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Q157762: FIX: Invalid Page Fault After Summing Currency Field of Cursor

Article: Q157762
Product(s): Microsoft FoxPro
Version(s): WINDOWS:5.0
Operating System(s): 
Keyword(s): kbprogramming kbvfp kbvfp500aFIX kbvfp500bugkbbuglist kbfixlist
Last Modified: 11-DEC-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, version 5.0 
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SYMPTOMS
========

After using the CALCULATE command to SUM the contents of a currency field in a
cursor file, and storing that sum in a variable, the resulting variable may
cause system errors in subsequent operations. For example, one error is as
follows:

  Vfp.exe caused an Invalid Page Fault

WORKAROUND
==========

Do one of the following:

1. Use the SET TALK ON command.

-or-

2. Change the field type to something other than currency.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products listed at
the beginning of this article. This problem has been fixed in Visual FoxPro
5.0a.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

The following sequence of commands result in the error described above:

     SET TALK OFF
     CREATE CURSOR test (nAmount Y)
     CALCULATE ALL SUM(nAmount) TO nTotal
     ? nTotal # 0

Make one of the changes below to work around the problem:

1. Change the line "SET TALK OFF" to "SET TALK ON."

-or-

2. Change the field type in the CREATE CURSOR command to something other than
  currency (Y).

Additional query words:

======================================================================
Keywords          : kbprogramming kbvfp kbvfp500aFIX kbvfp500bug kbbuglist kbfixlist
Technology        : kbVFPsearch kbAudDeveloper kbVFP500
Version           : WINDOWS:5.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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