DOCUMENT:Q157988  11-DEC-1999  [foxpro]
TITLE   :FIX: Illegal Operation Caused by Clicking on Blank Index
PRODUCT :Microsoft FoxPro
PROD/VER:WINDOWS:5.0
OPER/SYS:
KEYWORDS:kbtool kbvfp kbvfp500aFIX kbvfp500bugkbbuglist kbfixlist

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The information in this article applies to:

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

The following message appears when clicking on a blank index in the Table
Designer after removing the field the index was based on.

   This program has performed an illegal operation and will be shut down.

This happens if there is only one index for the table, and that index is based on
a field that has been removed.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products listed at
the beginning of this article. fix

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

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

1. Use the Table Designer to create a table called Test with two character
   fields called char1 and char2.

2. Click the Indexes tab and create an index called char1 on field char1.

3. Click OK. You can add a few records if you wish.

4. Type MODIFY STRUCTURE in the Command window.

5. In the Fields tab of the Table Designer select the first field char1, and
   click Delete. (You must click the Delete button in the dialog box rather than
   the press the Delete key on the keyboard.)

6. Click the Indexes tab and then click in the blank outlined field under Name.

The error message "This program has performed an illegal operation and will be
shut down." Appears. When you click Close, Visual FoxPro closes.

Additional query words: gpf general protection fault

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

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