BUG: Inconsistent Firing of ListBox Click Event Using Keyboard (189913)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 5.0
  • Microsoft Visual FoxPro for Windows 5.0a
  • Microsoft Visual FoxPro for Windows 6.0
This article was previously published under Q189913

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.
Modification Type:MajorLast Reviewed:8/24/1999
Keywords:kbbug kbcode KB189913
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