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.

Changing the code to this solved the problem:

do case
case lcState = 'SAVE'
thisform.Agent_list.requery()
otherwise
return .f.
endcase

Question: is this a workaround? Will it cause me problems? Am I ignoring a larger problem?

TIA.