Windows Phone Play MP3 or Video MediaElement from Isolated Storage (Application Storage)

Imports System.IO
Imports System.IO.IsolatedStorage
Imports System.Windows.Media.Imaging

Partial Public Class MainPage
    Inherits PhoneApplicationPage

    ' Constructor
    Public Sub New()
        InitializeComponent()

        AddHandler Loaded, AddressOf MainPage_Loaded
    End Sub

    Private Sub MainPage_Loaded(sender As Object, e As System.Windows.RoutedEventArgs)
        Dim isoStore As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()

        Dim files As String() = isoStore.GetFileNames("*")

        Dim myfile As New List(Of myMedia)

        For Each dirfile As String In files
            myfile.Add(New myMedia(dirfile.ToString()))
        Next


        Me.myList.ItemsSource = myfile

    End Sub

    Private Sub myList_SelectionChanged(sender As Object, e As SelectionChangedEventArgs)
        Dim data As myMedia = TryCast(TryCast(sender, ListBox).SelectedItem, myMedia)
        'MessageBox.Show(data.MediaName)
        NavigationService.Navigate(New Uri("/DetailPage.xaml?MediaName=" + data.MediaName, UriKind.Relative))

        'Dim selectedItem As ListBoxItem = TryCast(Me.GalleryList.ItemContainerGenerator.ContainerFromItem(data), ListBoxItem)
    End Sub

End Class



Public Class myMedia

    Public Property MediaName() As String
        Get
            Return m_MediaName
        End Get
        Set(value As String)
            m_MediaName = value
        End Set
    End Property

    Public Property MediaSize() As String
        Get
            Return m_MediaSize
        End Get
        Set(value As String)
            m_MediaSize = value
        End Set
    End Property

    Private m_MediaName As String
    Private m_MediaSize As String

    Public Sub New(ByVal strMediaName As String)
        Me.MediaName = strMediaName

        '*** Image Binary ***'
        Dim isoStore As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()
        Dim isoFilename As String = strMediaName
        Dim stream As Stream = isoStore.OpenFile(isoFilename, System.IO.FileMode.Open)

        '*** Image Size ***'
        Me.MediaSize = stream.Length & " Bytes"

        stream.Close()

    End Sub

End Class

using System;
using System.Windows;
using System.Net;
using System.IO;
using System.Text;
using System.IO.IsolatedStorage;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using System.Collections.Generic;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using System.ComponentModel;

namespace PhoneApp
{
    public partial class MainPage : PhoneApplicationPage
    {

        // Constructor
        public MainPage()
        {
            InitializeComponent();

            Loaded += MainPage_Loaded;
        }

        private void MainPage_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
            IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication();

            string[] files = isoStore.GetFileNames("*");

            List<myMedia> myfile = new List<myMedia>();

            foreach (string dirfile in files)
            {
                myfile.Add(new myMedia(dirfile.ToString()));
            }


            this.myList.ItemsSource = myfile;

        }

        private void myList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            myMedia data = (sender as ListBox).SelectedItem as myMedia;
            //MessageBox.Show(data.MediaName)
            NavigationService.Navigate(new Uri("/DetailPage.xaml?MediaName=" + data.MediaName, UriKind.Relative));

            //Dim selectedItem As ListBoxItem = TryCast(Me.GalleryList.ItemContainerGenerator.ContainerFromItem(data), ListBoxItem)
        }

    }

    public class myMedia
    {

        public string MediaName
        {
            get { return m_MediaName; }
            set { m_MediaName = value; }
        }

        public string MediaSize
        {
            get { return m_MediaSize; }
            set { m_MediaSize = value; }
        }

        private string m_MediaName;

        private string m_MediaSize;
        public myMedia(string strMediaName)
        {
            this.MediaName = strMediaName;

            //*** Image Binary ***'
            IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication();
            string isoFilename = strMediaName;
            Stream stream = isoStore.OpenFile(isoFilename, System.IO.FileMode.Open);

            //*** Image Size ***'
            this.MediaSize = stream.Length + " Bytes";

            stream.Close();

        }

    }
}

    <!--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">
            <Button Content="Back" Height="72" HorizontalAlignment="Left" Margin="147,10,0,0" Name="btnBack" Click="btnBack_Click" VerticalAlignment="Top" Width="160" />
            <MediaElement Height="288" HorizontalAlignment="Left" Margin="49,116,0,0" Name="MediaElement1" VerticalAlignment="Top" Width="366" />
            <Slider Height="84" HorizontalAlignment="Left" Margin="6,454,0,0" Name="Slider1" VerticalAlignment="Top" Width="444" />
        </Grid>
    </Grid>