binding combobox to another combobox in wpf

binding, c#, html, wpf

Solution

    <Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="50"/>
        <RowDefinition Height="50"/>
    </Grid.RowDefinitions>

    <ComboBox Height="23" ItemsSource="{Binding Cars}" DisplayMemberPath="Name" HorizontalAlignment="Left" Margin="244,10,0,0" Name="comboBox1" VerticalAlignment="Top" Width="120"/>
    <ComboBox Height="23" Grid.Row="1" ItemsSource="{Binding SelectedItem.Series, ElementName=comboBox1}" HorizontalAlignment="Left" Margin="244,10,0,0" 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; }
}

I hope this will help.

Problem

I have two combo boxes in wpf one of the combo boxes looks like so: ``` <ComboBox Height="23" HorizontalAlignment="Left" Margin="244,10,0,0" Name="comboBox2" VerticalAlignment="Top" Width="120"> <ComboBoxItem Content="Peugeut" /> <ComboBoxItem Content="Ford" /> <ComboBoxItem Content="BMW" /> </ComboBox> ``` I was wondering how you bind the second combobox2 to list specifc car makes to the selected item in combobox1. If Peurgeut is selected then in combobox two there should be a list: ``` 106 206 306 ``` or if bmw is selected then ``` 4 series 5 series ``` And so on

Original source