KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q177145: PRB: Error Changing DynamicCurrentControl of Grid Column

Article: Q177145
Product(s): Microsoft FoxPro
Version(s): WINDOWS:5.0,5.0a
Operating System(s): 
Keyword(s): kbvfp kbvfp500 kbvfp500a
Last Modified: 11-DEC-1999

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

- Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a 
-------------------------------------------------------------------------------

SYMPTOMS
========

When you switch between controls in a grid's column at run-time the following
error message appears:

  Expression is invalid, use a valid expression for
  DynamicCurrentControl.

RESOLUTION
==========

When you set or change the DynamicCurrentControl property of a grid's Column,
use '"combo1"' (an additional pair of quotes around the control string) instead
of "combo1." Here's an example:

     ThisForm.Grid1.Column1.DynamicCurrentControl = '"combo1"'

STATUS
======

This behavior is by design.

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

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

1. Create a database, named Data1, and add a new table, Table1, with two fields.
  The first field will be ID(C10) and the second field will be Name(C20). Next,
  insert some records into the table.

2. Create a new form and include Table1 in its DataEnvironment. Drag the table
  onto the form to create a grid control based on the table.

3. Add a combo box control in Grid.Column1.

4. Add a command button to the form, and type the following code in the Click
  event:

        ThisForm.Grid1.Column1.DynamicCurrentControl = "combo1"
        ThisForm.Refresh

5. Run the form and click the command button to produce the error:

        Expression is invalid, use a valid expression for
        DynamicCurrentControl.

  NOTE: Using views causes the same error.

Additional query words: DynamicCurrentControl grid combobox views

======================================================================
Keywords          : kbvfp kbvfp500 kbvfp500a 
Technology        : kbVFPsearch kbAudDeveloper kbVFP500 kbVFP500a
Version           : WINDOWS:5.0,5.0a
Issue type        : kbprb

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

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.