Normally when I want to set a grid column controlsource to run a form method, I will do something like this:

grid1.column1.controlsource = [thisform.mymethod('myvalue')]

and it works fine. However, I need to pass that to a another form to set the control source for it's grid to the same method in the 1st form (calling form). I build a form array to store the value for all the columns' controlsource, then I look at that array in the called form:

In form 1 (calling form):

thisform.myarray(1,1) = "[thisform.poform.mymethod('myvalue')]"

In form 2 (called form):

LPARAMATERS toForm && form called by which contains the array and the method
THISFORM.poForm = toForm
*--An example but shows what I'm doing
FOR i = 1 TO ALEN(toform.myarray,1)
   WITH THISFORM.grid1.Columns[i]
      lcType = TYPE(toform.myarray[i,1])
      do case
      case lcType = "C" && this works, even with the UDF
        .width = && a computation that works
      endcase
      .controlsource = toForm.myarray[i,1] && normally this is just a field name
      * for the udf toForm.myarray[i,1] = "[thisform.poform.mymethod('myvalue')]" without quotes
      * so it does not work for udfs, it ends up the character string thisform.poform.mymethod('myvalue')
      * when the udf call is in a variable, how to set it here?
   ENDWITH
ENDFOR

I've tried a dozen or more variations of storing the value in the array in the 1st form and checking it in the 2nd form.