XL: Visual Basic Macro Examples for Working with Arrays

ID: Q149689

The information in this article applies to:

• Microsoft Excel for Windows, version 5.x
• Microsoft Excel for Windows 95, version 7.0
• Microsoft Excel 97 for Windows
• Microsoft Excel for the Macintosh, version 5.0, 5.0a
• Microsoft Excel 98 Macintosh Edition

SUMMARY

This article contains sample Microsoft Visual Basic for Applications procedures that you can use to work with several types of arrays.

MORE INFORMATION

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals 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 needs. If you have limited programming experience, you may want to contact the Microsoft fee-based consulting line at (800) 936-5200. For more information about the support options available from Microsoft, please see the following page on the World Wide Web:

   http://www.microsoft.com/support/supportnet/refguide/

To Fill an Array, and Then Copy It to a Worksheet

1. Open a new workbook and insert a Visual Basic module sheet.

2. Type the following code on the module sheet.

      Sub Sheet_Fill_Array()
         Dim myarray As Variant
         myarray = Array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
         Range("a1:a10").Value = Application.Transpose(myarray)
      End Sub

4. On the Tools menu, Click Macro.

5. In the Macro dialog box, click Sheet_Fill_Array, and then click Run.

To Take Values from a Worksheet and Fill the array

1. Input values on Sheet1 in cells a1:a10.

2. On a Visual Basic module sheet, type the following code:

      Sub from_sheet_make_array()
         Dim thisarray As Variant
         thisarray = Range("a1:a10").Value

         counter = 1                'looping structure to look at array
         While counter <= UBound(thisarray)
            MsgBox thisarray(counter, 1)
            counter = counter + 1
         Wend
      End Sub

4. On the Tools menu, click Macro.

5. In the Macro dialog box, click from_sheet_make_array, and then click

   Run.

To Pass and Receive an Array

1. On a module sheet, type the following code:

      Sub pass_array()
         Dim thisarray As Variant
         thisarray = Selection.Value
         receive_array (thisarray)
      End Sub

      Sub receive_array(thisarray)
         counter = 1
         While counter <= UBound(thisarray)
            MsgBox thisarray(counter, 1)
            counter = counter + 1
         Wend
      End Sub

3. On the Tools menu, click Macro.

4. In the Macro dialog box, click pass_array, and then click Run.

To Compare Two Arrays

1. Create two named ranges on Sheet1. Name one "range1"(without the

   quotation marks) and the other "range2"(without the quotation marks).

   For example, highlight the cell range A1:A10 and name it range1;
   highlight the cell range B1:B10 and name it range2.

      Sub compare_two_array()
         Dim thisarray As Variant
         Dim thatarray As Variant

         thisarray = Range("range1").Value
         thatarray = Range("range2").Value
         counter = 1
         While counter <= UBound(thisarray)
            x = thisarray(counter, 1)
            y = thatarray(counter, 1)
            If x = y Then
               MsgBox "yes"
            Else MsgBox "nope"
            End If
            counter = counter + 1
         Wend
      End Sub

4. On the Tools menu, click Macro.

5. In the Macro dialog box, click compare_two_array, and then click Run.

   You will see one message box for every comparison.

To Fill an Array

1. Type the following code on a module sheet.

      Function array_fill()
         array_fill = Application.Transpose(Array(1, 2, 3))
      End Function

   (without the quotation marks), and then press CTRL+SHIFT+ENTER. In
   Microsoft Excel for the Macintosh, press COMMAND+RETURN.

To Fill an Array and Add up the Array

1. On a module sheet, type the following code:

      Function test(x As Object) As Integer
         For Each mycell In x
            test = test + mycell.Value
         Next
      End Function

3. In cell A12 type "=test(cell_range)" (without the quotation marks),

   and then press CTRL+SHIFT+ENTER. In Microsoft Excel for the
   Macintosh, press COMMAND+RETURN.

To Fill a Dynamic Array

1. On a module sheet, type the following code:

      Sub fill_array()

         Dim thisarray As Variant
         number_of_elements = 3     'number of elements in the array

        'must redim below to set size
         ReDim thisarray(1 To number_of_elements) As Integer
        'resizes this size of the array
         counter = 1
         fillmeup = 7
         For counter = 1 To number_of_elements
            thisarray(counter) = fillmeup
         Next counter

         counter = 1         'this loop shows what was filled in
         While counter <= UBound(thisarray)
            MsgBox thisarray(counter)
            counter = counter + 1
         Wend

      End Sub

3. In the Macro dialog box, click fill_array, and then click Run.

NOTE: Changing the variable "number_of_elements" will determine the size of the array.

Additional query words: 5.00 5.00a 5.00c 7.00 8.00 xl97 copy paste visual basic editor

Keywords          : kbprg kbdta kbdtacode PgmHowto KbVBA 
Version           : WINDOWS: 5.0, 5.0c, 7.0, 97; MACINTOSH: 5.0, 5.0a, 98
Platform          : MACINTOSH WINDOWS
Issue type        : kbhowto

Last Reviewed: May 18, 1999