Tutorial on playing principles of Peking University qingbird KTV: Yuan Yuming and Yuan Yuming

Tutorial on playing principles of Peking University qingbird KTV: Yuan Yuming and Yuan Yuming

Step 1:

Create a Song class

// Song name

Public string SongName {get; set ;}

// Song Lu Jin

Public string SongPath {get; set ;}

Step 2:

Create a ListSong class

// Store the songs to be played

Public static List <Song> list = new List <Song> ();

Public static int SongIndex = 0; // index of the currently played song in the Set

/// <Summary>

/// Add a song to the List set

/// </Summary>

Public static void AddSong (Song song)

{

List. Add (song );

}

/// <Summary>

/// Obtain the played song

/// </Summary>

Public static Song GetPalySong ()

{

If (list. Count> 0) à judge whether the set is an element

{

If (list. Contains (list [SongIndex]) // check whether the set Contains the list [SongIndex] song.

{

Return list [SongIndex];

}

}

Return null;

}

/// <Summary>

/// Obtain the name of the next playing song

/// </Summary>

/// <Returns> </returns>

Public static string GetNextSongName ()

{

String name = string. Empty; // defines a name field and accepts the name of the next song to be played.

If (list. Count> 1) // The element in the set must be greater than 1 to get the name of the next song

{

Name = list [SongIndex + 1]. SongName;

}

Return name;

}

/// <Summary>

/// Play the next one

/// </Summary>

Public static void MoveOn ()

{

// Judge whether the current song is not empty and the playing status is not replay. Then, execute SongIndex ++ to play the next song.

If (list [SongIndex]! = Null & list [SongIndex]. Sate = Sateze. again)

{

List [SongIndex]. ChagenSate ();

}

Else

{

SongIndex ++;

}

}

Step 3:

When you click a song in the irlview control,

// Create a Song Class Object

Song song = new Song ();

// Obtain the song name

Song. SongName = this. dataGridView1.SelectedRows [0]. Cells [3]. Value. ToString ();

// Obtain the song path strength

Song. SongPath = this. dataGridView1.SelectedRows [0]. Cells [2]. Value. ToString ();

/Call the AddSong method in ListSong to add data to the set.

ListSong. AddSong (song );

Step 4:

Define a Song class object in the main form FrmMain to accept the Song to be played

Private Song song; // The currently played Song

// Define a method to play the song to be played

/// <Summary>

/// Play a song

/// </Summary>

Public void LoadPalyedSong ()

{

This. song = ListSong. GetPalySong (); // call the GetPalySong method in the ListSong class,

If (song! = Null)

{

This. song. ChagenSate (); // Changes the song status

AxWindowsMediaPlayer1.URL = @ "E: \ KTV \ song \" + this. song. SongPath; // The playback power of the player

This. textBox1.Text = this. song. SongName; // name of the currently played song

This. textBox2.Text = ListSong. GetNextSongName (); // call the GetNextSongName method in the ListSong class to obtain the name of the next song.

}

}

There is a Timer space in the main form FrmMain, it has a Tick event, and there are several codes in its event

 

If (song = null) // forcibly leave song empty to play the song

{

LoadPalyedSong ();

}

// When playing the next song to determine whether the player space is in the stopped state

If (axWindowsMediaPlayer1.playState = WMPLib. WMPPlayState. wmppsStopped)

{

Song = null; // set song to null, and song points to the next song

ListSong. MoveOn (); // call the MoveOn method in the ListSong class to play the next song.

}

Step 5:

Add the song selected from the irlview space to the ListView control.

This. listView1.Items. Clear (); // first Clear the ListView control.

Foreach (Song item in ListSong. list) // traverses the entire set

{

ListViewItem lvitem = new ListViewItem (item. SongName );

Lvitem. SubItems. Add (item. SongPath );

String sate = item. Sate = Sateze. unPaly? "Not played": "played ";

Lvitem. SubItems. Add (sate );

This. listView1.Items. Add (lvitem); // bind it to the ListView control.

}