silverlight - How to use image in a ComboBox ItemTemplate

how to use image in ComboBox ItemTemplate in silverlight
MainPage.xaml

<UserControl 
    x:Class="SilverlightApps.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="600" 
    d:DesignWidth="800" 
    xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
    >

    <Grid x:Name="LayoutRoot" Background="White">
        <Rectangle
            Name="Rectangle1"
            Fill="AliceBlue" 
            HorizontalAlignment="Left" 
            Height="82" 
            Margin="20,12,0,0" 
            Stroke="Black" 
            VerticalAlignment="Top" 
            Width="600"
            StrokeThickness="0"
            />

        <TextBlock 
            Name="TextBlock1" 
            Height="82" 
            HorizontalAlignment="Left" 
            Margin="20,9,0,0" 
            Text="how to use image in ComboBox ItemTemplate in silverlight"
            VerticalAlignment="Top"
            TextWrapping="Wrap"
            FontSize="20"
            FontStyle="Italic"
            Foreground="MidnightBlue"
            Width="600"
            Padding="25,10,10,0"
            />

        <ComboBox 
            Name="ComboBox1"
            HorizontalAlignment="Left"
            Height="110"
            Width="435"
            Margin="20,113,0,387"
            >
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Vertical">
                        <StackPanel Orientation="Horizontal" Margin="1" Background="Snow">
                            <Image 
                                Source="{Binding ImageURL}"
                                Width="75"
                                />
                            <StackPanel Orientation="Vertical">
                                <TextBlock
                                    Text="{Binding BookName}" 
                                    Foreground="MidnightBlue"
                                    FontFamily="Georgia"
                                    FontWeight="Bold"
                                    FontSize="14"
                                    TextWrapping="Wrap"
                                    Width="325"
                                    Padding="15,15,0,0"
                                    />
                                <TextBlock 
                                    Text="{Binding Author}" 
                                    Foreground="DimGray"
                                    FontFamily="Comic Sans MS"
                                    FontStyle="Italic"
                                    TextWrapping="Wrap"
                                    Width="325"
                                    Padding="15,0,0,0"
                                    />
                                <TextBlock 
                                    Text="{Binding Price}" 
                                    Foreground="Magenta"
                                    FontFamily="Courier New"
                                    FontWeight="ExtraBlack"
                                    TextWrapping="Wrap"
                                    Width="325"
                                    Padding="15,0,0,0"
                                    />
                            </StackPanel>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>
    </Grid>
</UserControl>
MainPage.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApps
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            List<Book> Books = new List<Book>();

            //this blog are not the book images owner
            //here we uses those images for only example purpose
            //all books images owner are as ImageURL (image source)

            Books.Add(
                new Book(
                        "Professional Visual Studio 2010",
                        "Nick Randolph, David Gardner, Chris Anderson, Michael Minutillo",
                        "US $49.99",
                        "http://media.wiley.com/product_data/coverImage/57/04705486/0470548657.jpg"
                        )
                    );

            Books.Add(
                new Book(
                        "Professional WCF 4: Windows Communication Foundation with .NET 4",
                        "Pablo Cibraro, Kurt Claeys, Fabio Cozzolino, Johann Grabner",
                        "US $49.99",
                        "http://media.wiley.com/product_data/coverImage/41/04705631/0470563141.jpg"
                        )
                    );

            Books.Add(
                new Book(
                        "Professional Enterprise .NET",
                        "Jon Arking, Scott Millett",
                        "US $49.99",
                        "http://media.wiley.com/product_data/coverImage/13/04704476/0470447613.jpg"
                        )
                    );

            Books.Add(
                new Book(
                        "Professional Windows Workflow Foundation",
                        "Todd Kitta",
                        "US $49.99",
                        "http://media.wiley.com/product_data/coverImage/60/04700538/0470053860.jpg"
                        )
                    );

            Books.Add(
                new Book(
                        "Professional WCF Programming: .NET Development with the Windows Communication Foundation",
                        "Scott Klein",
                        "US $39.99",
                        "http://media.wiley.com/product_data/coverImage/49/04700898/0470089849.jpg"
                        )
                    );

            ComboBox1.ItemsSource = Books;
        }

        public class Book
        {
            public String BookName { get; set; }
            public String Author { get; set; }
            public String Price { get; set; }
            public String ImageURL { get; set; }

            public Book(String bookname, String author, String price, String imageurl)
            {
                this.BookName = bookname;
                this.Author = author;
                this.Price = price;
                this.ImageURL = imageurl;
            }
        }
    }
}
More silverlight examples