c#播放器

List<string> mp = new List<string>();
private void Form1_Load(object sender, EventArgs e)
{
string[] path = Directory.GetFiles(@"C:\Documents and Settings\Administrator\桌面\sound");
for (int i = 0; i < path.Length; i++)
{
string a = Path.GetFileName(path[i]);
listBox1.Items.Add(a);
mp.Add(path[i]);
}
}

private void listBox1_DoubleClick(object sender, EventArgs e)
{
axWindowsMediaPlayer1.URL =mp[listBox1.SelectedIndex];

}

private void axWindowsMediaPlayer1_Enter(object sender, EventArgs e)
{

}
}
}