UWP - ComboBox ItemTemplate example

MainPage.xaml

<Page
    x:Class="UniversalAppTutorials.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UniversalAppTutorials"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <StackPanel 
        x:Name="stack_panel1" 
        Orientation="Vertical"
        Background="LightSkyBlue"
        Padding="50"
        >
        <ComboBox 
            x:Name="ComboBox1" 
            Header="Select A Book"
            SelectionChanged="ComboBox1_SelectionChanged"
            >
            <ComboBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel 
                        Orientation="Vertical" 
                        Background="LightGoldenrodYellow"
                        Padding="8"
                        BorderBrush="Crimson"
                        BorderThickness="0,0,0,2"
                        >
                        <TextBlock
                            Text="{Binding BookName}"
                            FontWeight="Black"
                            FontFamily="Calibri"
                            FontSize="20"
                            TextWrapping="Wrap"
                            />
                        <TextBlock
                            Text="{Binding Author}"
                            FontStyle="Italic"
                            />
                        <TextBlock
                            Text="{Binding Price}"
                            Foreground="Navy"
                            />
                    </StackPanel>
                </DataTemplate>
            </ComboBox.ItemTemplate>
        </ComboBox>
    </StackPanel>
</Page>

MainPage.xaml.cs

using Windows.UI.Xaml.Controls;
using Windows.UI.Popups;
using System.Collections.Generic;


namespace UniversalAppTutorials
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();

            // Initialize a new list of books
            List<Book> books = new List<Book>();

            // Add some items to collection
            books.Add(
                new Book(
                            "Professional Visual Studio 2012",
                            "Bruce Johnson",
                            "$59.99"
                    )
                );

            books.Add(
                new Book(
                            "Beginning ASP.NET for Visual Studio 2015",
                            "William Penberthy",
                            "$45.00"
                    )
                );

            books.Add(
                new Book(
                            "Beginning ASP.NET 4.5.1: in C# and VB",
                            "Imar Spaanjaars",
                            "$44.99"
                    )
                );

            books.Add(
                new Book(
                            "Professional C++, 3rd Edition",
                            "Marc Gregoire",
                            "$49.99 "
                    )
                );

            // Specify the ComboBox item source
            ComboBox1.ItemsSource = books;
        }

        public class Book
        {
            public string BookName { get; set; }
            public string Author { get; set; }
            public string Price { get; set; }

            public Book(string bookName, string author, string price)
            {
                this.BookName = bookName;
                this.Author = author;
                this.Price = price;
            }
        }

        private void ComboBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            // Get the instance of ComboBox
            ComboBox comboBox = sender as ComboBox;

            // Get the ComboBox selected item as a Book
            Book selectedBook = comboBox.SelectedItem as Book;

            // Initialize a new message dialog
            MessageDialog dialog = new MessageDialog(
                "Selected : \n"
                + selectedBook.BookName + "\n"
                + selectedBook.Author + "\n"
                + selectedBook.Price
                );

            // Finally, display the selected item details on dialog
            dialog.ShowAsync();
        }
    }
}