1. Introduction
This demo mainly realizes the three-level linkage function of provinces, cities and counties through the selectChanged events of do_ComboBox and do_Picker
Second, the effect map
3. Source address
https://github.com/do-project/code4do/tree/master/select_address_demo
4. Related discussion address
http://bbs.deviceone.net/forum.php?mod=viewthread&tid=844&highlight=%E5%9C%B0%E5%8C%BA
Five, more source code