protected void Page_Load(object sender, EventArgs e)
 {
     d = new DoctorDAO().getDocs();
     if (d != null)
     {
         if (d.Tables[0].Rows.Count != 0)
         {
             Docs.DataSource = d;
             Docs.DataBind();
         }
         else
         {
             Docs.DataSource = null;
             Docs.DataBind();
         }
     }
 }