Q191997: BUG: BackColor/ForeColor of Grid Not Carried Over to Subclass

Article: Q191997
Product(s): Microsoft FoxPro
Version(s): WINDOWS:5.0,5.0a,6.0
Operating System(s): 
Keyword(s): 
Last Modified: 19-AUG-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0 
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SYMPTOMS
========

When changing the BackColor or ForeColor properties of a grid class's header in
the Class Designer to some other color, the grid header remains in the default
color after subclassing the class on to a new form.

RESOLUTION
==========

- Create the grid class definition through code, then add the grid to the form
  using the AddObject method. Please see step 1 in the Workaround section for
  further instruction.

  -or-

- Change the Backcolor or ForeColor properties of the Header in the subclassing
  grid.

STATUS
======

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

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

The behavior as described in the SYMPTOMS section, does not occur if the grid is
created through code rather than using the class designer.

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

1. Create a Grid class in Class Designer, named the class mygrid and save the
  class in myclass library.

2. Change the ColumnCount property of the grid to 1.

3. Go to the header object of the grid and change the following properties of
  the header object:

  " BackColor = 255,0,0 ForeColor = 0,255,0 " (without the quotation marks)

4. Close the class designer.

5. Create a new form in a form designer, named myform.

6. Add the myclass class library to the Form Controls toolbar.

7. Select mygrid from the toolbar and place it onto the form.

The Header of the grid object shows up as default color, which is gray for the
backcolor and black for the forecolor.

Workaround
----------

1. Create a program (.prg) named Gridclass.prg and put the following code in the
  .prg file:

        DEFINE CLASS grid1 AS Grid
           ADD OBJECT column11 AS column1
        ENDDEFINE

        DEFINE CLASS column1 AS Column
           Width = 120
           ADD OBJECT header11 AS header1
        ENDDEFINE

        DEFINE CLASS header1 AS Header
           ForeColor = rgb(0,255,0)
           BackColor=rgb(255,0,0)
        ENDDEFINE

2. Create a form and in the Init event of the form place the following code:

        SET PROCEDURE TO gridclass.prg
        Thisform.AddObject("mygrid","grid1")
        Thisform.mygrid.Visible = .T.

3. Run the form and the grid header shows up with the backcolor and forecolor
  you expect.

Additional query words: kbVFp600bug kbVFp500abug kbCtrl kbContainer kbDesigner kbOOP

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Keywords          :  
Technology        : kbVFPsearch kbAudDeveloper kbVFP500 kbVFP600 kbVFP500a
Version           : WINDOWS:5.0,5.0a,6.0
Issue type        : kbbug
Solution Type     : kbnofix

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