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C#播放器有关问题 新手有关问题

2013-08-04 
C#播放器问题新手问题string str OpenFileDialog ofd new OpenFileDialog()ofd.Filter 播放列

C#播放器问题 新手问题
string str = "";
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = "播放列表文件|*.mp4";
            ofd.Title = "打开视频播放列表";
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                str = ofd.FileName;
                
            }
            if (播放函数)
            {

                return;

            }
            else if (停止函数)
            {

            }
            else
            {
                return;
            }
        }
请问一下我这个循环 哪个大神可以帮我改一下,如果代码不全的话跟我说一声我加代码。 C# 视频
[解决办法]
有循环么?...
[解决办法]
我有个播放器代码 供你参考 你那个写的什么 我就没看懂

 public partial class Form1 : Form
    {
        public Form1()
        {


            InitializeComponent();
        }
        string[] fileList = new string[10000]; // 定义播放列表数的最大值
        int numOfMusic; //选中的媒体文件的索引号
        int selectOne;//选中的音乐文件
        bool playOne = false; // 控制是否循环播放 
        public void AddFile(string path)
        {
            if (numOfMusic < 10000)
            {
                numOfMusic += 1;
                fileList[numOfMusic] = path;
            }
            else
            {
                MessageBox.Show("不能添加文件!", "播放列表已满");
            }
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            lstFileList.Items.CopyTo(fileList, 0);    //将列表框(lstFileList)中的列表项全部复制到数组(fileList)中
            numOfMusic = 0; // 选中第一个媒体文件
            CloseBtn();
        }
        //添加歌曲
        public void AddFiles(string path, ListBox lstFiles)
        {

            DirectoryInfo dir = new DirectoryInfo(path);
            foreach (FileInfo f in dir.GetFiles("*.mp3"))
            {
                AddFile(f.FullName);


                int i;
                string strFile = Convert.ToString(numOfMusic);
                for (i = 1; i <= 5 - strFile.Length; i++)
                {
                    strFile += "";
                }
                strFile = f.Name;
                lstFileList.Items.Add(strFile);
            }
            foreach (DirectoryInfo d in dir.GetDirectories())
            {
                AddFiles(d.FullName, lstFileList);
            }
        }


        //删除歌曲
        public void DelFile(int selectNum)
        {
            int i;
            for (i = selectNum; i <= numOfMusic - 1; i++)
            {
                fileList[i] = fileList[i + 1];

            }
            numOfMusic -= 1;
        }

        public void CloseBtn()
        {
            btnPlay.Enabled = false;
            btnBack.Enabled = false;
            btnForward.Enabled = false;


            btnStop.Enabled = false;
            btnReplay.Enabled = false;
            btnDelete.Enabled = false;

        }



        public void Play(int selectNum)
        {
            mediaPlayer.URL = fileList[selectNum]; //播放选中的媒体文件
            this.Text = "正在播放-- " + lstFileList.SelectedItem.ToString();
        }
        public void OpenBtn()
        {
            btnPlay.Enabled = true;
            btnBack.Enabled = true;
            btnForward.Enabled = true;
        }
        private void button8_Click(object sender, EventArgs e)
        {
            mediaPlayer.URL = "";
            this.Text = "媒体播放器";
            tmrMedia.Enabled = false;
            btnReplay.Enabled = false;
            lstFileList.SelectedIndex = selectOne - 1;
        }

        private void lstFileList_Click(object sender, EventArgs e)
        {
            int i;
            odlgMedia.FileName = "";
            // 设置默认文件名
            odlgMedia.InitialDirectory = "C:\";
            // 设置默认路径
            odlgMedia.Filter = "mp3文件


[解决办法]
*.mp3
[解决办法]
所有文件
[解决办法]
*.*";
            //设置文件类型
            if (odlgMedia.ShowDialog() == DialogResult.OK)
            {
                string path = odlgMedia.FileName;
                FileInfo f = new FileInfo(path);
                AddFile(f.FullName);
                string strFile = Convert.ToString(numOfMusic);
                for (i = 1; i <= 5 - strFile.Length; i++)
                {
                    strFile += "";

