Q191718: BUG: Error 13 Assigning Variable to UserControl in Same Project

Article: Q191718
Product(s): Microsoft Visual Basic for Windows
Version(s): 
Operating System(s): 
Keyword(s): kbGrpDSVB
Last Modified: 11-JAN-2001

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The information in this article applies to:

- Microsoft Visual Basic Learning Edition for Windows, versions 5.0, 6.0 
- Microsoft Visual Basic Professional Edition for Windows, versions 5.0, 6.0 
- Microsoft Visual Basic Enterprise Edition for Windows, versions 5.0, 6.0 
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SYMPTOMS
========

You receive a Type Mismatch Error (13) when assigning a UserControl to a
variable if the UserControl is in the same project as the assigning code. The
problem does not occur if the UserControl is in a different project or compiled.

RESOLUTION
==========

Load the form containing the UserControl before assigning the UserControl to the
variable. (See step 8 in Steps to Reproduce Behavior below.)

STATUS
======

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

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

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

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

2. Add a UserControl to the project.

3. Place an instance of the UserControl on Form1.

4. Add a Standard Module to the project.

5. Insert the following code into Module1:

        Sub Main()
           Dim x As UserControl1
           Set x = Form1.UserControl11
        End Sub

6. Set the Startup Object of the project to Sub Main.

7. Run the project. You should receive "Run-time error 13. Type Mismatch."

8. To resolve the problem, change the code in step 5 to:

        Sub Main()
           Dim x As UserControl1
           Load Form1
           Set x = Form1.UserControl11
        End Sub

Additional query words: kbDSupport kbDSD kbVBp kbVBp600bug kbVBp500bug kbCtrl

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Keywords          : kbGrpDSVB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVB600Search kbVBA500 kbVBA600 kbVB500 kbVB600
Issue type        : kbbug

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