AxWMPLib.AxWindowsMediaPlayer歌曲結束後自動播放

Question

我嘗試製作簡單的音頻播放器，然後我嘗試使用 。 歌曲結束後，播放器停止播放。

我想自動設置它並在播放列表中選擇隨機化。 我使用的網址和一個列表框的播放列表..

這是自動播放的部分代碼片段：

private void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e) 
     { 
      if (e.newState == 8) 
      { 
       Random rnd = new Random(); 
       int nowPlayIndex = rnd.Next(listURLPlayers.Count); 
       axWindowsMediaPlayer1.URL = listURLPlayers[nowPlayIndex]; 
       axWindowsMediaPlayer1.Ctlenabled = true; 
       axWindowsMediaPlayer1.Ctlcontrols.play(); 
       listAudio.SelectedIndex = nowPlayIndex; 
      } 
     } 

但我嘗試它，然後在URL改變，但不自動播放。

我的代碼有什麼問題？

https://github.com/mudzakkir/MP3Player.git 

請幫忙。

Answer 1

好它現在正.. 我應該使用定時器.. 我的代碼是現在這個樣子：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.IO; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 

namespace Mp3Player 
{ 
    public partial class MediaPlayer : Form 
    { 
     string HomeDir; 
     string[] sPlaylists, sURLs; 
     List<string> listURLPlayers = new List<string>(); 
     public MediaPlayer() 
     { 
      InitializeComponent(); 
      HomeDir = Directory.GetCurrentDirectory(); 
      string[] playlist = File.ReadAllLines("playlist.txt"); 
      foreach (string fileText in playlist) 
      { 
       listAudio.Items.Add(fileText); 
      } 
      string[] playlistUrl = File.ReadAllLines("playlistURL.txt"); 
      foreach (string fileText in playlistUrl) 
      { 
       listURLPlayers.Add(fileText); 
      } 
     } 

     private void btnOpen_Click(object sender, EventArgs e) 
     { 
      OpenFileDialog open = new OpenFileDialog(); 
      if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK) 
      { 
       sPlaylists = openFileDialog1.SafeFileNames; 
       sURLs = openFileDialog1.FileNames; 
       for (int i = 0; i < sPlaylists.Length; i++) 
       { 
        listAudio.Items.Add(sPlaylists[i]); 
       } 
       for (int i = 0; i < sURLs.Length; i++) 
       { 
        listURLPlayers.Add(sURLs[i]); 
       } 
       System.IO.StreamWriter SaveFile = new System.IO.StreamWriter("playlist.txt"); 
       foreach (var item in listAudio.Items) 
       { 
        SaveFile.WriteLine(item); 
       } 
       SaveFile.Close(); 
       SaveFile = new System.IO.StreamWriter("playlistURL.txt"); 
       foreach (var item in listURLPlayers) 
       { 
        SaveFile.WriteLine(item); 
       } 
       SaveFile.Close(); 
      } 
     } 

     private void listAudio_MouseDoubleClick(object sender, MouseEventArgs e) 
     { 
      axWindowsMediaPlayer1.URL = listURLPlayers[listAudio.SelectedIndex]; 
     } 

     private void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e) 
     { 
      if (e.newState == 8) 
      { 
       timer1.Enabled = true; 
      } 
     } 

     private void listAudio_SelectedIndexChanged(object sender, EventArgs e) 
     { 
      axWindowsMediaPlayer1.URL = listURLPlayers[listAudio.SelectedIndex]; 
     } 

     private void timer1_Tick(object sender, EventArgs e) 
     { 
      timer1.Enabled = false; 
      Random rnd = new Random(); 
      int nowPlayIndex = rnd.Next(listURLPlayers.Count); 
      axWindowsMediaPlayer1.URL = listURLPlayers[nowPlayIndex]; 
      listAudio.SelectedIndex = nowPlayIndex; 
     } 
    } 
} 

謝謝