KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q142831: PRB: DBList Shrinks When Toggling Appearance Property

Article: Q142831
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:4.0
Operating System(s): 
Keyword(s): kbVBp400 kbGrpDSVBDB
Last Modified: 11-JAN-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Visual Basic Professional Edition, 16-bit, for Windows, version 4.0 
- Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0 
- Microsoft Visual Basic Enterprise Edition, 16-bit, for Windows, version 4.0 
- Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

With the DBList's IntegralHeight property set to True (the default) switching
back and forth between the 3D and flat versions of the DBList control (via the
Appearance property) causes the DBList control to shrink vertically, possibly
all the way to a single horizontal line.

CAUSE
=====

When the control's Appearance property is Flat, the control has a certain number
of pixels X for a certain number of rows N, as well as two extra pixels for the
border. When switched to a 3D view, the control still only uses a maximum of X+2
pixels total but now uses 4 pixels for the border, and it doesn't have enough
space left over for all N rows of data. To remedy this, the control reduces the
number of rows shown by one. Repeating this numerous times causes row after row
to be lost, until no rows are left, and the control appears as a flat line.

RESOLUTION
==========

After setting the Appearance property to the desired value, resize the control
to the desired proportions.

STATUS
======

This behavior is by design.

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

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

1. Start Visual Basic, or if it is already running, choose New Project from the
  File menu.

2. Click and drag a single DBList control onto the form. The IntegralHeight
  property of the control is set to True by default.

3. Repeatedly double-click on the DBList's Appearance property in the Properties
  window to toggle between the flat and 3D views of the DBList control. The
  control will shrink in size vertically, until it remains as just a single
  line on the form.

Additional query words: 4.00 3-d vb4win vb4all

======================================================================
Keywords          : kbVBp400 kbGrpDSVBDB 
Technology        : kbVBSearch kbAudDeveloper kbVB400Search kbVB400 kbVB16bitSearch
Version           : WINDOWS:4.0
Issue type        : kbprb

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.