(read only)


This method sets the first element of active class to be the Active element in the active circuit. Returns 0 if none.


Example


% Create DSS object

DSSObject = actxserver('OpenDSSEngine.DSS')

if ~DSSObject.Start(0),

                    disp('Unable to start openDSS');

                    return

end;

DSSText = DSSObject.Text;

DSSCircuit = DSSObject.ActiveCircuit;

% Sets 'Load' as the active class

DSSCircuit.SetActiveClass('Load');

% Sets the first load on the list as the active element

i = DSSCircuit.FirstElement;