how to run a video in silver light

design the page

<UserControl x:Class="SilverlightApplication.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="400" d:DesignWidth="800">
    <Grid x:Name="LayoutRoot" Background="White" HorizontalAlignment="Center">
        <StackPanel Orientation="Vertical">
            <MediaElement Height="200" AutoPlay="False" Source="h.wmv" HorizontalAlignment="Left" Margin="10,10,0,0" Name="mediaElement1" VerticalAlignment="Top" Width="400" />
        </StackPanel>
        <StackPanel Orientation="Horizontal"  Margin="10,60,0,0">
            <Button Content="Play" Height="23" Name="button1" Width="75" Click="button1_Click" />
            <Button Content="Stop" Height="23" Name="button2" Width="75" Click="button2_Click" />
        </StackPanel>
    </Grid>
</UserControl>

the page looks like :

right click on the  projdect

select a video  file(.wmv) from ur system then right click on the video file on then select the property

set two properties of the video file that is Build Action, copy to outputdirectory

then go to the code :

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 SilverlightApplication
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            if (button1.Content.ToString() == "Play")
            {
                mediaElement1.Play();
                button1.Content = "Pause";
            }
            else
            {
                mediaElement1.Pause();
                button1.Content = "Play";
            }
        }

        private void button2_Click(object sender, RoutedEventArgs e)
        {
            mediaElement1.Stop();
        }
    }
}