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How to use the IF THEN ELSE statement and the SELECT CASE statement in examples written in Visual Basic for Excel


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Summary

In Microsoft Visual Basic for Applications, there are two statements that you can use to perform a conditional test: an If...Then...Else statement or a Select Case statement. The If...Then...Else statement executes a group of statements based on the value of an expression, and the Select Case statement executes one of several statements based on the value of an expression.

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More information

Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. The following sample macros show how to use the If...Then...Else and the Select Case statements.

Sample Macro Using If...Then...Else Statement

   Sub Using_IF()
      ' Dimension the variable.
      Dim x As Integer
      ' Place a value in x.
      x = Int(Rnd * 100)
      ' Display the value of x.
      MsgBox "The value of x is " & x & "."
      ' Test to see if x less than or equal to 10.
      If x <= 10 Then
         ' Display a message box.
         MsgBox "X is <=10"
      ' Test to see if x less than or equal to 40 and greater than 10.
      ElseIf x <= 40 And x > 10 Then
         MsgBox "X is <=40 and > 10"
      ' Test to see if x less than or equal to 70 and greater than 40.
      ElseIf x <= 70 And x > 40 Then
         MsgBox "X is <=70 and > 40"
      ' Test to see if x less than or equal to 100 and greater than 70.
      ElseIf x <= 100 And x > 70 Then
         MsgBox "X is <= 100 and > 70"
      ' If none of the above tests returned true.
      Else
         MsgBox "X does not fall within the range"
      End If
   End Sub

				

Sample Macro Using Select Case Statement

   Sub Using_Case()
      ' Dimension the variable.
      Dim x As Integer
      ' Place a value in x.
      x = Int(Rnd * 100)
      ' Display the value of x.
      MsgBox "The value of x is " & x & "."
      ' Start the Select Case structure.
      Select Case x
         ' Test to see if x less than or equal to 10.
         Case Is <= 10
            ' Display a message box.
            MsgBox "X is <=10"
         ' Test to see if x less than or equal to 40 and greater than 10.
         Case 11 To 40
            MsgBox "X is <=40 and > 10"
         ' Test to see if x less than or equal to 70 and greater than 40.
         Case 41 To 70
            MsgBox "X is <=70 and > 40"
         ' Test to see if x less than or equal to 100 and greater than 70.
         Case 71 To 100
            MsgBox "X is <= 100 and > 70"
         ' If none of the above tests returned true.
         Case Else
            MsgBox "X does not fall within the range"
      End Select
   End Sub
				

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References

For more information about using Select Case statements, in the Visual Basic Editor, click Microsoft Visual Basic Help on the Help menu, type Using Select Case Statements in the Office Assistant or the Answer Wizard, and then click Search to view the topic.
For more information about the IF statement, in the Visual Basic Editor, click Microsoft Visual Basic Help on the Help menu, type Using If...Then...Else Statements in the Office Assistant or the Answer Wizard, and then click Search to view the topic.
For additional information about getting help with Visual Basic for Applications, please click the article number below to view the article in the Microsoft Knowledge Base:
226118 Programming resources for Visual Basic for Applications
For more information about how to use the sample code in this article, click the article number below to view the article in the Microsoft Knowledge Base:
212536 How to run sample code from Knowledge Base articles

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Keywords: kbdtacode, kbhowto, kbprogramming, KB213630

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Article Info
Article ID : 213630
Revision : 7
Created on : 9/18/2011
Published on : 9/18/2011
Exists online : False
Views : 388