public void loadPatients(string opd)
{
opd opd2 = new opd();
opd2.loadVisitedPatients(opd);
dataGridView1.DataSource = opd2.table;
}
public void loadPatients()
{
opd opd = new opd();
opd.loadVisitedPatients();
dataGridView1.DataSource = opd.table;
}