SL中MediaElement（视频播放）

 1 <UserControl x:Class="SL1.SLMedia"
 2     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 5     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 6     mc:Ignorable="d"
 7     d:DesignHeight="300" d:DesignWidth="400">
 8     
 9     <Grid x:Name="LayoutRoot" Background="White">
10         <MediaElement x:Name="mePalyer" MinWidth="1"  Source="vedio/1.mp4" Margin="0,0,0,50" MediaOpened="mePalyer_MediaOpened"></MediaElement>
11         <Button x:Name="btnPlay" Content="播放" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="20,20"  FontFamily="Arial Black" FontSize="25" Click="btnPlay_Click"></Button>
12                 <Button x:Name="btnStop" Content="暂停" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="100,20"  FontFamily="Arial Black" FontSize="25" Click="btnStop_Click">
13         </Button>
14         <ProgressBar x:Name="pbTimer" HorizontalAlignment="Left" Height="35" Margin="180,245,0,20" VerticalAlignment="Bottom" Width="210" Minimum="1"  Loaded="ProgressBar_Loaded_1" />
15 
16     </Grid>
17 </UserControl>

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Net;
 5 using System.Windows;
 6 using System.Windows.Controls;
 7 using System.Windows.Documents;
 8 using System.Windows.Input;
 9 using System.Windows.Media;
10 using System.Windows.Media.Animation;
11 using System.Windows.Shapes;
12 using System.Windows.Threading;
13 
14 namespace SL1
15 {
16     public partial class SLMedia : UserControl
17     {
18         public SLMedia()
19         {
20             InitializeComponent();
21         }
22 
23         private void btnPlay_Click(object sender, RoutedEventArgs e)
24         {
25             mePalyer.Play();
26         }
27 
28         private void btnStop_Click(object sender, RoutedEventArgs e)
29         {
30            // mePalyer.Stop();
31             mePalyer.Pause();
32         }
33 
34         private void ProgressBar_Loaded_1(object sender, RoutedEventArgs e)
35         {
36          
37         }
38 
39         void tick_Tick(object sender, EventArgs e)
40         {
41            // pbTimer.Value += 3;
42             pbTimer.Value= mePalyer.Position.TotalMilliseconds;
43         }
44 
45         private void mePalyer_MediaOpened(object sender, RoutedEventArgs e)
46         {
47             pbTimer.Maximum = mePalyer.NaturalDuration.TimeSpan.TotalMilliseconds;       
48             DispatcherTimer tick = new DispatcherTimer();
49             tick.Tick += tick_Tick;
50             tick.Interval = TimeSpan.FromMilliseconds(500);
51             tick.Start();
52         }
53 
54       
55     }
56 }