i have this code but i believe that is correct then when i run it, there is an error code 1924...this is my code..

do form C:\LibrarySystem\Form\transaction
transaction.pageframe1.page1.enabled = .t.
transaction.pageframe1.ActivePage=1
transaction.pageframe1.page2.enabled = .f.
transaction.pageframe1.page3.enabled = .f.

i attach image for the error...
thank you...