This is regarding the components configured in the lay-out container in template editor,in one of component we need to define a policy that data entered in one of the widget should be automatically populated into widget in cq:Dialog(actuall component dialog).If any one come across and implementing this kind of use case.Please help me.
I am not following your use case. Are you asking if a user enters data into a component dialog used in component, that data should be used to dynamically update another component dialog.