我在wpf中有两个组合框,其中一个组合框看起来像这样：
@H_502_2@<ComboBox Height="23" HorizontalAlignment="Left" Margin="244,10,0" Name="comboBox2" VerticalAlignment="Top" Width="120">
<ComboBoxItem Content="Peugeut" />
<ComboBoxItem Content="Ford" />
<ComboBoxItem Content="BMW" />
</ComboBox>
我想知道如何绑定第二个comboBox2以列出特定于caroBox1中所选项目的carc.
如果Peurgeut被选中,那么在组合框2中应该有一个列表：
@H_502_2@106 206 306或者如果选择了宝马那么
@H_502_2@4 series 5 series等等
解决方法
@H_502_2@<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="50"/>
</Grid.RowDefinitions>
<ComboBox Height="23" ItemsSource="{Binding Cars}" DisplayMemberPath="Name" HorizontalAlignment="Left" Margin="244,0" Name="comboBox1" VerticalAlignment="Top" Width="120"/>
<ComboBox Height="23" Grid.Row="1" ItemsSource="{Binding SelectedItem.Series,ElementName=comboBox1}" HorizontalAlignment="Left" Margin="244,0" Name="comboBox2" VerticalAlignment="Top" Width="120"/>
</Grid>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
Cars = new ObservableCollection<Car>();
Cars.Add(new Car() { Name = "Peugeut",Series = new ObservableCollection<string>() { "106","206","306" } });
Cars.Add(new Car() { Name = "Ford",Series = new ObservableCollection<string>() { "406","506","606" } });
Cars.Add(new Car() { Name = "BMW",Series = new ObservableCollection<string>() { "706","806","906" } });
DataContext = this;
}
public ObservableCollection<Car> Cars { get; set; }
}
public class Car
{
public string Name { get; set; }
public ObservableCollection<string> Series { get; set; }
}
我希望这将有所帮助.
