FIX: AutoScreen of Extremely Wide Table Causes Error

ID: Q121088

2.60    | 2.60

WINDOWS | MS-DOS kbother kbbuglist kbfixlist

The information in this article applies to:

Microsoft FoxPro for Windows, version 2.6
Microsoft FoxPro for MS-DOS, version 2.6

SYMPTOMS

Creating an AutoScreen in the Catalog Manager causes one of the following error messages to appear:

   FoxPro for Windows
   ------------------

      Invalid file descriptor.

   FoxPro for MS-DOS
   -----------------

      Variable not found.

After you choose Cancel in the dialog box displaying either of the error messages listed above, the following error message is also displayed:

   <filename>.spr not found or not a supported type

CAUSE

The table used by the AutoScreen tool contains a large number of fields with long names.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. This problem was corrected in FoxPro 2.6a for Windows and FoxPro 2.6a for MS-DOS.

MORE INFORMATION

The GENSCRN.PRG program, which is run by the AutoScreen utility, contains the following line:

   SET FIELDS TO &mfieldsto

If the list of fields stored in MFIELDSTO is greater than approximately 2048 characters, the SET FIELDS command does not run properly.

Steps to Reproduce Problem

1. Create a table with a large number of fields that have long names.

2. Start the Catalog Manager.

3. Select the Table tab, add the table, and then choose USE.

4. Choose the AutoScreen button (above the Label tab) in Catalog

   Manager.

When the AutoScreen tool is approximately one-third of the way finished creating the screen, it stops, displaying the error messages described at the beginning of this article.

Additional reference words: FoxDos FoxWin 2.60 2.60a buglist2.60 fixlist2.60a auto- screen power tool catman KBCategory: kbother kbbuglist kbfixlist KBSubcategory: FxtoolSbuilder

Keywords          : FxtoolSbuilder kbbuglist kbfixlist
Version           : 2.60 | 2.60
Platform          : MS-DOS WINDOWS
Solution Type     : kbfix