>>I need to do some validation based on the existance of a property in a form is any command that can be issued like ...
>>
>>if exists(thisform.myproperty)
>> myvariable=thisform.myproperty
>>endif
>>
>>
>>thanks
>>
>>
>>Norman
>
>See the help of PEMSTATUS() function for more info.

Also you can simply do the follwing

IF TYPE('thisform.Myprop') # 'U'
ENDIF