Microsoft KB Archive/172275
Article ID: 172275
Article Last Modified on 3/2/2005
- Microsoft Visual Basic 4.0 Professional Edition
- Microsoft Visual Basic 4.0 Enterprise Edition
This article was previously published under Q172275
The mouse does not select items in the drop-down combo box of DBCombo on a Modal Form in an executable.
To resolve this problem, upgrade to Visual Basic 6.0.
In Visual Basic 4.0, the following code will work around the problem:
Private Sub Form_Initialize() ' Loop thru each form in the FormS collection For Each Form in Forms 'Find each form that is not the current form If Form.Name <> Me. Name Then Form. Enabled = True ' and Disable it End If End Sub Private Sub Form_Unload() ' Loop thru each form in the FormS collection For Each Form in Forms 'Re-enable all the forms in the FormS collection If Form.Name <> Me. Name Then Form. Enabled = True End If End Sub
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in Microsoft Visual Basic Professional and Enterprise editions, version 6.0.
Steps to Reproduce Behavior
- Create a New Project in Visual Basic 4.0.
- Insert a module.
Add the following code:
Sub main() Form1.Show vbModal End Sub
On Form1, add a Data Control (Data1) and a DBCombo (DBCombo1). Set the following properties:
Data1.DatabaseName = biblio.mdb Data1.Recordsource = Authors DBCombo1.RowSource = Data1 DBCombo1.ListField = Author
- Under the Tools menu, select Options.
- Select the Project Tab.
- Set the Main Procedure for the Startup Form.
- Build an executable.
- Run the executable.
- Drop down the combo box, and try to select an option.
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
150210 FIX: DBCombo Control Does Not Allow Selection on Modal Form
Additional query words: vb
Keywords: kbbug kbfix kbvbp600fix KB172275