private void button2_Click_1(object sender, EventArgs e)
        {
            ADDPATIENT formUpdate = new ADDPATIENT("update");

            int index = Manageofhospital.listPatient.IndexOf(this.PatientSelected);

            ADDPATIENT.patient.Id            = PatientSelected.Id;
            ADDPATIENT.patient.Name          = PatientSelected.Name;
            ADDPATIENT.patient.District      = PatientSelected.District;
            ADDPATIENT.patient.Ward          = PatientSelected.Ward;
            ADDPATIENT.patient.Indentitycard = PatientSelected.Indentitycard;
            ADDPATIENT.patient.Gender        = PatientSelected.Gender;
            ADDPATIENT.patient.Dateofbirth   = PatientSelected.Dateofbirth;
            ADDPATIENT.patient.Sick          = PatientSelected.Sick;
            ADDPATIENT.patient.Nationality   = PatientSelected.Nationality;
            formUpdate.ShowDialog();

            Patient1 a = (Patient1)listPatient[index];

            a.Id               = ADDPATIENT.patient.Id;
            a.Name             = ADDPATIENT.patient.Name;
            a.District         = ADDPATIENT.patient.District;
            a.Ward             = ADDPATIENT.patient.Ward;
            a.Indentitycard    = ADDPATIENT.patient.Indentitycard;
            a.Gender           = ADDPATIENT.patient.Gender;
            a.Dateofbirth      = ADDPATIENT.patient.Dateofbirth;
            a.Sick             = ADDPATIENT.patient.Sick;
            a.Nationality      = ADDPATIENT.patient.Nationality;
            ADDPATIENT.patient = null;
            LoadPatient();
            MessageBox.Show("Update successful");
        }
        private void button1_Click_1(object sender, EventArgs e)
        {
            ADDPATIENT formAdd1 = new ADDPATIENT("Add");

            formAdd1.ShowDialog();
            if (ADDPATIENT.patient != null)
            {
                Patient1 p = new Patient1(ADDPATIENT.patient);

                if (string.IsNullOrEmpty(p.Name.ToString()) || string.IsNullOrEmpty(p.District.ToString()) || string.IsNullOrEmpty(p.Ward.ToString()) || string.IsNullOrEmpty(p.Gender.ToString()) || string.IsNullOrEmpty(p.Indentitycard.ToString()) || string.IsNullOrEmpty(p.Dateofbirth.ToString()) || string.IsNullOrEmpty(p.Sick.ToString()) || string.IsNullOrEmpty(p.Nationality.ToString()))
                {
                    MessageBox.Show("Add successful but empty", "Notification");
                }
                else
                {
                    listPatient.Add(p);
                    MessageBox.Show("Add successful", "Notification");
                    LoadPatient();
                }
            }
        }