make a project with the name YouTubeApp and have a main layout at main.xaml as follows
<phone:PhoneApplicationPage
x:Class="YouTubeApp.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible="True">
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<TextBox Height="72" HorizontalAlignment="Left" Margin="-12,6,0,0" Name="textBox1" Text="Musetheplace" VerticalAlignment="Top" Width="460" />
<Button x:Name="SearchButton" Content="Search" HorizontalAlignment="Right" VerticalAlignment="Top" Click="SearchButton_Click" Margin="0,66,164,0" />
<ListBox SelectionChanged="VideoListSelectionChanged" x:Name="ResultsList" Margin="10,144,0,0">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Title}" VerticalAlignment="Top"
HorizontalAlignment="Left" Width="355" Margin="100,0,0,0" TextWrapping="Wrap"/>
<Image Source="{Binding VideoImageUrl}" HorizontalAlignment="Left" Width="100"
Height="100" Stretch="UniformToFill"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Grid>
<!--Sample code showing usage of ApplicationBar-->
<!--<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->
</phone:PhoneApplicationPage>
have a code at main.xaml.cs as follows
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;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Tasks;
using System.Xml.Linq;
namespace YouTubeApp
{
public partial class MainPage : PhoneApplicationPage
{
// Constructor
public MainPage()
{
InitializeComponent();
}
private void SearchButton_Click(object sender, RoutedEventArgs e)
{
var wc = new WebClient();
wc.DownloadStringCompleted += DownloadStringCompleted;
var searchUri = string.Format(
"http://gdata.youtube.com/feeds/api/videos?q={0}&format=6",
HttpUtility.UrlEncode(textBox1.Text));
wc.DownloadStringAsync(new Uri(searchUri));
}
void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
var atomns = XNamespace.Get("http://www.w3.org/2005/Atom");
var medians = XNamespace.Get("http://search.yahoo.com/mrss/");
var xml = XElement.Parse(e.Result);
var videos = (
from entry in xml.Descendants(atomns.GetName("entry"))
select new YouTubeVideo
{
VideoId = entry.Element(atomns.GetName("id")).Value,
VideoImageUrl = (
from thumbnail in entry.Descendants(medians.GetName("thumbnail"))
where thumbnail.Attribute("height").Value == "240"
select thumbnail.Attribute("url").Value).FirstOrDefault(),
Title = entry.Element(atomns.GetName("title")).Value
}).ToArray();
ResultsList.ItemsSource = videos;
}
private void VideoListSelectionChanged(object sender, SelectionChangedEventArgs e)
{
var video = ResultsList.SelectedItem as YouTubeVideo;
if (video != null)
{
var parsed = video.VideoId.Split('/');
var id = parsed[parsed.Length - 1];
var playbackUrl = "vnd.youtube:" + id;
var task = new WebBrowserTask { URL = playbackUrl };
task.Show();
}
}
}
public class YouTubeVideo
{
public string Title { get; set; }
public string VideoImageUrl { get; set; }
public string VideoId { get; set; }
}
}
just run the app and have fun with this app.
<phone:PhoneApplicationPage
x:Class="YouTubeApp.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible="True">
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<TextBox Height="72" HorizontalAlignment="Left" Margin="-12,6,0,0" Name="textBox1" Text="Musetheplace" VerticalAlignment="Top" Width="460" />
<Button x:Name="SearchButton" Content="Search" HorizontalAlignment="Right" VerticalAlignment="Top" Click="SearchButton_Click" Margin="0,66,164,0" />
<ListBox SelectionChanged="VideoListSelectionChanged" x:Name="ResultsList" Margin="10,144,0,0">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Title}" VerticalAlignment="Top"
HorizontalAlignment="Left" Width="355" Margin="100,0,0,0" TextWrapping="Wrap"/>
<Image Source="{Binding VideoImageUrl}" HorizontalAlignment="Left" Width="100"
Height="100" Stretch="UniformToFill"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Grid>
<!--Sample code showing usage of ApplicationBar-->
<!--<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>-->
</phone:PhoneApplicationPage>
have a code at main.xaml.cs as follows
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;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Tasks;
using System.Xml.Linq;
namespace YouTubeApp
{
public partial class MainPage : PhoneApplicationPage
{
// Constructor
public MainPage()
{
InitializeComponent();
}
private void SearchButton_Click(object sender, RoutedEventArgs e)
{
var wc = new WebClient();
wc.DownloadStringCompleted += DownloadStringCompleted;
var searchUri = string.Format(
"http://gdata.youtube.com/feeds/api/videos?q={0}&format=6",
HttpUtility.UrlEncode(textBox1.Text));
wc.DownloadStringAsync(new Uri(searchUri));
}
void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
var atomns = XNamespace.Get("http://www.w3.org/2005/Atom");
var medians = XNamespace.Get("http://search.yahoo.com/mrss/");
var xml = XElement.Parse(e.Result);
var videos = (
from entry in xml.Descendants(atomns.GetName("entry"))
select new YouTubeVideo
{
VideoId = entry.Element(atomns.GetName("id")).Value,
VideoImageUrl = (
from thumbnail in entry.Descendants(medians.GetName("thumbnail"))
where thumbnail.Attribute("height").Value == "240"
select thumbnail.Attribute("url").Value).FirstOrDefault(),
Title = entry.Element(atomns.GetName("title")).Value
}).ToArray();
ResultsList.ItemsSource = videos;
}
private void VideoListSelectionChanged(object sender, SelectionChangedEventArgs e)
{
var video = ResultsList.SelectedItem as YouTubeVideo;
if (video != null)
{
var parsed = video.VideoId.Split('/');
var id = parsed[parsed.Length - 1];
var playbackUrl = "vnd.youtube:" + id;
var task = new WebBrowserTask { URL = playbackUrl };
task.Show();
}
}
}
public class YouTubeVideo
{
public string Title { get; set; }
public string VideoImageUrl { get; set; }
public string VideoId { get; set; }
}
}
just run the app and have fun with this app.