XL97: Run-Time Error Using Macro to Add Custom List

• Microsoft Excel 97 for Windows

SYMPTOMS

In Microsoft Excel 97, if you run a Visual Basic for Applications macro that attempts to add a custom list to the application, you may receive the following error message:

   Run-time error '1004':
   Method 'AddCustomList' of object '_Application' failed

CAUSE

This problem occurs if the following conditions are true:

• The ListArray argument of the AddCustomList method directly refers to a range of cells in a worksheet, for example:

        Application.AddCustomList ListArray:=Range("A1:A4")
  

      -and-
  

• The custom list you want to add is identical to an existing custom list. For example, if the range of cells contains the words “Alpha,” “Bravo,” “Charlie,” and “Delta,” and a custom list containing these four words already exists, the problem occurs.

WORKAROUND

Microsoft provides examples of Visual Basic for Applications procedures 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. The Visual Basic procedures in this article are provided 'as is' and Microsoft does not guarantee that they can be used in all situations. While Microsoft support engineers can help explain the functionality of a particular macro, they will not modify these examples to provide added functionality, nor will they help you construct macros to meet your specific needs. If you have limited programming experience, you may want to consult one of the Microsoft Solution Providers. Solution Providers offer a wide range of fee-based services, including creating custom macros. For more information about Microsoft Solution Providers, call Microsoft Customer Information Service at (800) 426-9400.

To prevent this problem from occurring, do not refer directly to the range of cells in the ListArray argument. Instead, use a variable to temporarily hold the values from the cells, and then pass the values from the variable to the custom list.

The following example macro uses a variable to hold the values from the cells, and then passes the values from the variable to the custom list:

   Sub AddACustomList()

       ' Dimension a variable to hold the values.
       Dim TempArray As Variant

       ' Populate the variable with the values from the range of cells.
       TempArray = Range("A1:A4")

       ' Create the custom list.
       Application.AddCustomList ListArray:=TempArray

   End Sub

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

In Microsoft Excel 97, you can add custom lists to the application by doing either of the following:

• On the Tools menu, click Options. Click the Custom Lists tab. Then, click Add or Import to add a new custom list to the application.

      -or-
  

• Add a custom list to the application by using the AddCustomList method in a Visual Basic macro.

   Application.AddCustomList ListArray:=Range("A1:A4")

   Application.AddCustomList ListArray:=Array("Alpha", "Bravo", "Charlie")