private void Receptionist_Load(object sender, EventArgs e)
{
datagrid_Patients.DataSource = DataController.Instance().getPatientDataTable();
datagrid_Appointments.DataSource = DataController.Instance().getAppointmentDataTable();
datagrid_Patients.AllowUserToDeleteRows = false;
}
public void AddPatient(string first, string last, string address, string phone, string postcode, string dob)
{
Patients.Add(new Patient(first, last, address, phone, postcode, dob));
DataController.Instance().InsertPatientData();
}