How to delete file from folder in asp.net

How to delete any file form the folder

protected void btnDelete_Click(object sender, EventArgs e)
{
      string file_name = yourfilename;
      string path = Server.MapPath("files//" + file_name);
      FileInfo file = new FileInfo(path);
      if (file.Exists)//check file exsit or not      {
           file.Delete();
           lbl_output.Text = file_name + " file deleted successfully";
           lbl_output.ForeColor = Color.Green;
      }
      else      {
           lbl_output.Text = file_name + " This file does not exists ";
           lbl_output.ForeColor = Color.Red;
      }}

 I hope this will help you