protected void Button2_Click(object sender, EventArgs e) { string transferDate = DateTime.ParseExact(TextBox3.Text, "dd/MM/yyyy", System.Globalization.CultureInfo.InvariantCulture).ToString(); string transferTime = TextBox4.Text; string reasonForTransfer = TextBox2.Text; int transferToDoctorId = Convert.ToInt32(DropDownList2.SelectedValue); int transferByDoctorId = Convert.ToInt32(Session["doctorId"].ToString()); int patientId = Convert.ToInt32(Session["patientId"].ToString()); Doctor_IPDDoctorTransferBL objDoctor_IPDDoctorTransferBL = new Doctor_IPDDoctorTransferBL(); Session["transferToDoctorId"] = objDoctor_IPDDoctorTransferBL.Doctor_IPDDoctorTransfer(transferDate, transferTime, reasonForTransfer, transferToDoctorId, transferByDoctorId, patientId); Label1.Visible = true; }