A co-worker is attempting to set up a method to do error checking on save for a VFP 5.0 Form. He is attempting to alter the wizzard class form to run the method, but is getting this error on save:

Mehtods and events cannot contain nested proceedures or custom classes.

Any ideas on how to make Fox Pro happy?

Here is the code:


function verifydata(blnerror)
verifydata = .f.
do case
case blnerror=.t.
if thisform.txtos.value =""
messagebox('Please enter the currently used operating system.',0+48,'Field Error')
return verifydata=.f.
exit
endif
case blnerror=.f.
endcase
if alltrim(thisform.txtdatesubmitted.value) = ""
set date to american, long
endif
if alltrim(thisform.txtlanme.value)=""
messagebox('Last Name must have a value.',0+48,'Field Error')
return verifydata=.f.
exit
endif
if alltrim(thisform.txtfname.value)=""
messagebox('First Name must have a value.',0+48,'Field Error')
return verifydata=.f.
exit
endif
if alltrim(thisform.txtphone.value)=""
messagebox('A telephone # must be entered.',0+48,'Field Error')
return verifydata=.f.
exit
endif
if thisform.cbosystem.text = ""
messagebox('A system type must be selected.',0+48,'Field Error')
return verifydata=.f.
exit
endif
if thisform.txtsysver.value=""
messagebox('Current system version must have a value.',0+48,'Field Error')
return verifydata=.f.
exit
endif
return verifydata=.t.
endfunc