FIX: UserControls on Property Pages Do Not Trigger Focus Events (171512)


The information in this article applies to:

  • Microsoft Visual Basic Control Creation Edition for Windows 5.0
  • Microsoft Visual Basic Professional Edition for Windows 5.0
  • Microsoft Visual Basic Enterprise Edition for Windows 5.0
This article was previously published under Q171512

SYMPTOMS

When using Property Pages that contain UserControls, code that is contained within the UserControls' Focus events (EnterFocus, ExitFocus, GotFocus, LostFocus) is not triggered.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been fixed in Visual Studio 97 Service Pack 2.

For more information on the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:

170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why

For a list of the Visual Basic 5.0 bugs that were fixed in the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:

171554 INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2

MORE INFORMATION

Steps to Reproduce Behavior

  1. Create a new Standard EXE project.
  2. Add a UserControl.
  3. Insert a CommandButton into the UserControl's designer.
  4. Add the following code to the UserControl's code window: 
          Private Sub Command1_GotFocus()
              Debug.Print "Command GF"
          End Sub

          Private Sub Command1_LostFocus()
              Debug.Print "Command LF"
          End Sub

          Private Sub UserControl_EnterFocus()
              Debug.Print "ENTERFOCUS"
          End Sub

          Private Sub UserControl_ExitFocus()
              Debug.Print "EXITFOCUS"
          End Sub
  5. Add a PropertyPage to the project.
  6. Insert an instance of the UserControl onto the PropertyPage.
  7. Insert a CommandButton onto the PropertyPage.
  8. Add the following code to the PropertyPage's code window: 
          Private Sub Command1_GotFocus()
          Debug.Print "Command1 on property page GF"
      End Sub

      Private Sub Command1_LostFocus()
          Debug.Print "Command1 on property page LF"
      End Sub
  9. In the UserControl's property browser, set the PropertyPage to PropertyPage1.
  10. Insert an instance of the UserControl on Form1.
  11. Right-click on the UserControl. Click Properties.
  12. Click on the CommandButton.

    RESULT: NO EVENTS fire off, the Usercontrol's CommandButton should have gotten its LostFocus, the Usercontrol should have gotten its ExitFocus and the CommandButton should have gotten its GotFocus event.

REFERENCES

For more information on creating UserControls, please see Chapter 4 and 9 in the Component Tools Guide.
Modification Type:MajorLast Reviewed:11/18/2003
Keywords:kbbug kbfix kbvbp500sp2fix kbVS97sp2fix KB171512
©2003 Microsoft Corporation. All rights reserved.