一:根据数据源类型获取选中项 类: public class Region { public int REGION_ID { get; set; } public string REGION_CODE { get; set; } public string REGION_NAME { get; set; } public int PARENT_ID { get; set; } } 数据源绑定: //绑定国家 cbe_Nationality.ItemsSource = new List<Regio…