Making decisions with select case, Visual Basic Programming

Assignment Help:

The Select Case structure provides an option to If...Then...Else If for selectively executing one block of statements from amongst multiple blocks of statements. Any Select Case statement gives capability similar to the If...Then...Else statement, however it makes code more efficient & readable.

A Select Case structure works along with a single test expression that is evaluated once, at the top of the structure. Then the result of the expression is compared with the values for each Case in the structure. If there is match, block of statements linked with that Case is executed:

Select Case Document.Form1.CardType.Options(SelectedIndex).Text

Case "MasterCard" Display MC Logo Validate MCA count

Case "Visa" Display Visa Logo Validate Visa Account

Case "American Express"

Display AMEXCO Logo

Validate AMEXCO Account

Case Else Display Unknown Image Prompt Again

End Select

Notice that the Select Case structure evaluates an expression once at the top of the structure. On the contrary, the If...Then...ElseIf structure can evaluate a distinct expression for each Else If statement. You can replace an If...Then...Else If structure along with a Select Case structure only if each Else If statement evaluates the same expression.


Related Discussions:- Making decisions with select case

Data types - windows programming, Data types: The New data types were ...

Data types: The New data types were defined by using the typedef or #define statements. This was to allow the transition from 16 bit to 32 bit system. Some of the fresh data t

Repeating statements while a condition is true, Use the While keyword to ve...

Use the While keyword to verify a condition in a Do...Loop statement. You can verify the condition before you enter the loop (as illustrated in the following ChkFirstWhile instance

Explain dtd elements and dtd attributes, Problem 1. Describe the concep...

Problem 1. Describe the concept of exception in .Net environment 2. Explain the process of adding, updating and deleting records with an example 3. Explain DTD elements a

Introduction to controls and toolbars, INTRODUCTION TO CONTROLS AND TOOLBAR...

INTRODUCTION TO CONTROLS AND TOOLBARS The Visual Basic programming is an event driven programming. In the form objects the termed controls are placed. We can put the properties

Introduction to gui design and file handling, INTRODUCTION TO GUI DESIGN AN...

INTRODUCTION TO GUI DESIGN AND FILE HANDLING   The aim of the user interface design is to attain the user's goals. When the user's goals are met, the user is satisfied and the

Illustration of ccolordialog, ILLUSTRATION OF CCOLORDIALOG The construc...

ILLUSTRATION OF CCOLORDIALOG The constructor of the CColorDialog takes the initial parameter as the default color and the next parameter specifies how much the dialog is displa

Hierarchy of operation, what are the functions and the importance of hierar...

what are the functions and the importance of hierarchy operators

Simple programming, For this assignment you have to design and implement a ...

For this assignment you have to design and implement a VB.NET project which prepares a bill of payment due, given the purchase amount. The project models a typical purchase transac

Develop web pages which use vbscript, In this unit you have learned how to ...

In this unit you have learned how to develop Web pages which use VBScript. You have learned to insert logic to your Web pages as along with any other programming application. You h

Constant naming conventions, Earlier versions of VBScript had no mechanism ...

Earlier versions of VBScript had no mechanism for making user-defined constants. Constants, if utilized, were implemented as variables & distinguished from other variables by using

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd