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KTV点歌系统————北大青鸟 指导老师：原玉明
1 public enum SongPlayState 2 { 3 //未播放，播放，重播，切歌 4 unplayed, played, again, cut 5 } 6 public class Song 7 { 8 public string SongName { get; set; }//歌曲名称 9 10 public string SongURL { get; set; }//歌曲路径 11 12 13 public SongPlayState playState = SongPlayState.unplayed;//默认未播放 14 internal SongPlayState PlayState { get; set; } 15 16 //状态为已播 17 public void SetSongPlayed() 18 { 19 this.PlayState = SongPlayState.played; 20 } 21 //重唱 22 public void SetPlayAgain() 23 { 24 this.playState = SongPlayState.again; 25 } 26 //切歌 27 public void SetSongCut() 28 { 29 this.playState = SongPlayState.cut; 30 }
PlayList类中实现切歌 重唱 下一首 等.....
1 public class PlayList 2 { 3 //定义一个长度为、50的歌曲数组，默认存储50首歌曲 4 public static Song[] SongList = new Song[50]; 5 public static int SongIndex = 0;//当前播放的歌曲在数组中的索引 6 //点播一首歌曲，其实是将歌曲对象添加到歌曲数组中 7 public static bool AddSong(Song song) 8 { 9 bool success = false;//记录添加歌曲是否成功 10 for (int i = 0; i < SongList.Length; i++) 11 { 12 //找到数组中第一个为null的位置 13 if (SongList[i] == null) 14 { 15 SongList[i] = song; 16 success = true; 17 break; 18 } 19 } 20 return success; 21 } 22 //获取当前播放的歌曲：：既然是获取当前播放的歌曲，返回值肯定是Song类型 23 public static Song GetPlaySong() 24 { 25 if (SongList[SongIndex] != null) 26 { 27 return SongList[SongIndex]; 28 } 29 else 30 { 31 return null; 32 } 33 } 34 /// <summary> 35 /// 播放下一首 36 /// </summary> 37 public static void MoveOn() 38 { 39 if (SongList[SongIndex] != null && SongList[SongIndex].PlayState == SongPlayState.again) 40 { 41 SongList[SongIndex].SetSongPlayed(); 42 } 43 else 44 { 45 SongIndex++; 46 } 47 } 48 /// <summary> 49 /// 当前播放的歌曲名称 50 /// </summary> 51 /// <returns>歌曲名称</returns> 52 public static string PlayingSongName() 53 { 54 string songName = ""; // 歌曲名称 55 if (SongList[SongIndex] != null) 56 { 57 songName = SongList[SongIndex].SongName; 58 } 59 60 return songName; 61 } 62 /// <summary> 63 /// 下一首要播放的歌曲名称 64 /// </summary> 65 /// <returns>歌曲名称</returns> 66 public static string NextSongName() 67 { 68 string songName = ""; // 歌曲名称 69 if (SongList[SongIndex + 1] != null) 70 { 71 songName = SongList[SongIndex + 1].SongName; 72 } 73 74 return songName; 75 } 76 //重放当前歌曲 77 public static void PlayAgain() 78 { 79 if (SongList[SongIndex] != null) 80 { 81 SongList[SongIndex].SetPlayAgain(); 82 } 83 } 84 //切歌 85 public static void CutSong(int index) 86 { 87 int i;//循环变量，代表切歌的位置 88 if (index == -1)//循环变量，代表切割的位置 89 { 90 i = SongIndex; 91 } 92 else 93 { 94 i = index;//从切歌的位置开始，将歌曲逐个向前移一个位置 95 } 96 SongList[i].SetSongCut(); 97 while (SongList[i] != null) 98 { 99 SongList[i] = SongList[i + 1]; 100 i++; 101 //如果达到数组最后一个元素，就将最后一个元素指向空 102 if (i == SongList.Length) 103 { 104 SongList[i] = null; 105 } 106 } 107 } 108 }
实现歌手点歌
