Managing selection between views
ILcdSelection allows you to select domain objects from a model contained in a layer. Consider this case:
Multiple views share the same
ILcdModelbut do not share the layer that contains the model.
Layers cannot be shared between Lightspeed views.
A change in object selection occurs in one of the layers.
You must notify all layers containing the same model of the change, and call the method
selectObject on these layers to synchronize the selection.
The utility class
TLcdSelectionMediator provides a convenient way to handle selection among
ILcdLayered objects, or views. You need to initialize the class with two arrays of
ILcdLayered objects. One array acts as a master or source and contains all the
ILcdLayered objects that listen to selection changes in the
ILcdLayer objects it contains. The other array acts as a slave and contains all the
ILcdLayered objects that must be synchronized upon a selection change in one of the master objects. The selection of a layer that belongs
to a slave
ILcdLayered is updated if that layer refers to the same
To keep views synchronized constantly, you can select the same array to act as master and slave.