BUG: Fatal Error Referencing Memo Field in Watch Window Bound to Edit Box (240887)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 6.0, when used with:
    • the operating system: Microsoft Windows NT
    • the operating system: Microsoft Windows 98
This article was previously published under Q240887

SYMPTOMS

Referencing a memo field in the Watch Window that is bound to an edit box on a form might result in a fatal error in Microsoft Visual FoxPro. After you close the error dialog box, Visual FoxPro terminates.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

MORE INFORMATION

The error varies depending upon whether you are using Visual FoxPro 6.0 on Microsoft Windows 98 or Microsoft Windows NT.

Using Visual FoxPro 6.0 on Windows 98 and Windows NT 4.0, you receive the following error message:
Fatal error: Exception code = C0000005.
Using Visual FoxPro 6.0 under Visual Studio 6.0 SP3 on Windows 98 and Windows NT 4.0, you receive this error message:
This program has performed an illegal operation and will be shut down.

Steps to Reproduce Behavior

Follow one of the methods below to reproduce the error.

Method 1:
  1. Create a form.
  2. Add a table to the data environment that contains a memo field.
  3. Add an edit box to the form that is bound to the memo field.
  4. Run the form.
  5. Open the debugger.
  6. Enter the name of the memo field in the Watch Window and press the Enter key.
Method 2: Create a program with the following code, and then run the program: 
*** start of code ***
CREATE CURSOR temp (m1 M)
APPEND BLANK
REPLACE m1 WITH "This is a test."
PUBLIC oform1
oform1=CREATEOBJECT("form1")
oform1.SHOW
DEBUG
_CLIPTEXT = "temp.m1"
KEYBOARD '{alt+3}{ctrl+v}{enter}'
RETURN

DEFINE CLASS form1 AS FORM

   TOP = -1
   LEFT = -1
   HEIGHT = 300
   WIDTH = 400
   DOCREATE = .T.
   CAPTION = (VERSION())
   LOCKSCREEN = .F.
   NAME = "Form1"

   ADD OBJECT edit1 AS EDITBOX WITH ;
      HEIGHT = 169, ;
      LEFT = 48, ;
      TOP = 48, ;
      WIDTH = 241, ;
      CONTROLSOURCE = "temp.m1", ;
      NAME = "Edit1"

ENDDEFINE
*** end of code ***
(c) Microsoft Corporation 1999, All Rights Reserved. Contributions by Dean Christopher, Microsoft Corporation.

Modification Type:MajorLast Reviewed:11/17/2003
Keywords:kbBug kbMiscTools kbpending KB240887
©2003 Microsoft Corporation. All rights reserved.