XL: Visual Basic Example Using If and Case Statements

• Microsoft Excel for Windows 95, version 7.0
• Microsoft Excel for Windows, version 5.0, 5.0c
• Microsoft Excel for the Macintosh, version 5.0, 5.0a
• Microsoft Excel 97 for Windows
• Microsoft Excel 98 Macintosh Edition

SUMMARY

In Microsoft Visual Basic for Applications, there are two statements that can be used 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, while the Select Case statement executes one of several of statements based on the value of an expression.

MORE INFORMATION

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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)
      ' 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)

      ' 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

REFERENCES

For more information about controlling program flow, click Answer Wizard on the Help menu and type:

   tell me about conditional programming

Microsoft Press: "Microsoft Excel/Visual Basic Programmer's Guide", version 7.0, Chapter 3, "Controlling Program Flow"

In Microsoft Excel version 5.0, click Contents on the Help menu, click Programming With Visual Basic, then click the Search button and type:

   if

   -or-

   case

   ARTICLE-ID: Q163435
   TITLE     : VBA: Programming Resources for Visual Basic for
               Applications