1 public FrmMain frmMain; 2 string connectionStr = "server=.;database=MyKTV;uid=sa"; 3 DBHelp db = new DBHelp(); 4 private SqlConnection con; 5 //首先要查出数据库中的图片路径和歌曲路径 6 private void FrmCountry_Load(object sender, EventArgs e) 7 { 8 9 con = new SqlConnection(connectionStr); 10 con.Open(); 11 string sql = "select resource_path from resource_path where resource_id=1"; 12 13 string sqlsongpath = "select resource_path from resource_path where resource_id=2"; 14 SqlCommand cmd = new SqlCommand(sql,con); 15 16 SqlCommand cmd2 = new SqlCommand(sqlsongpath, con); 17 KtvUnit.ImagePath = cmd.ExecuteScalar().ToString(); 18 KtvUnit.SongPath = cmd2.ExecuteScalar().ToString(); 19 con.Close(); 20 } 21 //点击歌手男女或组合时 22 private void LvOne_Click(object sender, EventArgs e) 23 { 24 25 LoadSingerArea(); 26 } 27 public string singer_type { get; set; } 28 private void LoadSingerArea() 29 { 30 if (this.LvOne.SelectedItems[0] != null) 31 { 32 LvOne.Visible = false; 33 LvTwo.Location = LvOne.Location; 34 LvTwo.Dock = DockStyle.Fill; 35 LvTwo.Visible = true; 36 this.singer_type=Convert.ToString(LvOne.SelectedItems[0].Text); 37 } 38 39 con = new SqlConnection(connectionStr); 40 string sql = "select singertype_id,singertype_name from singer_type"; 41 SqlCommand cmd = new SqlCommand(sql, con); 42 SqlDataReader dr; 43 try 44 { 45 con.Open(); 46 LvTwo.Items.Clear(); 47 dr = cmd.ExecuteReader(); 48 if (dr.HasRows) 49 { 50 int index = 0; 51 while (dr.Read()) 52 { 53 ListViewItem lvItem = new ListViewItem(); 54 int typeid = Convert.ToInt32(dr["singertype_id"]); 55 string typename = Convert.ToString(dr["singertype_name"]); 56 lvItem.Text = typename; 57 lvItem.Tag = typeid; 58 lvItem.ImageIndex = index; 59 LvTwo.Items.Add(lvItem); 60 index++; 61 } 62 } 63 dr.Close(); 64 } 65 catch (Exception ex) 66 { 67 68 MessageBox.Show("系统出现异常" + ex.Message); 69 } 70 finally 71 { 72 con.Close(); 73 } 74 } 75 public string singertype_id { get; set; } 76 /// <summary> 77 /// 点击地区类型时 78 /// </summary> 79 /// <param name="sender"></param> 80 /// <param name="e"></param> 81 private void LvTwo_Click(object sender, EventArgs e) 82 { 83 if (this.LvTwo.SelectedItems[0] != null) 84 { 85 LvTwo.Visible = false; 86 Lvthree.Location = LvTwo.Location; 87 Lvthree.Dock = DockStyle.Fill; 88 Lvthree.Visible = true; 89 this.singertype_id = Convert.ToString(LvTwo.SelectedItems[0].Tag); 90 } 91 string result = singer_type; 92 if (result != "组合") 93 { 94 result = singer_type == "女歌手" ? "女" : "男"; 95 } 96 con = new SqlConnection(connectionStr); 97 string sql =string.Format( "select singer_id,singer_name,singer_photo_url from singer_info where singertype_id={0} and singer_Sex=‘{1}‘",singertype_id,result); 98 SqlCommand cmd = new SqlCommand(sql, con); 99 SqlDataReader dr; 100 try 101 { 102 con.Open(); 103 int index = 0; 104 Lvthree.Items.Clear(); 105 imageList3.Images.Clear(); 106 dr = cmd.ExecuteReader(); 107 if (dr.HasRows) 108 { 109 while (dr.Read()) 110 { 111 string photoURL =KtvUnit.ImagePath + Convert.ToString(dr["singer_photo_url"]); 112 //先给ImageList填充图片 113 imageList3.Images.Add(Image.FromFile(photoURL)); 114 ListViewItem lvItem = new ListViewItem(); 115 lvItem.Text = Convert.ToString(dr["singer_name"]); 116 lvItem.Tag = Convert.ToString(dr["singer_id"]); 117 lvItem.ImageIndex = index; 118 Lvthree.Items.Add(lvItem); 119 index++; 120 } 121 } 122 dr.Close(); 123 } 124 catch (Exception ex) 125 { 126 127 MessageBox.Show("系统出现异常" + ex.Message); 128 } 129 finally 130 { 131 con.Close(); 132 } 133 } 134 135 public void SongList() 136 { 137 //读取数据库，读出该歌手的所有歌曲 138 139 StringBuilder sb = new StringBuilder(); 140 //拼接SQL语句 141 sb.AppendFormat("select song_id,song_name,song_url,singer_name from song_info,singer_info where singer_name=‘{0}‘ and song_info.singer_id={1}", Lvthree.SelectedItems[0].Text, Convert.ToInt32(Lvthree.SelectedItems[0].Tag)); 142 FrmSongList songList = new FrmSongList(); 143 144 songList.Sql = sb.ToString(); 145 songList.Previous = KtvClient.PrevioisForm.Singer;//指定返回的窗体是按歌手点歌 146 songList.ShowDialog(); 147 this.Close(); 148 149 } 150 151 private void Lvthree_Click(object sender, EventArgs e) 152 { 153 SongList(); 154 } 155 156 private void tsSingerMain_Click(object sender, EventArgs e) 157 { 158 FrmMain main = new FrmMain(); 159 main.Show(); 160 this.Hide(); 161 } 162 163 private void tsSingerBack_Click(object sender, EventArgs e) 164 { 165 if (this.LvOne.Visible==true) 166 { 167 FrmMain man = new FrmMain(); 168 man.Show(); 169 this.Hide(); 170 } 171 else if (this.LvTwo.Visible==true) 172 { 173 this.LvTwo.Visible = false; 174 this.LvOne.Visible = true; 175 } 176 else if (this.Lvthree.Visible==true) 177 { 178 this.Lvthree.Visible = false; 179 this.LvTwo.Visible = true; 180 } 181 } 182 183 private void tsSingerCut_Click(object sender, EventArgs e) 184 { 185 PlayList.CutSong(-1); 186 } 187 188 private void tsSingerAgain_Click(object sender, EventArgs e) 189 { 190 PlayList.PlayAgain(); 191 } 192 193 private void tsSingerYidian_Click(object sender, EventArgs e) 194 { 195 FrmPlayList frm = new FrmPlayList(); 196 frm.Show(); 197 }
拼音点歌
1 public FrmMain frmMain; 2 [DllImportAttribute("user32.dll")] 3 private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags); 4 DBHelp db = new DBHelp(); 5 string connectionStr = "server=.;database=MyKTV;uid=sa"; 6 private void FrmPinYin_Load(object sender, EventArgs e) 7 { 8 AnimateWindow(this.Handle, 300, FrmMain.AW_SLIDE + FrmMain.AW_VER_POSITIVE); 9 SqlConnection con = new SqlConnection(connectionStr); 10 con.Open(); 11 db.connection(); 12 string sqlsongpath = "select resource_path from resource_path where resource_id=2"; 13 SqlCommand cmd = new SqlCommand(sqlsongpath, con); 14 KtvUnit.SongPath = cmd.ExecuteScalar().ToString(); 15 } 16 private void btnSearch_Click(object sender, EventArgs e) 17 { 18 string PinYin = this.txtPinYin.Text; 19 //判断是否是中文 还是拼音 20 if (!Regex.IsMatch(this.txtPinYin.Text, @"^[\u4e00-\u9fa5]+$")) 21 { 22 StringBuilder PY = new StringBuilder(PinYin); 23 24 for (int i = 0; i <= PY.Length; i++) 25 { 26 PY.Insert(i, "%"); 27 i++; 28 } 29 string sql = string.Format("SELECT song_name,singer_name FROM dbo.singer_info, dbo.song_info WHERE dbo.singer_info.singer_id=dbo.song_info.singer_id AND song_ab LIKE ‘{0}‘", PY); 30 this.dgvPinYinInfo.DataSource = db.dataTable(sql,"PY"); 31 } 32 else 33 { 34 StringBuilder ZW = new StringBuilder(PinYin); 35 for (int i = 0; i < ZW.Length; i++) 36 { 37 ZW.Insert(i,"%"); 38 i++; 39 } 40 string sql = string.Format("SELECT