Binding的path读取对象的子集合赋值,该怎么处理

Binding的path读取对象的子集合赋值

C# code

  List<County> c_list = new List<County>();            City city = new City();            city.Name = "City";            Province p = new Province();            p.Name = "Province";            p.CityList = new List<City>() { city};            County c = new County();            c.Name = "County";            c.ProvinceList = new List<Province>() { p};            c_list.Add(c);            this.txt_city.SetBinding(TextBox.TextProperty, new Binding("/Name") { Source=c_list});            this.txt_province.SetBinding(TextBox.TextProperty, new Binding("/ProvinceList.Name") { Source = c_list });            this.txt_county.SetBinding(TextBox.TextProperty, new Binding("/ProvinceList/CityList.Name") { Source = c_list });

C# code

<StackPanel>                <TextBox x:Name="txt_city" Margin="5" BorderBrush="Red"/>                <TextBox x:Name="txt_province" Margin="5" BorderBrush="Red"/>                <TextBox x:Name="txt_county" Margin="5" BorderBrush="Red"/>            </StackPanel>

C# code

this.txt_city.SetBinding(TextBox.TextProperty, new Binding("/Name") { Source = c_list });this.txt_province.SetBinding(TextBox.TextProperty, new Binding("/ProvinceList[0].Name") { Source = c_list });this.txt_county.SetBinding(TextBox.TextProperty, new Binding("/ProvinceList[0].CityList[0].Name") { Source = c_list });