创建包含方法组的列表并执行此列表

Question

为了更好地解释这里是一个 GUI 屏幕截图：

（不能添加小图只链接） Screen GIU <<

这是我所有的 cmets 代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Media; // to play sounds


namespace Music_PLayer
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            //List View
            listView1.View = View.Details;
            listView1.FullRowSelect = true;

            // Columns CONSTRUCT
            listView1.Columns.Add("ID", 70);
            listView1.Columns.Add("Music name", 150);

            //combobox  items
            comboBox1.Items.Add("Music 1");
            comboBox1.Items.Add("Music 2");
            comboBox1.Items.Add("Music 3");
            comboBox1.Items.Add("Music 4");
            comboBox1.Items.Add("Music 5");
        }

        // ADD TO List VIEW
        private void add(int ID, string name_music)
        {
            string[] row = { Convert.ToString(ID), name_music };

            ListViewItem item = new ListViewItem(row);

            listView1.Items.Add(item);
        }

        //button to delete selected items in list view
        private void button_delete_selected_music_Click(object sender, EventArgs e)
        {
            try
            {
                listView1.SelectedItems[0].Remove();
            }
            catch { }

        }
**//EDITED :**
        // buttton to add music to list view
        int i = 0;
        private void button_add_music_Click(object sender, EventArgs e)
        {

        if (comboBox1.SelectedIndex==0)
        {
            dictOfDelegate.Add("Music 1", playmusic1);
            add(i, comboBox1.Text);
        }
        if (comboBox1.SelectedIndex == 1)
        {
            dictOfDelegate.Add("Music 2", playmusic2);
            add(i, comboBox1.Text);
        }
        if (comboBox1.SelectedIndex == 2)
        {
            dictOfDelegate.Add("Music 3", playmusic3);
            add(i, comboBox1.Text);
        }
        if (comboBox1.SelectedIndex == 3)
        {
            dictOfDelegate.Add("Music 4", playmusic4);
            add(i, comboBox1.Text);
        }
        if (comboBox1.SelectedIndex == 4)
        {
            dictOfDelegate.Add("Music 5", playmusic5);
            add(i, comboBox1.Text);
        }

        }

        // button to start music
        private void button_start_music(object sender, EventArgs e)
        {

        }


        // Voids with music :
        public void playmusic1()
        {

            SoundPlayer audio = new SoundPlayer(Music_PLayer.Properties.Resources.playsound1);
            audio.Play();
        }
        public void playmusic2()
        {
            SoundPlayer audio = new SoundPlayer(Music_PLayer.Properties.Resources.playsound2);
            audio.Play();
        }
        public void playmusic3()
        {
            SoundPlayer audio = new SoundPlayer(Music_PLayer.Properties.Resources.playsound3);
            audio.Play();

        }
            public void playmusic4()
            {
                SoundPlayer audio = new SoundPlayer(Music_PLayer.Properties.Resources.playsound4);
                audio.Play();
            }
            public void playmusic5()
            {
                SoundPlayer audio = new SoundPlayer(Music_PLayer.Properties.Resources.playsound5);
                audio.Play();
            }
                public delegate void PlayMusic();
// EDITED 
        Dictionary<string, PlayMusic> dictOfDelegate = new Dictionary<string, PlayMusic>();

        void CreateList()
        {
        dictOfDelegate.Add("Music 1", playmusic1);
        dictOfDelegate.Add("Music 2", playmusic2);
        dictOfDelegate.Add("Music 3", playmusic3);
        dictOfDelegate.Add("Music 4", playmusic4);
        dictOfDelegate.Add("Music 5", playmusic5);
        }

    void InvokeMethod(string item)
    {
        PlayMusic method = dictOfDelegate.First(x => x.Key == item).Value;

        method.Invoke();
    }
    }
}

我想从组合框中选择一首歌曲，将其添加到播放列表中，单击“开始音乐”按钮后将播放列表从上到下播放..

