Parent works only for container/object relationship. To access the calling object properties, you need to pass the object reference to the child object.

Ex.:
Parent:
loChild = CreateObject("ChildClass", THIS)

Child.Init()
LPARAMETERS toParent
THIS.oParent = toParent

Child.SomeMethod():
THIS.oParent.Counter = THIS.oParent.Counter + 1

HTH

>I am new to VFP OO coding & am having problems with one object modifying the properties of its parent.
>
>ex.
>oOne is created from a nonvisual class (OBJECT1), it creates an instance of OBJECT2 (oTWO), another class defined in the same prg file.
>
>Part of oTWO's job is to update a counter in oOne, so I include the following code in one of OJECT2's methods:
>
>THIS.PARENT.counter = THIS.PARENT.counter + 1
>
>When it executes I get the error message that THIS.PARENT is not an object & the debugger confirms this, parent = (none)
>
>I don't understand this at all. How could an oject created by another NOT have a parent value filled in?