摘要:
主要思路:把省的ItemsSource绑定DataContext,然后给市的ItemsSource绑定到Element(省)的SelectedItem上xaml 1 5 6 7 8 9 10 11 XAML 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Windows; 6 using System.Windows.Controls; ... 阅读全文