Microsoft KB Archive/257703

Knowledge Base

FIX: ListView Control Still Active After Opening Modal Form

Article ID: 257703

Article Last Modified on 8/7/2007

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APPLIES TO

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

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This article was previously published under Q257703

SYMPTOMS

You have a ListView control on a form. From an event in the ListView control, you show a modal form. Despite the fact that a modal form has been displayed, the ListView control still receives events, such as a mouse click.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article. This bug was corrected in the latest service pack for Visual Studio 6.0.

For additional information about Visual Studio service packs, click the following article numbers to view the articles in the Microsoft Knowledge Base:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 HOWTO: Tell That a Visual Studio Service Pack Is Installed

To download the latest Visual Studio service pack, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/vstudio/Aa718353.aspx

MORE INFORMATION

Steps to Reproduce Behavior

1. Open a new Standard EXE project in Visual Basic 6.0. Form1 is created by default.
2. On the Project menu, select Components. Select the Microsoft Windows Common Controls 6.0 (SP3), and then click OK.
3. Add a ListView control to Form1.
4. Set the View property of the ListView control to 3 - lvwReport.

5. Add the following code to the module of Form1:

   Private Sub Form_Load()
       ListView1.ColumnHeaders.Add , , "column 1"    
   End Sub
   
   Private Sub ListView1_ColumnClick(ByVal ColumnHeader As MSComctlLib.ColumnHeader)
       Form2.Show vbModal
   End Sub
                       

6. From the Project menu, add a second form to the project.
7. Add a CommandButton to Form2.

8. Add the following code to the module of Form2:

   Private Sub Command1_Click()
       Unload Me
   End Sub
   
   Private Sub Form_Load()
       Me.Top = Form1.Top + Form1.Height
       Me.Left = Form1.Left + Form1.Width
   End Sub
   
                       

9. Run the project.
10. Click on Column 1 in the ListView control.
11. Click on Column 1 a second time. This should not be possible. You should receive an error stating that the form is already loaded.

Additional query words: sp4

Keywords: kbbug kbfix kblistview kbvs600sp4fix kbvs600sp5fix KB257703

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