protected void Btn_Add_Click(object sender, EventArgs e) { Repair repair = new Repair(); repair.ApartmentNo = this.apartmentNo.SelectedValue; repair.RoomNo = this.roomNo.SelectedValue; repair.StudentNumber = this.StudentNumber.Text; repair.RepairTime = DateTime.Parse(this.repairTime.Text); repair.RepairThing = this.repairThing.Text; repair.RepairQuantity = this.repairQuantity.Text; repair.RepairReason = this.repairReason.Text; repair.AddRepairInfo(); this.ErrMessage.Text = "<font color=red>" + repair.ErrMessage + "</font>"; }