song_name,singer_name FROM dbo.singer_info, dbo.song_info WHERE dbo.singer_info.singer_id=dbo.song_info.singer_id AND song_name LIKE ‘{0}‘", ZW); 41 this.dgvPinYinInfo.DataSource = db.dataTable(sql, "PY"); 42 } 43 } 44 45 private void dgvPinYinInfo_DoubleClick(object sender, EventArgs e) 46 { 47 string songname = this.dgvPinYinInfo.SelectedRows[0].Cells["song_name"].Value.ToString(); 48 DBHelp db = new DBHelp(); 49 db.connection(); 50 string sql = string.Format("SELECT song_name,singer_name,song_url,song_photo_url FROM dbo.song_info,dbo.singer_info where dbo.singer_info.singer_id=dbo.song_info.singer_id and song_name=‘{0}‘",songname); 51 52 SqlDataReader reader = db.ExecuteReaders(sql.ToString()); 53 54 Song song; 55 if (reader.Read()) 56 { 57 song = new Song(); 58 song.SongName = reader["song_name"].ToString(); 59 song.SongURL = KtvUnit.SongPath+reader["song_url"].ToString(); 60 PlayList.AddSong(song); 61 } 62 reader.Close(); 63 } 64 65 private void pictureBox2_Click(object sender, EventArgs e) 66 { 67 textBox1.Text = textBox1.Text + "a"; 68 } 69 70 private void pictureBox1_Click(object sender, EventArgs e) 71 { 72 textBox1.Text = textBox1.Text + "b"; 73 } 74 75 private void pictureBox3_Click(object sender, EventArgs e) 76 { 77 textBox1.Text = textBox1.Text + "c"; 78 } 79 80 private void pictureBox4_Click(object sender, EventArgs e) 81 { 82 textBox1.Text = textBox1.Text + "d"; 83 } 84 85 private void pictureBox5_Click(object sender, EventArgs e) 86 { 87 textBox1.Text = textBox1.Text + "e"; 88 } 89 90 private void pictureBox6_Click(object sender, EventArgs e) 91 { 92 textBox1.Text = textBox1.Text + "f"; 93 } 94 95 private void pictureBox7_Click(object sender, EventArgs e) 96 { 97 textBox1.Text = textBox1.Text + "g"; 98 } 99 100 private void pictureBox8_Click(object sender, EventArgs e) 101 { 102 textBox1.Text = textBox1.Text + "h"; 103 } 104 105 private void pictureBox9_Click(object sender, EventArgs e) 106 { 107 textBox1.Text = textBox1.Text + "i"; 108 } 109 110 private void pictureBox10_Click(object sender, EventArgs e) 111 { 112 textBox1.Text = textBox1.Text + "j"; 113 } 114 115 private void pictureBox26_Click(object sender, EventArgs e) 116 { 117 textBox1.Text = textBox1.Text + "k"; 118 } 119 120 private void pictureBox11_Click(object sender, EventArgs e) 121 { 122 textBox1.Text = textBox1.Text + "l"; 123 } 124 125 private void pictureBox12_Click(object sender, EventArgs e) 126 { 127 textBox1.Text = textBox1.Text + "m"; 128 } 129 130 private void pictureBox13_Click(object sender, EventArgs e) 131 { 132 textBox1.Text = textBox1.Text + "n"; 133 } 134 135 private void pictureBox14_Click(object sender, EventArgs e) 136 { 137 textBox1.Text = textBox1.Text + "o"; 138 } 139 140 private void pictureBox15_Click(object sender, EventArgs e) 141 { 142 textBox1.Text = textBox1.Text + "p"; 143 } 144 145 private void pictureBox16_Click(object sender, EventArgs e) 146 { 147 textBox1.Text = textBox1.Text + "q"; 148 } 149 150 private void pictureBox17_Click(object sender, EventArgs e) 151 { 152 textBox1.Text = textBox1.Text + "r"; 153 } 154 155 