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Q161359: PRB: Class Names in VFP 5.0 are Case Sensitive

Article: Q161359
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0b,5.0,6.0; :3.0
Operating System(s): 
Keyword(s): kbvfp300 kbvfp500 kbvfp600
Last Modified: 04-FEB-2000

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0b, 5.0, 6.0 
- Microsoft Visual FoxPro for Macintosh, Professional Edition, version 3.0 
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SYMPTOMS
========

When referencing an object class or base class for comparison, the class name is
case sensitive.

When testing the class property of a command button and comparing the property
setting to the string "commandbutton" rather than "Commandbutton," the code
fails. The 'c' in Commandbutton must be capitalized.

RESOLUTION
==========

The text used for comparison must match the property setting exactly.

STATUS
======

This behavior is by design.

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

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

1. Create a form with a command button. The base class is Commandbutton and the
  class is Commandbutton.

2. Place the following code in the Click event of a command button:

        i=1
        FOR i = 1 to ThisForm.ControlCount
           IF ThisForm.Controls(i).Class = "commandbutton" THEN
              WAIT WINDOW ThisForm.Controls(i).Name
           ELSE
              WAIT WINDOW "This is not a Command Button:  "  + ;
                           ThisForm.Controls(i).Name
           ENDIF
        NEXT i

The code above returns a Wait window indicating the commandbutton class is not a
command button because the 'c' in commandbutton is lowercase. Replace the
lowercase "c" with an uppercase "C," and it works properly.

Replace:

     IF ThisForm.Controls(i).Class = "commandbutton" THEN

With:

     IF ThisForm.Controls(i).Class = "Commandbutton" THEN

Additional query words: VFoxWin kbdse VFoxMac

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Keywords          : kbvfp300 kbvfp500 kbvfp600 
Technology        : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbVFP300Mac kbVFP300b kbVFP500 kbVFP600
Version           : WINDOWS:3.0b,5.0,6.0; :3.0

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