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Q191207: BUG: Compile Error When You Reopen a Project That Uses Implement

Article: Q191207
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:6.0
Operating System(s): 
Keyword(s): kberrmsg kbCompiler kbVBp600bug kbGrpDSVB
Last Modified: 11-JAN-2001

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The information in this article applies to:

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

When you reopen a project that uses the Implements keyword and that previously
ran fine, the following error is received:

  Compile error: User-defined type not defined

CAUSE
=====

This problem occurs because Visual Basic incorrectly saves a file and Implements
does not work properly.

RESOLUTION
==========

Steps to Resolve the Problem
----------------------------

1. Select References from the Project menu.

2. Select Microsoft Data Formatting Object Library and the Microsoft Data Source
  Interfaces.

3. Save the Project.

4. Press F5 to run the project. The above error does not occur.

STATUS
======

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

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

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

1. Start a new ActiveX DLL project in Visual Basic. Class1 is created by
  default.

2. In Class1, paste the following code:

        Implements DataBinding

3. In the code window, select the DataBinding object from the Object box.

4. Click the Procedure arrow to view all the Procedures of the DataBinding
  object. Select each until all the functions are listed in bold.

5. Press F5 to run the Project. The project runs with no error.

6. Save the project files.

7. Close the project.

8. Reopen the project, and press F5 to run it.

RESULTS: The following error occurs:

  Compile Error : User-defined type not defined

  This error is for:

     Private Property Set DataBinding_DataFormat(ByVal RHS As
     StdFormat.DataFormat)

  - and also -

     Private Property Let DataBinding_DataMember(ByVal RHS As
     MSDATASRC.DataMember)

======================================================================
Keywords          : kberrmsg kbCompiler kbVBp600bug kbGrpDSVB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVBA600 kbVB600
Version           : WINDOWS:6.0
Issue type        : kbbug
Solution Type     : kbpending

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