private void pictureBox18_Click(object sender, EventArgs e) 156 { 157 textBox1.Text = textBox1.Text + "s"; 158 } 159 160 private void pictureBox19_Click(object sender, EventArgs e) 161 { 162 textBox1.Text = textBox1.Text + "t"; 163 } 164 165 private void pictureBox20_Click(object sender, EventArgs e) 166 { 167 textBox1.Text = textBox1.Text + "u"; 168 } 169 170 private void pictureBox21_Click(object sender, EventArgs e) 171 { 172 textBox1.Text = textBox1.Text + "v"; 173 } 174 175 private void pictureBox22_Click(object sender, EventArgs e) 176 { 177 textBox1.Text = textBox1.Text + "w"; 178 } 179 180 private void pictureBox23_Click(object sender, EventArgs e) 181 { 182 textBox1.Text = textBox1.Text + "x"; 183 } 184 185 private void pictureBox24_Click(object sender, EventArgs e) 186 { 187 textBox1.Text = textBox1.Text + "y"; 188 } 189 190 private void pictureBox25_Click(object sender, EventArgs e) 191 { 192 textBox1.Text = textBox1.Text + "z"; 193 } 194 195 private void FrmPinYin_FormClosing(object sender, FormClosingEventArgs e) 196 { 197 AnimateWindow(this.Handle, 300, FrmMain.AW_SLIDE + FrmMain.AW_VER_POSITIVE); 198 } 199 public void Binder() 200 { 201 string PinYin = this.textBox1.Text; 202 StringBuilder PY = new StringBuilder(PinYin); 203 204 for (int i = 0; i <= PY.Length; i++) 205 { 206 PY.Insert(i, "%"); 207 i++; 208 } 209 string sql = string.Format("SELECT song_name,singer_name FROM dbo.singer_info, dbo.song_info WHERE dbo.singer_info.singer_id=dbo.song_info.singer_id AND song_ab LIKE ‘{0}‘", PY); 210 DataSet ds = db.dataSet(sql, "PY"); 211 if (ds.Tables["PY"]!=null) 212 { 213 ds.Tables["PY"].Clear(); 214 } 215 this.dgvPinYinInfo.DataSource = db.dataTable(sql, "PY"); 216 } 217 private void pictureBox28_Click(object sender, EventArgs e) 218 { 219 string text = textBox1.Text; 220 int index = text.Length - 1; 221 if (index >= 0) 222 { 223 textBox1.Text = text.Remove(index); 224 } 225 } 226 227 private void textBox1_TextChanged(object sender, EventArgs e) 228 { 229 if (textBox1.Text!=string.Empty) 230 { 231 Binder(); 232 this.dgvPinYinInfo.AutoGenerateColumns = false; 233 } 234 else 235 { 236 this.dgvPinYinInfo.DataSource=null; 237 } 238 239 } 240 241 242 243 private void tsPYMain_Click(object sender, EventArgs e) 244 { 245 FrmMain main = new FrmMain(); 246 main.Show(); 247 this.Hide(); 248 } 249 250 private void txPYAgain_Click(object sender, EventArgs e) 251 { 252 FrmMain main = new FrmMain(); 253 main.Playsong(); 254 } 255 Song song = new Song(); 256 private void tsPYCut_Click(object sender, EventArgs e) 257 { 258 song.playState = SongPlayState.cut; 259 } 260 261 private void tsPYYidian_Click(object sender, EventArgs e) 262 { 263 FrmPlayList list = new FrmPlayList(); 264 list.Show(); 265 } 266 267 private void tsPYBack_Click(object sender, EventArgs e) 268 { 269 Application.Exit(); 270 }
类型点歌
