XL2000: How to Sum a Range of Cells Based on a Number Format

This article includes a sample Microsoft Visual Basic for Applications custom function that sums the values in a range of cells that are formatted with a specific custom number format.

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For more information about the support options that are available and about how to contact Microsoft, visit the following Microsoft Web site:http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS The following example creates a user-defined function that sums values based on a custom number format.

Preparing Sample Data

1. Create a new workbook and type the following data:

      A1: 100
      A2: 5
      A3: 100
      A4: 5
      A5: 100
   					

2. Press and hold down CTRL, and then click cells A1, A3, and A5 to select them.
3. On the Format menu, click Cells and, in the Format Cells dialog box, click the Number tab.
4. In the Category list, click Custom. In the Type box, type "F"0 (include the quotation marks), and then click OK.

NOTE: You can use different custom number formats with this example.

Creating the Function

1. Press ALT+F11 to start the Visual Basic Editor.
2. On the Insert menu, click Module.
3. In the module sheet, type the following code:

   Function SumFormat(CellRange)
   
      ' Loop through each cell in the range that is passed to this
      ' function.
      For Each Item In CellRange
   
         ' Check to see if the cell is formatted as "F"0.
         ' The additional quotation marks are necessary to look for
         ' actual quotation marks in the format string.
         If Item.NumberFormat = """F""0" Then
   
            ' Add the cell value to the variable total.
            total = total + Item.Value
   
         End If
   
      Next Item
   
      ' Set the results of total equal to the function name.
      SumFormat = total
   
   End Function
   					

4. On the File menu, click Close and Return to Microsoft Excel.
5. Select cell A7.
6. Type =SumFormat(A1:A5), and then press ENTER.
   
   Cell A7 contains the value 300 because cells A2 and A4 are not formatted with the custom number format of "F"0.

For more information about number formats, click Microsoft Excel Help on the Help menu, type about number formats in the Office Assistant or the Answer Wizard, and then click Search to view the topics returned.