how to make a slider control to "slide" automatically while playing an mp3 file

[edd4u]

hello, i am making an mp3 player and i have this code which works fine when i'm trying to set the position of the current playing file.

what i don't know is how to make the slider control to automatically slide when i click the play file.

this is the code i have:

DoubleAnimation animatie = new DoubleAnimation();
animatie.Duration = player.NaturalDuration;
player.Pause();
player.Position = TimeSpan.FromSeconds(slider_position.Value);
player.Play();
if (player.NaturalDuration.HasTimeSpan)
{
slider_position.Minimum = 0;
slider_position.Maximum = player.NaturalDuration.TimeSpan.TotalSeconds;
}


i hope i made myself clear enough

[edd4u]

i forgot to mesnion that i am using WPF