XL98: "Invalid Use of Null" Error Setting OnRepeat Method

ID: Q184175

The information in this article applies to:

Microsoft Excel 98 Macintosh Edition

SYMPTOMS

When you run a macro that sets the Text and Procedure arguments for the OnRepeat method to Null in Microsoft Excel 98 Macintosh Edition, you may receive the following error message:

   Run-time error '94':
   Invalid Use of Null

NOTE: Your macro may run successfully in earlier versions of Microsoft Excel but fail in Microsoft Excel 98.

CAUSE

You cannot use Null for the parameters of the OnRepeat method as a valid means to reset the Repeat command. The Text and Procedure parameters require a String value.

RESOLUTION

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/

In earlier versions of Microsoft Excel, you can set the parameters of the OnRepeat method to Null and not receive an error. If you set the OnRepeat argument to Null, you reset the action that occurs when the user selects the Repeat command on the Edit menu.

The following macro runs successfully in Microsoft Excel version 5.0 but fails in Microsoft Excel 98:

   Sub Test()

        MsgBox "Hello World!"

        ' Reset the Repeat command
        Application.OnRepeat Text:=Null, Procedure:=Null

   End Sub

To correct this problem so that the macro runs without error, set the OnRepeat arguments to empty string values instead of Null:

   Sub Test()

        MsgBox "Hello World!"

        'Reset the Repeat command
        Application.OnRepeat Text:="", Procedure:=""

   End Sub

STATUS

This behavior is by design of Microsoft Excel 98 Macintosh Edition.

Additional query words: 8.0 8.00 vba vbe XL98

Keywords          : kbprg kbdta kbconversion kbdtacode OffVBA xlvbmigrate xlmac 
Version           : MACINTOSH:98
Platform          : MACINTOSH
Issue type        : kbprb

Last Reviewed: June 30, 1999