private void button1_Click(object sender, EventArgs e)
        {
            if (grid.RowCount == 1)
            {
                MessageBox.Show("No Lab tests scheduled for the day!!!");
            }
            else
            {
                f_Lab           home = this;
                DataGridViewRow row  = grid.CurrentRow;
                string          MRN  = row.Cells[0].Value.ToString();
                string          date = row.Cells[2].Value.ToString();
                int             mrn  = Convert.ToInt16(MRN);
                labTest         test = new labTest(mrn, date);



                test.Show();
                home.Dispose();
            }
        }