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软件概览：

区域组成：一个MediaElement控件+一个ListView控件+一个TextBlock控件+一个Slider控件+若干button控件

功能介绍：

1、视频区

       用于播放列表中的视频内容

2、控制区

      包含播放(暂停)、停止、快进、快退、音量；返回按钮为关闭此窗体

3、播放列表

      显示所要播放的视频列表，列表中的内容位于一个盘符目录中，向此目录添加视频时，启动此程序，列表将显示此目录下的所有视频，程序已设为播放列表循环播放(非单个循环)。

代码如下：

Xaml：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Shapes;using System.IO;namespace 泗阳行政服务中心{    /// 
    /// VentureNewsWindow.xaml 的交互逻辑    /// 
    public partial class VentureNewsWindow : Window    {        string root = "", pathMedia = "";        public VentureNewsWindow()        {            InitializeComponent();            InitPath();            AddItemToListView();        }        //获取视频目录        private void InitPath()        {            ApplicationPath ap = new ApplicationPath();            root = ap.GetRtfPath("root");            pathMedia = root + ap.GetRtfPath("pathMedia");        }        //将视频目录下的视频名称添加到ListView中        private void AddItemToListView()        {            string[] files = Directory.GetFiles(pathMedia);            foreach (string file in files)            {                this.listView1.Items.Add(file.Substring(file.LastIndexOf('\\') + 1));            }        }        //窗体加载时调用视频，进行播放        private void Window_Loaded(object sender, RoutedEventArgs e)        {            MediaElementControl();        }        //存储播放列表中视频的名称        List
   
     fileNames = new List
    
     ();        private void MediaElementControl()        {            this.mediaElement1.LoadedBehavior = MediaState.Manual;                        string[] files = Directory.GetFiles(pathMedia);                        foreach(string file in files)            {                fileNames.Add(file.Substring(file.LastIndexOf('\\') + 1));            }            this.mediaElement1.Source = new Uri(files[0]);            this.mediaElement1.Play();        }        //视频播放结束事件        private void mediaElement1_MediaEnded(object sender, RoutedEventArgs e)        {            //获取当前播放视频的名称（格式为：xxx.wmv）            string path = this.mediaElement1.Source.LocalPath;            string currentfileName = path.Substring(path.LastIndexOf('\\') + 1);            //对比名称列表，如果相同，则播放下一个，如果播放的是最后一个，则从第一个重新开始播放            for (int i = 0; i < fileNames.Count;i++ )            {                if (currentfileName == fileNames[i])                {                    if (i == fileNames.Count - 1)                    {                        this.mediaElement1.Source = new Uri(pathMedia + "//" + fileNames[0]);                        this.mediaElement1.Play();                    }                    else                    {                        this.mediaElement1.Source = new Uri(pathMedia + "//" + fileNames[i + 1]);                        this.mediaElement1.Play();                    }                    break;                }            }        }        //播放列表选择时播放对应视频        private void listView1_SelectionChanged(object sender, SelectionChangedEventArgs e)        {            string fileName = this.listView1.SelectedValue.ToString();            this.mediaElement1.Source = new Uri(pathMedia + "//" + fileName);            this.mediaElement1.Play();        }        //返回按钮        private void button1_Click(object sender, RoutedEventArgs e)        {            this.Close();        }        private void button3_Click(object sender, RoutedEventArgs e)        {            this.mediaElement1.Position = this.mediaElement1.Position + TimeSpan.FromSeconds(20);        }                //播放、暂停按钮        private void button3_Click_1(object sender, RoutedEventArgs e)        {            if (button3.Content.ToString() == "播 放")            {                mediaElement1.Play();                button3.Content = "暂 停";                mediaElement1.ToolTip = "Click to Pause";            }            else            {                mediaElement1.Pause();                button3.Content = "播 放";                mediaElement1.ToolTip = "Click to Play";            }        }        //停止播放视频        private void button4_Click(object sender, RoutedEventArgs e)        {            this.mediaElement1.Stop();        }        //快进        private void button5_Click(object sender, RoutedEventArgs e)        {            mediaElement1.Position = mediaElement1.Position + TimeSpan.FromSeconds(10);        }        //快退        private void button6_Click(object sender, RoutedEventArgs e)        {            mediaElement1.Position = mediaElement1.Position - TimeSpan.FromSeconds(10);        }    }}
    
   

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Xml;namespace 泗阳行政服务中心{    class ApplicationPath    {        private readonly static string ImagePath = Environment.CurrentDirectory + "\\image\\";        private readonly static string RtfPath = Environment.CurrentDirectory + "\\rtf\\";        XmlDocument xDoc = new XmlDocument();        public ApplicationPath()        {            xDoc.Load(getAppConfigPath());        }        public static string getImagePath()        {            return ImagePath;        }        public static string getRtfPath()        {            return RtfPath;        }        public string getAppConfigPath()        {            return Environment.CurrentDirectory + "\\App.config";        }        //获取App.config值        public string GetRtfPath(string appKey)        {            try            {                XmlNode xNode;                XmlElement xElem;                xNode = xDoc.SelectSingleNode("//appSettings");                xElem = (XmlElement)xNode.SelectSingleNode("//add[@key='" + appKey + "']");                if (xElem != null)                {                    return xElem.GetAttribute("value");                }                else                    return "";            }            catch (Exception)            {                return "";            }        }    }}

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