protected void ScheduleAddButton_Click(object sender, EventArgs e) { if (Page.IsValid) { ScheduleBLL scbll = new ScheduleBLL(); Schedule sc = scbll.GetScheduleById(Convert.ToInt32(Request.QueryString["ScheduleID"])); sc.ScheduleDtTime = System.DateTime.Parse(DateOfAppointment.Text); sc.InputDtTime = System.DateTime.Now; sc.TraineeID = Convert.ToInt32(TraineeList.SelectedValue); int res = scbll.EditSchedule(sc); if (res > 0) { Response.Redirect("http://localhost:54175/Scheduler.aspx"); } } }