private void button_save_Click(object sender, EventArgs e) { ArrayList patientInfo = new ArrayList(); patientInfo.Add(textBox_appid.Text); patientInfo.Add(textBox_name.Text); patientInfo.Add(comboBox_gender.Text); patientInfo.Add(textBox_age.Text); patientInfo.Add(textBox_phone.Text); patientInfo.Add(richTextBox_address.Text); patientInfo.Add(textBox_disease.Text); patientInfo.Add(textBox_doctorid.Text); patientInfo.Add(textBox_docname.Text); patientInfo.Add(textBox_roomnum.Text); patientInfo.Add(dateTimePicker1.Text); DatabaseHelperClass ob = new DatabaseHelperClass(patientInfo); if (ob.takeAppointment()) { MessageBox.Show("Appointed"); } else { MessageBox.Show("Error Taking Appointment"); } }