How do you bind a control property to the property of a child object of a parent object and enable bi-directional synchronous object-control binding?

Client
     Address
        Address2

txtPhysAdd2.DataBindings.Add("Text", _Client.Physical, "Address2");

This line of code compiles just fine but does nothing because the property changed event is never fired as it is null... 

All controls bound to properties of the parent  _Client object fire and update just fine using the standard EventHandler callback using the conventional (property name)Changed event naming syntax...

The children of the main object will not play... 

 CW