private void OK_btn_Click(object sender, EventArgs e)
{
CreateCashFactory ccf = new CreateCashFactory(Counts_tbx.Text, Price_tbx.Text);
CashFun cf = ccf.CreateCashFun(Promotion_cbx.SelectedIndex);
item_lbx.Items.Add("单价：" + Price_tbx.Text + "元; 数量：" + Counts_tbx.Text + "件; " + Promotion_cbx.Text);
total += cf.GetResult();
result_lbl.Text = total.ToString() + "元";
//switch(Promotion_cbx.SelectedIndex)
//{
// case 0:
// total += Convert.ToDouble(Price_tbx.Text) * Convert.ToDouble(Counts_tbx.Text);
// break;
// case 1:
// total += Convert.ToDouble(Price_tbx.Text) * Convert.ToDouble(Counts_tbx.Text) * 0.8;
// break;
//}
//item_lbx.Items.Add("单价："+Price_tbx.Text+"元; 数量："+Counts_tbx.Text+"件; "+Promotion_cbx.Text);
//result_lbl.Text = total.ToString()+"元";
}
public CashFun CreateCashFun(int selectedindex)
{
CashFun cf = null;
try
{
switch (selectedindex)
{
case 0:
cf = new CashCost(1, _count, _price);
return(cf);
case 1:
cf = new CashDiscount(0.8, _count, _price);
return(cf);
case 2:
if (_count * _price >= 300)
{
cf = new CashRecost(100, _count, _price);
return(cf);
}
else
{
cf = new CashCost(1, _count, _price);
return(cf);
}
default:
return(cf);
}
}
catch
{
MessageBox.Show("尚未添加此优惠方案");
return(null);
}
}
