Knowledge Base

BUG: Changing Appearance Property Reduces ListBox Height

Article ID: 191858

Article Last Modified on 5/13/2003

Microsoft Visual Basic 6.0 Learning Edition
Microsoft Visual Basic 6.0 Professional Edition
Microsoft Visual Basic 6.0 Enterprise Edition

This article was previously published under Q191858

SYMPTOMS

When the Appearance property of a ListBox control is changed at run-time, the height of the ListBox control is reduced.

RESOLUTION

Set the IntegralHeight property of the ListBox to False at design-time.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

MORE INFORMATION

Steps to Reproduce Behavior

Start a new Standard EXE project in Visual Basic. Form1 is created by default.
Add a ListBox control and a CommandButton to Form1.

Copy the following to the Code window of Form1:

      Option Explicit

      Private Sub Command1_Click()
         Debug.Print "Appearance property = " & List1.Appearance & _
            " Height property = " & List1.Height
         If List1.Appearance = 0 Then
            List1.Appearance = 1
         Else
            List1.Appearance = 0
         End If
      End Sub

Open the Immediate Window. On the Run menu, select Start, or press the F5 key to start the program. Click the CommandButton. Note that every CommandButton click causes the ListBox height to change.

If you set the IntegralHeight property of the ListBox to False, the bug behavior does not occur.

Additional query words: kbDSupport kbDSD kbVBp kbCtrl kbVBp600bug

Keywords: kbbug KB191858