>The objects that create such references should clean up after themselves in Destroy. Otherwise those objects cannot be released and form cannot be released as well.
>

>    Thisform.oGrid = NULL
>

>>I have a form in which I have saved references to some of the objects in the form -- the Init for these objects look like:
>>
>> Thisform.oGrid = This
>>
>>This allows me to reference the grid without knowing its full containership.
>>
>>So, my question is this: when the form is closing, there are all these references to objects contained in ThisForm. Do I need to clean them up, or is this not a problem?
>>
>>Thanks in advance.

I have a property on my form, which is an Object that has other Object properties on it. So, I'm wondering if I could create a generic methdod that would basically scan the entire passed-in object and set every property that begings with the letter 'o' to null.

Something like this:

Procedure Form.Destroy()
 
 this.DestroyObectRefProperties(this.oSomeObject)

EndProc

Some psuedo code here...

Procedure DestroyObjectRefProperties(toObject)

for each property on toObject
 if property.name begins with 'o'
  property = .null.
 endif
endfor

EndProc

So, how can you scan the over the properties like above, without having to know the property names?