>>>How do I reference a control on another form from the current form? i.e. Thisform.controlname.value would be the value of a control on the current form. How do you say Theotherform.controlname.value?
>>>
>>>Thanks
>>>JD
>>
>>Loop through the _Screen.Forms[] collection for the other form (you can check the name property) and when found use it.
>
>What is the _Screen.Forms[] collection?

Whenever you issue a DO FORM command or CREATEOBJECT('form'), an object reference to your form is added to a property of _Screen called Forms. This is an array property that has references to all active forms.

To loop through it:

lparameter tcformname
local luretval
luretval = .NULL.
for lxx = 1 to _Screen.Formcount
   if upper(_Screen.Forms[lxx].BaseClass) = "FORM" ;  && could be a toolbar
      and upper(_Screen.Forms[lxx].Name) = upper(tcformname) then
      luretval = _Screen.Forms[lxx]
      exit
   endif
endfor
return luretval

Check the return value with ISNULL() and if it isn't, then you now have an object reference to your other form.

HTH.