BUG: Incorrect Error Message When Setting Read-Only Count Prop (151081)

The information in this article applies to:

Microsoft Visual Basic Learning Edition for Windows 5.0
Microsoft Visual Basic Learning Edition for Windows 6.0
Microsoft Visual Basic Professional Edition for Windows 5.0
Microsoft Visual Basic Professional Edition for Windows 6.0
Microsoft Visual Basic Enterprise Edition for Windows 5.0
Microsoft Visual Basic Enterprise Edition for Windows 6.0
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 Q151081

SYMPTOMS

When trying to set the Count property of the Forms collection, the following error message is displayed:

Error 380 - Invalid Property Value

This error message is incorrect. Visual Basic should display an error message indicating that the property is read-only at run time.

RESOLUTION

Do not try to set the Count property of the Forms collection. This property is read-only because it describes the number of open forms of the project. The Count property can only be set indirectly by loading and unloading forms.

STATUS

Microsoft has confirmed this to be an issue in the Microsoft products listed at the beginning of this article. Microsoft is researching this issue and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Problem

Start a new project in Visual Basic. Form1 is created by default.

In the Load event for Form1, place the following code:

   Private Sub Form_Load()
         Dim x As Object
         Set x = Forms
         x.Count = 1
   End Sub

Run the project by pressing the F5 key. The following error results:
Error 380 - Invalid Property Value

Modification Type:	Major	Last Reviewed:	6/28/2004
Keywords:	kbbug KB151081