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Q189913: BUG: Inconsistent Firing of ListBox Click Event Using Keyboard

Article: Q189913
Product(s): Microsoft FoxPro
Version(s): WINDOWS:5.0,5.0a,6.0
Operating System(s): 
Keyword(s): kbcode
Last Modified: 24-AUG-1999

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The information in this article applies to:

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

When navigating through a list box using the keyboard, you will see different
behavior with the firing of the Click event depending on your method of
navigation.

For example, using the Up/Down arrow keys will fire the Click event, while using
the PageUp/PageDown keys will not cause the Click event to fire.

RESOLUTION
==========

For more consistent results navigating in a list box with the keyboard, it is
recommended that you use the list box's InterActiveChange event rather than the
Click event.

STATUS
======

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

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

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

1. Run the following code:

        PUBLIC ox
        ox = CreateObject("test")
        ox.show

        DEFINE CLASS test AS form
           Top = 0
           Left = 0
           Height = 231
           Width = 249
           DoCreate = .T.
           Caption = "Form1"
           Name = "Form1"
           ADD OBJECT list1 AS listbox WITH ;
              RowSourceType = 1, ;
              RowSource = "One,Two,Three,Four,Five,Six,Seven,Eight", ;
              Height = 193, ;
              Left = 24, ;
              Top = 12, ;
              Width = 205, ;
              Name = "List1"
           PROCEDURE list1.Click
              WAIT WINDOW NOWAIT this.value
           ENDPROC
        ENDDEFINE

2. Use the Up/Down arrow keys.

  NOTE: The Click event fires, bringing up the WAIT WINDOW.

3. Use the PageUp/PageDown keys.

NOTE: The Click event never fires.

Additional query words: kbVFp600bug kbVFp500abug kbXBase

======================================================================
Keywords          : kbcode 
Technology        : kbVFPsearch kbAudDeveloper kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS:5.0,5.0a,6.0
Issue type        : kbbug
Solution Type     : kbnofix

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