Create your music player in c# using gridview with simple logic

public partial class _Default : System.Web.UI.Page
{
     public string xFile;
     public void getFileList()
     {
          DirectoryInfo di=new DirectoryInfo("C://Temp/My");
          DataTable dt = new DataTable();
          dt.Columns.Add("songname");
          if (di.Exists == true)
          {
              foreach (FileInfo fi in di.GetFiles())
              {
                   DataRow dr = dt.NewRow();
                   dr["songname"] = fi.FullName;
                   dt.Rows.Add(dr);
              }
          }
          GridView1.DataSource = dt;
          GridView1.DataBind();
          }
protected void Page_Load(object sender, EventArgs e)
{
     if (!IsPostBack)
     {
         getFileList(); }
     }
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
     if (e.Row.RowType != DataControlRowType.Header)
     {
          e.Row.Attributes["onmouseover"] = "javascript:setMouseOverColor(this);";
          e.Row.Attributes["onmouseout"] = "javascript:setMouseOutColor(this);";
          e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink((GridView
          sender, "Select$" + e.Row.RowIndex);
     }
}
protected void imgBt_Click(object sender, ImageClickEventArgs e)
{
     xFile = GridView1.Rows[GridView1.SelectedIndex].Cells[1].Text;
     TextBox1.Text = xFile;
     string _Height = "50";
     string _Width = "250";
     StringBuilder sb = new StringBuilder("<OBJECT ID='" + this.ClientID + "' name='" + 
     this.ClientID + "' " + "CLASSID='CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6'" +
     "VIEWASTEXT" +"height=" + _Height + " " + "width=" + _Width + ">");
     string _fileName = xFile; //"C://myExample/008 BACHAPAN - MANHAR.MP3";
     sb.Append("<PARAM name='URL' value='" + xFile + "'>");
     sb.Append("<PARAM name='AutoStart' value='True'>");
     sb.Append("<PARAM name='playCount' value='1'>");
     sb.Append("<PARAM name='volume' value='100'>");

     //output ending object tag

     sb.Append("</OBJECT>");

     //flush everything to the output stream

     Response.Write(sb.ToString());
}

////

Write below javascript code in to your ASPX page

<script type="text/javascript">
var oldgridSelectedColor;
function setMouseOverColor(element)
{
oldgridSelectedColor = element.style.backgroundColor;
element.style.backgroundColor='#dcdcdc';
element.style.cursor='hand';

//element.style.textDecoration='underline';
}
function setMouseOutColor(element)
{
     element.style.backgroundColor=oldgridSelectedColor;
     element.style.textDecoration='none';
}
function playMe(xfile)
{
     alert(xfile);
     var mfile = xfile;
     document.write("<EMBED SRC='"+ mfile +"' WIDTH=100 HEIGHT=100></EMBED>");
     alert(mfile);
}
      function checkm()
</script>