BUG: ActiveForm Property Returns Error When Not FormSet (191640)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 6.0
This article was previously published under Q191640

SYMPTOMS

Referencing the ActiveForm property of a form through code returns the following error:
Property ActiveForm is not found.
ActiveForm is, however, listed in the Properties dialog box of the form.

RESOLUTION

Do not reference the ActiveForm property of a form.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Even though the ActiveForm is listed as a property of the form object, it is only applicable to the FormSet object.

Steps to Reproduce Behavior

Place the following code in a program file. 
      **************************************************************
      *!* Start Error Example (Form)
      **************************************************************
      ox=CREATEOBJECT('oForm')
      ox.VISIBLE=.T.
      READ EVENTS
      *****************************************
      DEFINE CLASS oForm AS FORM
         NAME='MyFormFoo'
         ADD OBJECT oCommand AS COMMANDBUTTON
         ADD OBJECT oClose AS COMMANDBUTTON

         PROCEDURE INIT
            THIS.oCommand.LEFT=100
            THIS.oCommand.TOP=100
            THIS.oClose.LEFT=100
            THIS.oClose.TOP=200
         ENDPROC

         PROCEDURE oCommand.CLICK
            WAIT WINDOW   THISFORM.ACTIVEFORM.NAME
         ENDPROC

         PROCEDURE oClose.CLICK
            CLEAR EVENTS
            RELEASE THISFORM
         ENDPROC

      ENDDEFINE
      **************************************************************
      *!* End Error Example (Form)
Run the program and click the oCommand button. This returns the following error:
Property ActiveForm is not found.
Modification Type:MajorLast Reviewed:8/6/1999
Keywords:kbbug KB191640
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