1 public FrmMain frmMain; 2 string connectionStr = "server=.;database=MyKTV;uid=sa"; 3 DBHelp db = new DBHelp(); 4 private SqlConnection con; 5 private void FrmSongType_Load(object sender, EventArgs e) 6 { 7 con = new SqlConnection(connectionStr); 8 con.Open(); 9 string sql = "select resource_path from resource_path where resource_id=1"; 10 string sqlsongpath = "select resource_path from resource_path where resource_id=2"; 11 SqlCommand cmd2 = new SqlCommand(sqlsongpath,con); 12 KtvUnit.SongPath = cmd2.ExecuteScalar().ToString(); 13 SqlCommand cmd = new SqlCommand(sql, con); 14 KtvUnit.ImagePath = cmd.ExecuteScalar().ToString(); 15 con.Close(); 16 17 con = new SqlConnection(connectionStr); 18 string sql1 = string.Format("select songtype_id,songtype_name,songtype_URL from song_type"); 19 SqlCommand cmd1 = new SqlCommand(sql1, con); 20 SqlDataReader dr; 21 try 22 { 23 con.Open(); 24 int index = 0; 25 lvSongType.Items.Clear(); 26 imageList1.Images.Clear(); 27 dr = cmd1.ExecuteReader(); 28 if (dr.HasRows) 29 { 30 while (dr.Read()) 31 { 32 string photoURL = KtvUnit.ImagePath + Convert.ToString(dr["songtype_URL"]); 33 //先给ImageList填充图片 34 imageList1.Images.Add(Image.FromFile(photoURL)); 35 ListViewItem lvItem = new ListViewItem(); 36 lvItem.Text = Convert.ToString(dr["songtype_name"]); 37 lvItem.Tag = Convert.ToString(dr["songtype_id"]); 38 lvItem.ImageIndex = index; 39 lvSongType.Items.Add(lvItem); 40 index++; 41 } 42 } 43 dr.Close(); 44 } 45 catch (Exception ex) 46 { 47 48 MessageBox.Show("系统出现异常" + ex.Message); 49 } 50 finally 51 { 52 con.Close(); 53 } 54 } 55 private void LoadSongType() 56 { 57 //读取数据库，读出该歌曲类型的所有歌曲 58 59 StringBuilder sb = new StringBuilder(); 60 //拼接SQL语句 61 sb.AppendFormat("select song_info.song_name,singer_info.singer_name,song_info.song_url from singer_info,song_info where song_info.singer_id=singer_info.singer_id and song_info.songtype_id={0}", Convert.ToInt32(lvSongType.SelectedItems[0].Tag)); 62 FrmSongList songList = new FrmSongList(); 63 64 songList.Sql = sb.ToString(); 65 songList.Previous = KtvClient.PrevioisForm.SongType;//指定返回的窗体是按歌曲类型点歌 66 songList.ShowDialog(); 67 this.Close(); 68 } 69 70 private void lvSongType_Click(object sender, EventArgs e) 71 { 72 LoadSongType(); 73 } 74 75 private void tsTYSingerMain_Click(object sender, EventArgs e) 76 { 77 FrmMain main = new FrmMain(); 78 main.Show(); 79 this.Hide(); 80 } 81 82 private void tsTYSingerAgain_Click(object sender, EventArgs e) 83 { 84 FrmMain main = new FrmMain(); 85 main.Playsong(); 86 } 87 Song song = new Song(); 88 private void tsTYSingerCut_Click(object sender, EventArgs e) 89 { 90 song.playState = SongPlayState.cut; 91 } 92 93 private void tsTYSingerYidian_Click(object sender, EventArgs e) 94 { 95 FrmPlayList list = new FrmPlayList(); 96 list.Show(); 97 } 98 99 private void tsTYSingerBack_Click(object sender, EventArgs e) 100 { 101 FrmMain main = new FrmMain(); 102 main.Show(); 103 this.Hide(); 104 }
金榜排行
