BUG: Inconsistent Firing of ListBox Click Event Using Keyboard

• Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0

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.

Additional query words: kbVFp600bug kbVFp500abug kbXBase

Keywords : kbcode
Version : WINDOWS:5.0,5.0a,6.0
Platform : WINDOWS
Issue type : kbbug