private void button1_Click(object sender, EventArgs e)
{
int allTotal = 0;
List <CheckBox> checkBoxList = new List <CheckBox>();
List <NumericUpDown> amtList = new List <NumericUpDown>();
List <ShoppingCar> sPCars = new List <ShoppingCar>();
GroupBoxList(productsGroupBoxA, ref checkBoxList, ref amtList);
ShoppingCar sc = new ShoppingCar(checkBoxList, amtList, productsGroupBoxA.Text);
sPCars.Add(sc);
GroupBoxList(productsGroupBoxB, ref checkBoxList, ref amtList);
sc = new ShoppingCar(checkBoxList, amtList, productsGroupBoxB.Text);
sPCars.Add(sc);
GroupBoxList(productsGroupBoxC, ref checkBoxList, ref amtList);
sc = new ShoppingCar(checkBoxList, amtList, productsGroupBoxC.Text);
sPCars.Add(sc);
OverDiscount dis;
GiveDiscount gDis;
//幫每個項目看要不要打折
foreach (var shop in sPCars)
{
allTotal += (int)shop.ReturnTotal();
switch (sc.ProductGroup)
{
case "甲商品區":
dis = new OverDiscount(2, 1000, 0.9);
dis.Discount(shop);
break;
case "乙區商品":
dis = new OverDiscount(3, 5, 0.85);
dis.Discount(shop);
break;
case "丙區商品":
gDis = new GiveDiscount(3);
gDis.Discount(shop);
dis = new OverDiscount(1, 2, 0.95);
dis.Discount(shop);
break;
}
}
if (nameTextBox.Text == "" || allTotal == 0)
{
if (nameTextBox.Text == "")
{
MessageBox.Show("Please enter buyer name");
}
else if (allTotal == 0)
{
MessageBox.Show("Please check any item");
}
}
else
{
string showText = "";
showText += nameTextBox.Text + " ";
showText += DateTime.Now.RocDate();
foreach (var shop in sPCars)
{
if (sc.ReturnTotalQuantity() != 0)
{
AddShowText(ref showText, sc);
}
}
showText += string.Format("\n總金額:{0:c0}", allTotal);
MessageBox.Show(showText);
}
}
//將字串加到輸出字串
private void AddShowText(ref string s, ShoppingCar spCar)
{
s = s + string.Format("\n====={0}=====\n購買商品: {1}\n總金額: {2:C0}", spCar.ProductGroup, spCar.ReturnProductsName(), spCar.ReturnTotal());
}