c# problem with mediaplayer
<p>my media player is not working i have imported dll of windows player. And i have a folder name called upload in my application itself.In the first button i will upload the audio and in the second button im getting the filename using session and using it in the second button when ever i click second button media player is getting disappeared and im getting the fullpath with filename in the second button dont know why media player getting disappeared and i want this website too host also please help its very urgent.</p>

<pre><code>protected void Button1_Click(object sender, EventArgs e)
{
    string sr = Server.MapPath("./upload/");
    if (FileUpload1.HasFile)
        try
        {
            FileUpload1.SaveAs(Server.MapPath("./upload/") +
                 FileUpload1.FileName);
            Label1.Text = "File name: " +
                 FileUpload1.PostedFile.FileName + "&lt;br&gt;" +
                 FileUpload1.PostedFile.ContentLength + " kb&lt;br&gt;" +
                 "Content type: " +
                 FileUpload1.PostedFile.ContentType;
            Session["v"] = FileUpload1.PostedFile.FileName;
        }
        catch (Exception ex)
        {
            Label1.Text = "ERROR: " + ex.Message.ToString();
        }
    else
    {
        Label1.Text = "You have not specified a file.";
    }
}
protected void Button2_Click(object sender, EventArgs e)
{
    string dr1 = Session["v"].ToString();
    string dr2 = Server.MapPath("./upload/" + dr1);
    MediaPlayer1.Filename = dr2;
}
</code></pre>
