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Q168043: FIX: Grid is Empty with Incorrect Column ControlSource

Article: Q168043
Product(s): Microsoft FoxPro
Version(s): 5.0 5.0a
Operating System(s): 
Keyword(s): kbvfp kbvfp500bugkbbuglist
Last Modified: 23-MAR-2000

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The information in this article applies to:

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

Specifying an invalid column ControlSource name in a Grid results in an empty
grid in Visual FoxPro 5.x. However, in Visual FoxPro 3.x, this results in the
following error, which is expected:

  "Error loading File - ControlSource..., Variable "column name" is not found"

RESOLUTION
==========

Check the ControlSource names in each column and make sure they are valid names.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This has been corrected in Visual FoxPro 6.0.

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

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

1. Run the following code from a program (.PRG) file:

        SET SAFETY ON
        USE HOME()+'samples\data\customer'
        LOCAL aobj[1], ox
        CREATE FORM TEMP NOWAIT
        =ASELOBJ(aobj,1)
        ox = aobj[1]
        ox.AddObject('grid1','Grid')
        WITH ox.grid1
           .Recordsource = 'customer'
           .Visible = .T.
           .ColumnCount = 2
           .Column1.ControlSource = 'customer.cust_id'

           * Purposely put an invalid column controlsource name
                .Column2.ControlSource = 'customer.Xcontact'

           * To display the Grid correctly set:
           *   .Column2.ControlSource = 'customer.contact'

        ENDWITH
        KEYBOARD 'Y' CLEAR
        RELEASE WINDOW 'Form Designer'
        DO FORM temp

2. Form shows up with an empty grid.

Additional query words: kbvfp600fix

======================================================================
Keywords          : kbvfp kbvfp500bug kbbuglist
Technology        : kbVFPsearch kbAudDeveloper kbVFP500 kbVFP500a
Version           : 5.0 5.0a
Issue type        : kbbug
Solution Type     : kbfix

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