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Q149608: BUG: Valid Method Does Not Fire in Combo Box

Article: Q149608
Product(s): Microsoft FoxPro
Version(s): WINDOWS: 3.0,3.0b,5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbprogramming kbvfp kbvfp300bBUG kbvfp500aBUG kbvfp500bugkbbuglist
Last Modified: 19-AUG-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a, 6.0 
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SYMPTOMS
========

The Valid method code of a combo box does not fire when the Style property is
set to 2 - Dropdown List.

WORKAROUND
==========

Set the Style property of the combo box to 0 - Dropdown Combo.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products listed at
the beginning of this article. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes available.

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

Setting the Style property to 0 - Dropdown Combo is not always the best
interface solution. Certain style features of the Dropdown List do not exist in
the Dropdown Combo style. One major difference between these two styles is that
the Dropdown List is read-only while the Dropdown Combo allows the user to type
in the text area and possibly add new entries to the list. For the read-only
feature, use the KeyPress event to trap for keys being pressed while the combo
box object has the focus.

Steps to Reproduce Problem
--------------------------

1. Create a new form. Add a combo box and text box. Change the Style property of
  the combo box to 2 - Dropdown List. Place a WAIT WINDOW command in the combo
  box Valid method.

2. Save changes to the form, and run the form. Make sure the tab order is set so
  the combo box is the first object. Press the TAB key to move out of the combo
  box to the next field. Notice the Valid method of the combo box does not
  fire.

Additional query words: kbvfp300 kbvfp500 kbvfp600

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Keywords          : kbprogramming kbvfp kbvfp300bBUG kbvfp500aBUG kbvfp500bug kbbuglist
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS: 3.0,3.0b,5.0,5.0a,6.0
Issue type        : kbbug

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