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

Dialog boxes in vb, DIALOG BOXES IN VB The two dialog boxes, namely, th...

DIALOG BOXES IN VB The two dialog boxes, namely, the message box and the input box are usually used in the Visual Basic. The message box is used for displaying the messages to

Indexing - visual basic, Indexing: In libraries, the card catalog is t...

Indexing: In libraries, the card catalog is the index. The three indices are used in the library. The Author, Subject and title are the 3 indices. Each index is relative. The

Check whether a number is palindrome or not, Function IsPalindrome(str) ...

Function IsPalindrome(str) Dim iStart,iEnd,ctr,blnPalin str=trim(str) blnPalin=true iEnd=len(str) iCnt=round(iEnd / 2) iStart=1 for ctr=1 to cint(iCnt) if(mid(str,iEnd,

Dictionary, how to make dictionary in vb using ms access

how to make dictionary in vb using ms access

Explain Databound Controls, Databound Controls - A controls use to display ...

Databound Controls - A controls use to display the contents of table using Data Control , have to bound each Control to the specific field and the controls are Known as the Data Bo

Vbscript constants, A constant is a meaningful name which takes the place o...

A constant is a meaningful name which takes the place of a number or string and never alters. VBScript described a number of intrinsic constants. You can get thorough information r

Adding handlers with class wizard, Adding Handlers With Class Wizard: ...

Adding Handlers With Class Wizard: Whenever a handler is added, the class wizard places the prototype for the message handler in the header (.H) file. It gives a skeleton hand

Select case - control statement, Select Case: The Select Case is used ...

Select Case: The Select Case is used for handling the multiple paths. The Select Case computes the expression and depending on the value of the equivalent Case statement execu

Fixed length strings, Fixed length strings: The Fixed length strings ar...

Fixed length strings: The Fixed length strings are declared by identifying the size of the string. For illustration to give a length of 20 for the string place, the declarati

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