//点击数量+号或点击数量-号或自己输入一个值
public void ChangeItmeQty(ShoppingCartLine cartLine, int qty)
{
if (qty == 0)
{
RemoveItem(cartLine);
}
cartLine.Qty = qty;
}
//添加
public void AddGoods(Goods.Goods goods, int quantity)
{
ShoppingCartLine line = ShoppingCartLines.FirstOrDefault(p => p.Goods.Id == goods.Id);
if (line == null)
{
ShoppingCartLines.Add(new ShoppingCartLine()
{
Goods = goods,
Qty = quantity,
ShoppingCartId = this.Id
});
}
else
{
line.Qty += quantity;
}
}
//移除
public void RemoveItem(ShoppingCartLine cartLine)
{
ShoppingCartLines.Remove(cartLine);
}