private void raToDay_CheckedChanged(object sender, EventArgs e) { if (raOR.Checked == true) { dataGridView1.DataSource = order.ORDER_TOTAL_TODAY(Convert.ToDateTime(dt3.Value.ToShortDateString())); CalculateTotalAmount1(); } else if (raPOR.Checked == true) { dataGridView1.DataSource = order.PURCHASE_TOTAL_TODAY(Convert.ToDateTime(dt3.Value.ToShortDateString())); CalculateTotalAmount1(); } else { dataGridView1.DataSource = order.ITEM_TOTAL_TODAY(Convert.ToDateTime(dt3.Value.ToShortDateString())); CalculateTotalAmount2(); } groupBox3.Visible = false; groupBox4.Visible = false; }