PRB: Unknown Member Error Using Thisformset.ActiveControl

   Thisformset.ActiveForm.ActiveControl.<property or method>
				

MORE INFORMATION

This is undocumented in Visual FoxPro 3.0 and is not intended to work, as Formset objects do not have an ActiveControl property in any version of Visual FoxPro.

Steps to Reproduce Behavior

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

      * Start of code example
      *
      PUBLIC oFormset
      oFormset = CREATEOBJECT('formset')
      oFormset.ADDOBJECT('form1','frm')
      oFormset.form1.VISIBLE=.T.
      oFormset.SHOW()
   
      DEFINE CLASS frm AS FORM
         CAPTION = "Click on Form to Demonstrate Error"
         ADD OBJECT text1 AS TEXTBOX WITH ;
            TOP = 100, ;
            LEFT = 120
   
         PROCEDURE CLICK
            * This will not generate an error in VFP 3.0 or 3.0b
            WAIT WINDOW THISFORMSET.ACTIVECONTROL.NAME TIMEOUT 3
         ENDPROC
   
      ENDDEFINE
      *
      * End of code example
   						

2. Click anywhere on the form (outside of the text box).
3. In Visual FoxPro 5.0 or 6.0, the error "Unknown member ACTIVECONTROL" appears. In Visual FoxPro 3.0 or 3.0b, "TEXT1" is displayed in the WAIT WINDOW.

The preceding code works without error in any version of Visual FoxPro if modified as follows:

      PROCEDURE CLICK
      * This will not generate an error in VFP 3.0, 3.0b, or 5.0
      WAIT WINDOW THISFORMSET.ACTIVEFORM.ACTIVECONTROL.NAME TIMEOUT 3
     ENDPROC