DOCUMENT:Q140304  10-FEB-2000  [foxpro]
TITLE   :How to Remove Objects from a Container at Run Time
PRODUCT :Microsoft FoxPro
PROD/VER:WINDOWS:3.0
OPER/SYS:
KEYWORDS:kbcode

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

 - Microsoft Visual FoxPro for Windows, version 3.0 
-------------------------------------------------------------------------------

SUMMARY
=======

This article shows by example how to remove objects from a form or any other
container within a form at run time. Specifically, it shows how to create a
toolbar that has a single command button that can remove all of the objects from
an active form.

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

Using the RemoveObject method, and an array created using the AMEMBERS()
function, you can remove all of the objects from within any container object.

Step-by-Step Example
--------------------

1. Create a program containing the following code:

      PUBLIC oRemoveIt
      oRemoveIt=CREATEOBJECT("RemoveIt")
      oRemoveIt.SHOW
      oRemoveIt.DOCK(0)      && This docks the toolbar on the top

      DEFINE CLASS RemoveIt AS toolbar
         Height = 27
         Left = 0
         Top = 0
         Width = 665
         Name = "RemoveIt"

         ADD OBJECT command1 AS commandbutton WITH ;
            Top = 4, ;
            Left = 6, ;
            Height = 24, ;
            Width = 24, ;
            FontSize = 8, ;
            Picture = "C:\VFP\Samples\Graphics\BMPs\Fox\Delete.bmp", ;
            Caption = "", ;
            Default = .F., ;
            ToolTipText = "Remove Objects From Active Form", ;
            Name = "Command1"

         PROCEDURE command1.Click
            IF TYPE('_screen.ActiveForm')=='O'
               IF NOT ISNULL (_Screen.ActiveForm)
                  =AMEMBERS(FormObjects,_Screen.ActiveForm,2)
                  FOR i = 1 to ALEN(FormObjects)
                     _Screen.ActiveForm.RemoveObject(FormObjects(i))
                  ENDFOR
               ENDIF
            ELSE
               =MESSAGEBOX("No Form is currently open.","")
            ENDIF
         ENDPROC

      ENDDEFINE

2. Save and run the program. The result should be a single tool button on a
   toolbar that is docked at the top of the main Visual FoxPro window. If the
   tool button is clicked while a form is open, all of the form's objects will
   be removed.

Additional query words: VFoxWin

======================================================================
Keywords          : kbcode 
Technology        : kbVFPsearch kbAudDeveloper kbVFP300
Version           : WINDOWS:3.0

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

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.

Copyright Microsoft Corporation 2000.