.2.1 If Block
6.2.2 Elself Clauses
6.3 Do While Loops
6.4 While-Wend
6.5 For... Next Loops
6.5.1 Declaration of Control Variables
6.5.2 Nested For... Next Loops
6.6 Select Case Blocks
6.7 Summary
6.8 Keywords
6.9 Self Assessment Questions
6.10 Review Questions
6.11 Further Readings

Objectives

After studying this unit, you will be able to:
• Understand the structure of VB control and if else statement
• Discuss about the do while loops and next loops
• Explain about the case blocks.

Introduction

We have seen many examples of the usefulness of subscripted variables. They are essential for
writing concise solutions to many programming problems. Because of the utility that subscripts
provide, Visual Basic also provides for array of labels, text boxes, and buttons. Since labels, text
boxes, and buttons are referred to generically in Visual Basic as control, array of these objects
(or of any other control ) are called.

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