Bob,

>In implementing subject and observer for the first time, I was having trouble with this code (suggested by the MM devguide) in the observer (agent_list) ProcessUpdate method:
>
>if lcType = "agent"
> do case
> case lcState = 'SAVE'
> thisform.Agent_list.requery()
> otherwise
> return .f.
> endcase
>endif
>
>The code was bombing out with "operator/operand type mismatch" because lcType always evaluated to .f.

I checked this out and just realized there's an error in the Developer's Guide...the code to retrieve the type of the Subject should be:

lcType = loState.cSubjectType

That said, you only need to check the type of the Subject if your Observer has subscribed to more than one subject. My apologies for the confusion!

Regards,