We pass data from parent to child component, so when we select county in drilldown map it will fire event back to parent component where it update the selected counties array and return the updated data to child component.
Scenario
Country -> click to drilldown down -> State with showing pre-selected counties -> click on county will trigger event to parent and in return parent will return updated set of selected counties which we need to update on the drilldown state map with selection.
It can vice versa where we have counties available as list on parent component and on click on county we need to update the drilldown map if that given state is open, hope you got the point.
Please let me know how we can hook in and update the map with updated selection.
Waiting for response asap.