1 public FrmMain frmMain; 2 DBHelp db = new DBHelp(); 3 string connectionStr = "server=.;database=MyKTV;uid=sa"; 4 private void FrmJB_Load(object sender, EventArgs e) 5 { 6 SqlConnection con = new SqlConnection(connectionStr); 7 con.Open(); 8 db.connection(); 9 string sql = "SELECT song_name,song_play_count FROM dbo.song_info ORDER BY song_play_count DESC"; 10 string sqlsongpath = "select resource_path from resource_path where resource_id=2"; 11 SqlCommand cmd = new SqlCommand(sqlsongpath, con); 12 KtvUnit.SongPath = cmd.ExecuteScalar().ToString(); 13 DataSet ds = db.dataSet(sql,"Count"); 14 this.dgvSongList.DataSource = ds.Tables["Count"].DefaultView; 15 } 16 17 18 19 private void dgvSongList_Click(object sender, EventArgs e) 20 { 21 DBHelp db = new DBHelp(); 22 if (dgvSongList.SelectedRows[0]!=null) 23 { 24 string songname = this.dgvSongList.SelectedRows[0].Cells["SongName"].Value.ToString(); 25 db.connection(); 26 string sql = string.Format("SELECT song_name,singer_name,song_url,song_photo_url FROM dbo.song_info,dbo.singer_info where dbo.singer_info.singer_id=dbo.song_info.singer_id and song_name=‘{0}‘", songname); 27 28 SqlDataReader reader = db.ExecuteReaders(sql.ToString()); 29 30 Song song; 31 if (reader.Read()) 32 { 33 song = new Song(); 34 song.SongName = reader["song_name"].ToString(); 35 song.SongURL = KtvUnit.SongPath + reader["song_url"].ToString(); 36 PlayList.AddSong(song); 37 } 38 reader.Close(); 39 } 40 else 41 { 42 MessageBox.Show("空"); 43 } 44 45 }
数字点歌
1 public FrmMain frmMain; 2 string connectionStr = "server=.;database=MyKTV;uid=sa"; 3 DBHelp db = new DBHelp(); 4 private SqlConnection con; 5 private void FrmNumber_Load(object sender, EventArgs e) 6 { 7 con = new SqlConnection(connectionStr); 8 con.Open(); 9 string sqlsongpath = "select resource_path from resource_path where resource_id=2"; 10 SqlCommand cmd = new SqlCommand(sqlsongpath, con); 11 KtvUnit.SongPath = cmd.ExecuteScalar().ToString(); 12 con.Close(); 13 for (int i = 1; i <= 4; i++) 14 { 15 for (int j = 1; j <= 3; j++) 16 { 17 Label label = new Label(); 18 label.ForeColor = Color.Red; 19 label.BackColor = Color.Pink; 20 label.Font=new System.Drawing.Font("华文彩云",20); 21 label.TextAlign = ContentAlignment.MiddleCenter; 22 label.Click += label_Click; 23 this.MouseMove += FrmNumber_MouseMove; 24 label.MouseHover += label_MouseHover; 25 label.Size = new System.Drawing.Size(80, 40); 26 label.Text = j.ToString(); 27 if (i > 1) 28 { 29 label.Text = (j + i + 1).ToString(); 30 } 31 if (i > 2) 32 { 33 label.Text = (j + i + 3).ToString(); 34 } 35 if (i > 3) 36 { 37 label.Text = (j + i + 5).ToString(); 38 } 39 label.Location = new Point(40 + 120 * j, 40 + 60 * i); 40 this.Controls.Add(label); 41 } 42 } 43 }
已点列表
1 private void FrmPlayList_Load(object sender, EventArgs e) 2 { 3 SongList(); 4 } 5 6 public void SongList() 7 { 8 lvSong.Items.Clear(); 9 for (int i = 0; i < PlayList.SongList.Length; i++) 10 { 11 if (PlayList.SongList[i]!=null) 12 { 13 ListViewItem item = new ListViewItem(); 14 item.Text = PlayList.SongList[i].SongName; 15 item.Tag = i; 16 string playstate = PlayList.SongList[i].PlayState == SongPlayState.unplayed ? "未播放" : "已播"; 17 item.SubItems.Add(playstate); 18 lvSong.Items.Add(item); 19 } 20 } 21 } 22 23 private void btnClose_Click(object sender, EventArgs e) 24 { 25 this.Close(); 26 }
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原文地址：http://www.cnblogs.com/PGYXZ/p/4689417.html
