using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace WpfApplication2

{

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            List<Person> list = new List<Person>()

            {

                new Person{Id=,Name="张三",Sex="男"},

                new Person{Id=,Name="李四",Sex="男"},

                new Person{Id=,Name="王五",Sex="女"},

                new Person{Id=,Name="赵六",Sex="男"},

                new Person{Id=,Name="孙七",Sex="女"}

            };

            cb.ItemsSource=list;

            cb.SelectedIndex = ;

        }

        private void Button_Click(object sender, RoutedEventArgs e)

        {

            if (cb.SelectedItem != null)

            {

                Person p = cb.SelectedItem as Person;

                MessageBox.Show("Id:"+p.Id.ToString()+"，姓名："+p.Name+"，性别："+p.Sex);

            }

        }

    }

    public class Person

    {

        private int id;

        public int Id

        {

            get { return id; }

            set { id = value; }

        }

        private string name;

        public string Name

        {

            get { return name; }

            set { name = value; }

        }

        private string sex;

        public string Sex

        {

            get { return sex; }

            set { sex = value; }

        }

    }

}

<Window x:Class="WpfApplication2.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="525">

    <Grid>

        <StackPanel>

            <ComboBox x:Name="cb" DisplayMemberPath="Name"/>

            <Button Content="Show" Click="Button_Click" />

        </StackPanel>

    </Grid>

</Window>