当您单击“将音乐添加到列表”按钮时，我想将组合框中的选定歌曲添加到列表视图。当然，通过“删除选定的音乐”按钮，我可以从列表中删除一首歌曲。

所以我必须这样做，例如，当我从组合框 (Music1) 中选择时单击按钮（将音乐添加到列表），它将显示 ID 1 音乐名称 Music 1，当单击开始音乐按钮时，它将显示执行 void playmusic1();

我知道我只是将文本从组合框添加到列表视图，但我不知道如何在那里获取方法...

我真的不知道如何编写“开始音乐”按钮（我在考虑队列）来用我的 listView1 一个一个地播放音乐。

我只需要收集或其他东西或队列。

主要问题是如何创建一个包含方法组的列表，然后执行所有此列表（如您所见，我希望有可能删除此列表中的选定元素）

如果我不解释清楚就问..

编辑...

我认为最好的解决方案是这段代码：

 public  List<Action> musiclist = new   List<Action>();

  // buttton to add music to list view
        int i = 0;
        private void button_add_music_Click(object sender, EventArgs e)
        {

            if (comboBox1.SelectedIndex==0)
            {

                musiclist.Add(playmusic1);
                add(i, comboBox1.Text);
            }
            if (comboBox1.SelectedIndex == 1)
            {
                musiclist.Add(playmusic2);
                add(i, comboBox1.Text);

            }
            if (comboBox1.SelectedIndex == 2)
            {
                musiclist.Add(playmusic3);
                add(i, comboBox1.Text);
            }
            if (comboBox1.SelectedIndex == 3)
            {
                musiclist.Add(playmusic4);
                add(i, comboBox1.Text);
            }
            if (comboBox1.SelectedIndex == 4)
            {
                musiclist.Add(playmusic5);
                add(i, comboBox1.Text);
            }
        }
   private void button_to_Start_music_Click(object sender, EventArgs e)
    {
        foreach (Action func in musiclist)
        {
            func();
        }

    }

Answer 1

在我看来这不是最好的方法，无论如何你可以在字典中使用委托。

public delegate void PlayMusic();

Dictionary<string, PlayMusic> dictOfDelegate = new Dictionary<string, PlayMusic>();

void CreateList()
{        
    dictOfDelegate.Add("Music 1", playmusic1);
    dictOfDelegate.Add("Music 2", playmusic2);
    ...
}

void InvokeMethod(string item)
{
    PlayMusic method = dictOfDelegate.First(x => x.Key == item).Value;

    method.Invoke();
}

Answer 2

您可以制作一首班级歌曲和一个列表，您可以随时从中添加或删除内容。

    int queueSize = 0;
    int queueCurrent = 0;
    List<Song> toPlay = new List<Song>();
    class Manager
    {
        public void addSong(Song add)
        {
            toPlay.add(add);
            queueSize++;
        }
        public void removeSong(int remove)
        {
            toPlay.RemoveAt(remove)
            queueSize--;
        }
        public void playSong(int index)
        {
            Song play = toPlay[index]
            WMPLib.WindowsMediaPlayer songPlayer = new WMPLib.WindowsMediaPlayer();
            songPlayer.URL = play.FilePath;
            wplayer.Controls.Play();
        }
    }
    class Song
    {
        string FilePath;
        string Name;
        int Index;
        public Song(string name, int index)
        {
            Name = name;
            Index = index;
        }
    }

当然，这需要更多的代码，但这应该可以解决您的问题。如果您有任何问题或看到任何修改，请在 cmets 中告诉我。

编辑：OP 正在为每首歌曲寻找硬编码方式，所以就在这里。另外，我不建议其他寻求相同答案的人这样做。

    class Songs
    {
       public void songOne()
       {
           string name = "songOne";
           string path = "C:/songs/songone/
           playSong(path);
       }
       public void songOne()
       {
           string name = "songTwo";
           string path = "C:/songs/songtwo/
           playSong(path);
       }
       // And all the other songs
       public void playSong(string path)
       {
           WMPLib.WindowsMediaPlayer songPlayer = new WMPLib.WindowsMediaPlayer();
            songPlayer.URL = path;
            wplayer.Controls.Play();
       }
    }