private void btnOK_Click(object sender, EventArgs e)
{
double totalPrices = 0;
CashContext cc = null;
switch (cbxType.SelectedItem.ToString())
{
case "正常收费":
cc = new CashContext(new CashNormal());
break;
case "满300返100":
cc = new CashContext(new CashReturn("300", "100"));
break;
case "打八折":
cc = new CashContext(new CashDiscount("0.8"));
break;
}
totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text));
total += totalPrices;
lbxList.Items.Add(
"单价：" + txtPrice.Text + " 数量：" + txtNum.Text + " " + cbxType.SelectedItem + " 合计：" + totalPrices.ToString());
lblResult.Text = total.ToString();
}
private void btnOK_Click(object sender, EventArgs e)
{
double totalPrices = 0;
CashContext cc = null;
switch (cbxType.SelectedItem.ToString())
{
case "正常收费":
cc = new CashContext(new CashNormal());
break;
case "满300返100":
cc = new CashContext(new CashReturn("300", "100"));
break;
case "打八折":
cc = new CashContext(new CashDiscount("0.8"));
break;
}
totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text));
total += totalPrices;
lbxList.Items.Add(
"单价：" + txtPrice.Text + " 数量：" + txtNum.Text + " " + cbxType.SelectedItem + " 合计：" + totalPrices.ToString());
lblResult.Text = total.ToString();
}