DOCUMENT:Q223080  25-MAY-1999  [vbwin]
TITLE   :FIX: ADODC Errors When RecordSet Property is set to NULL
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:6.0
OPER/SYS:
KEYWORDS:kbservicepack kbCtrl kbVBp600fix kbVS600sp2 kbVS600SP1 kbVS600sp3fix kbGrpDSVBDB

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
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SYMPTOMS
========

Setting the RecordSet property on the ActiveX Data Control (ADO) DataControl to
Nothing generates one of the following errors:

   Run-time error '-2147217908 (80040e0c)': Method 'Refresh' of object 'IADODC'
   failed.

   -or-

   Run-time error '-2147417848 (80010108)': Method 'Recordset' of object
   'IADODC' failed.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3.

For more information about Visual Studio 6.0 Service Packs, please see the
following articles in the Microsoft Knowledge Base:

Q194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

Q194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

The following code sample uses the NorthWinds database, NWind.MDB, that comes
with Visual Basic.

1. Start Visual Basic 6.0 and create a new Standard EXE project. Form1 is
   created by default.

2. Add the following Project Component:

   Microsoft ADO Data Control 6.0 (OLEDB)

3. Paste the following code into the default form:

      Private Sub Form_Load()

      Adodc1.ConnectionString = "Provider=Microsoft.Jet.OLEDB.3.51;" & _
        "Data Source=C:\Program Files\Microsoft Visual Studio\VB98\Nwind.mdb"
      Adodc1.RecordSource = "SELECT * FROM Employees"
      Adodc1.Refresh
      MsgBox Adodc1.Recordset("LastName")

      'Error occurs on this line:
      Set Adodc1.Recordset = Nothing

   End Sub

REFERENCES
==========

(c) Microsoft Corporation 1999, All Rights Reserved. Contributions by Matthew
Hofacker, Microsoft Corporation.


Additional query words:

======================================================================
Keywords          : kbservicepack kbCtrl kbVBp600fix kbVS600sp2 kbVS600SP1 kbVS600sp3fix kbGrpDSVBDB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600
Version           : WINDOWS:6.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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Copyright Microsoft Corporation 1999.