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

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

Looping, how to make logic of o program and how to use loop

how to make logic of o program and how to use loop

Project, I have a project due tomorrow that I am really struggling in. Plea...

I have a project due tomorrow that I am really struggling in. Please help.

Refresh method - data control, The Refresh Method: The refresh method ...

The Refresh Method: The refresh method transfer to the first record in the record set. To invoke the refresh method follow the syntax which is as shown below: Form1.Data1.R

Benefits of using dynamic link library, Benefits of Using DLLs: The dy...

Benefits of Using DLLs: The dynamic linking has the following advantages which are as shown below: It saves memory and decreases the swapping. Many processes can use a s

Device contexts - windows programming, Device Contexts: The Device Con...

Device Contexts: The Device Context (DC) is represented by the data type Handle to Device Context (HDC). The HDC is a handle to somewhat you can draw on; it can be the whole s

Validation controls, Describe different validation controls of VB.net?

Describe different validation controls of VB.net?

Restricting the vocabulary - visual interface design, Restricting The Vocab...

Restricting The Vocabulary: The properly formed vocabulary is like an inverted pyramid. All easy to learn communication system follow this pattern. The canonical vocabulary in

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