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Q241126: INFO:Dynamically Add UserControls That Require Run-Time Licenses

Article: Q241126
Product(s): Microsoft Visual Basic for Windows
Version(s): 6.0
Operating System(s): 
Keyword(s): kbActiveX kbCtrl kbLicensing kbVBp600 kbGrpDSVB kbDSupport
Last Modified: 11-JAN-2001

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The information in this article applies to:

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

When a UserControl contains one or more controls that require run-time licenses,
the UserControl implicitly becomes a licensed control (requires run-time
license). As a result, when you use the Controls.Add method to add the
UserControl dynamically, you must precede it by a call to the Licenses.Add
method and provide the license key for the call.

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

If you create a UserControl named, for example, MyProject.MyUserControl, that
contains one or more controls that require a run-time license,
MyProject.MyUserControl acquires a run-time license implicitly. Therefore, if
you use the Controls.Add method to add MyProject.MyUserControl dynamically, or
call Licenses.Add "MyProject.MyUserControl" without providing the license key,
you get the following error message:

  Run-time error '429': You do not have an appropriate license to use this
  functionality.

To make this work, you must obtain MyProject.MyUserControl's license key on the
development computer with the following code:

  Debug.Print Licenses.Add ("MyProject.MyUserControl")

Then, in the client code, you can use the following code to dynamically add
MyProject.MyUserControl:

  Licenses.Add "MyProject.MyUserControl", "License Key"<BR/>
  Form1.Controls.Add "MyProject.MyUserControl", "ControlName"

REFERENCES
==========

For additional information how to add controls dynamically, click the article
number below to view the article in the Microsoft Knowledge Base:

  Q190670 HOWTO: Dynamically Add Controls to a Form with Visual Basic 6.0

Additional query words: 429

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Keywords          : kbActiveX kbCtrl kbLicensing kbVBp600 kbGrpDSVB kbDSupport 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVBA600 kbVB600
Version           : :6.0
Issue type        : kbinfo

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