                }
                strFile = f.Name;
                lstFileList.Items.Add(strFile);
                if (lstFileList.Items.Count > 0)
                {
                    OpenBtn();
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            fbdlaMedia.SelectedPath = "c:\";

            fbdlaMedia.ShowNewFolderButton = true;



            fbdlaMedia.Description = "请选择媒体文件目录:";

            fbdlaMedia.ShowNewFolderButton = false;

            if (fbdlaMedia.ShowDialog() == DialogResult.OK)
            {

                AddFiles(fbdlaMedia.SelectedPath, lstFileList);

                if (lstFileList.Items.Count > 0)
                {

                    OpenBtn();
                }
            }
        }

        private void btnDelete_Click(object sender, EventArgs e)
        {
            int i = lstFileList.SelectedIndex;
            if (lstFileList.SelectedIndex >= 0)
            {
                if ((selectOne == lstFileList.SelectedIndex + 1) && (mediaPlayer.URL != ""))
                {
                    MessageBox.Show("不能删除正在播放的文件", "错误");
                }
                else
                {
                    DelFile(i + 1);
                    lstFileList.Items.RemoveAt(i);
                    if (i < lstFileList.Items.Count)


                    {
                        lstFileList.SelectedIndex = i;
                    }
                    else if (lstFileList.Items.Count == 0)
                    {
                        CloseBtn();
                    }
                    else
                    {
                        lstFileList.SelectedIndex = 0;
                    }
                }
            }
        }
        private void btnPlay_Click(object sender, EventArgs e)
        {
            if (lstFileList.SelectedIndex < 0)
            {
                selectOne = 1;
                lstFileList.SelectedIndex = 0;

            }
            else
            {
                selectOne = lstFileList.SelectedIndex + 1;
            }
            Play(selectOne);


            tmrMedia.Enabled = true;
            btnStop.Enabled = true;
            btnReplay.Enabled = true;
        }
        private void lstFileList_SelectedIndexChanged(object sender, EventArgs e)
        {
            btnDelete.Enabled = true;
        }
        private void btnBack_Click(object sender, EventArgs e)
        {
            if (lstFileList.SelectedIndex > 0)
            {
                lstFileList.SelectedIndex -= 1;

            }
            else if (lstFileList.SelectedIndex == 0)
            {

                lstFileList.SelectedIndex = lstFileList.Items.Count - 1;
            }
            else
            {
                lstFileList.SelectedIndex = numOfMusic - 1;
            }
            selectOne = lstFileList.SelectedIndex + 1;
            Play(selectOne);
            btnStop.Enabled = true;
            btnReplay.Enabled = true;

        }
        private void button6_Click(object sender, EventArgs e)
        {
            if (lstFileList.SelectedIndex < lstFileList.Items.Count - 1)


            {
                lstFileList.SelectedIndex = lstFileList.SelectedIndex + 1;
            }
            else
            {
                if (lstFileList.SelectedIndex > 0)
                {
                    lstFileList.SelectedIndex = 0;
                }
            }
            selectOne = lstFileList.SelectedIndex + 1;
            Play(selectOne);
            btnStop.Enabled = true;
            btnReplay.Enabled = true;
        }
        private void btnReplay_Click(object sender, EventArgs e)
        {
            if (playOne == true)
            {
                playOne = false;

                btnReplay.FlatStyle = FlatStyle.Standard;
                // 设置按钮外观为三维

                btnReplay.Text = "单曲循环";
            }
            else
            {
                playOne = true;
                btnReplay.FlatStyle = FlatStyle.Popup;


                // 设置按钮外观为平面显示

                btnReplay.Text = "取消循环";

            }
            lstFileList.SelectedIndex = selectOne - 1;

        }
        private void lstFileList_DoubleClick(object sender, EventArgs e)
        {
            //双击播放列表中的媒体文件时,则播放该文件
            btnPlay_Click(sender, e);
            playOne = false;
            btnReplay.Text = "单曲循环";
        }
    }

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