Master Detail Binding

   
  

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MasterDetailBinding"
    xmlns:local="clr-namespace:WpfApplication1">
  <Window.Resources>
    <local:Companies x:Key="Companies">
      <local:Company CompanyName="Stooge">
        <local:Company.Members>
          <local:Team>
            <local:Employee Name="Larry" Age="21">
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="A" />
                  <local:Skill Description="B" />
                  <local:Skill Description="C" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
            <local:Employee Name="Moe" Age="22" >
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="D" />
                  <local:Skill Description="E" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
            <local:Employee Name="Curly" Age="23" >
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="F" />
                  <local:Skill Description="G" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
          </local:Team>
        </local:Company.Members>
      </local:Company>
      <local:Company CompanyName="Addams">
        <local:Company.Members>
          <local:Team>
            <local:Employee Name="Gomez" Age="135" >
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="H" />
                  <local:Skill Description="Z" />
                  <local:Skill Description="Q" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
            <local:Employee Name="Morticia" Age="121" >
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="R" />
                  <local:Skill Description="P" />
                  <local:Skill Description="L" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
            <local:Employee Name="Fester" Age="137" >
              <local:Employee.Skills>
                <local:Skills>
                  <local:Skill Description="R" />
                  <local:Skill Description="S" />
                  <local:Skill Description="U" />
                </local:Skills>
              </local:Employee.Skills>
            </local:Employee>
          </local:Team>
        </local:Company.Members>
      </local:Company>
    </local:Companies>
  </Window.Resources>
  <Grid DataContext="{StaticResource Companies}">
    <Grid.RowDefinitions>
      <RowDefinition Height="Auto" />
      <RowDefinition />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
      <ColumnDefinition />
      <ColumnDefinition />
      <ColumnDefinition />
    </Grid.ColumnDefinitions>
    <TextBlock Grid.Row="0" Grid.Column="0">Companies:</TextBlock>
    <ListBox Grid.Row="1" Grid.Column="0" ItemsSource="{Binding}" IsSynchronizedWithCurrentItem="True">
      <ListBox.ItemTemplate>
        <DataTemplate>
          <TextBlock Text="{Binding Path=CompanyName}" />
        </DataTemplate>
      </ListBox.ItemTemplate>
    </ListBox>
    <StackPanel Grid.Row="0" Grid.Column="1" Orientation="Horizontal">
      <TextBlock Text="{Binding Path=CompanyName}" />
      <TextBlock Text=" Company Members:" />
    </StackPanel>
    <ListBox Grid.Row="1" Grid.Column="1" ItemsSource="{Binding Path=Members}" IsSynchronizedWithCurrentItem="True">
      <ListBox.ItemTemplate>
        <DataTemplate>
          <TextBlock>
            <TextBlock Text="{Binding Path=Name}" />
            (age: <TextBlock Text="{Binding Path=Age}" />)
          </TextBlock>
        </DataTemplate>
      </ListBox.ItemTemplate>
    </ListBox>
    <StackPanel Grid.Row="0" Grid.Column="2" Orientation="Horizontal">
      <TextBlock Text="{Binding Path=Members/Name}" />
      <TextBlock Text=" Skills:" />
    </StackPanel>
    <ListBox Grid.Row="1" Grid.Column="2" ItemsSource="{Binding Path=Members/Skills}" IsSynchronizedWithCurrentItem="True">
      <ListBox.ItemTemplate>
        <DataTemplate>
          <TextBlock Text="{Binding Path=Description}" />
        </DataTemplate>
      </ListBox.ItemTemplate>
    </ListBox>

  </Grid>
</Window>

//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Collections.ObjectModel;


namespace WpfApplication1 {

  public class Skill {
    string description;
    public string Description {
      get { return description; }
      set { description = value; }
    }
  }

  public class Skills : ObservableCollection<Skill> { }

  public class Employee {
    string name;
    public string Name {
      get { return name; }
      set { name = value; }
    }

    int age;
    public int Age {
      get { return age; }
      set { age = value; }
    }

    Skills traits;
    public Skills Skills {
      get { return traits; }
      set { traits = value; }
    }
  }

  public class Team : ObservableCollection<Employee> { }

  public class Company {
    string familyName;
    public string CompanyName {
      get { return familyName; }
      set { familyName = value; }
    }

    Team members;
    public Team Members {
      get { return members; }
      set { members = value; }
    }
  }

  public class Companies : ObservableCollection<Company> { }

  public partial class Window1 : Window {
    public Window1() {
      InitializeComponent();
    }
  }
}