FIX: SSTab Is Locked When on Modal Form Shown at Load Time (149274)
The information in this article applies to:
- Microsoft Visual Basic Standard Edition, 32-bit, for Windows 4.0
- Microsoft Visual Basic Professional Edition, 16-bit, for Windows 4.0
- Microsoft Visual Basic Professional Edition, 32-bit, for Windows 4.0
- Microsoft Visual Basic Enterprise Edition, 16-bit, for Windows 4.0
- Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows 4.0
This article was previously published under Q149274 SYMPTOMS
Showing a modal form in the Form_Load event of a different form causes any
SSTab controls on the modal form to ignore all mouse and keyboard commands.
This problem occurs with both the 16-bit and 32-bit SSTab OCXs.
RESOLUTION
This problem occurs only when the tab control is on a form that is shown
modally during the load event of another form. To avoid this problem,
either show the form non-modally, or show the form modally, but in an event
other than the Form_Load event of the first form. Alternatively, one can
emulate the appearance of showing the second form modally using a scheme
similar to the one outlined below, although any code placed in the
Form_Load event will be executed because execution will not pause when the
second form is shown. This should be taken into account if code is written
using this method. The following code fragment makes the first form
invisible and then shows the second form. When the second form is unloaded,
one line of code in the Unload event of the second form makes the first
form visible again.
Sample Code
----------------
' On Form1
Private Sub Form_Load()
Form1.Visible = False
Form2.Show
End Sub
' On Form2
Private Sub Form_Unload()
Form1.Visible = True
End Sub
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
This bug was corrected in Visual Basic 5.0. REFERENCES
For additional information, please see the following article in the Microsoft Knowledge Base:
145638 FIX: Cannot Select Sheridan Tab Control from Modal Form
Modification Type: | Minor | Last Reviewed: | 3/14/2005 |
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Keywords: | kbBug kbfix kbVBp500fix KB149274 |
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