/// <summary>
/// 设置购物车商品数量
/// </summary>
/// <param name="user_id"></param>
/// <param name="guid"></param>
/// <param name="shoppingCartId"></param>
/// <param name="num"></param>
/// <returns></returns>
public bool SetShoppingCartGoodsNum(int user_id, string guid, int shoppingCartId, int num)
{
var result = false;
if (num > 0)
{
using (var holycaDb = new HolycaEntities())
{
var shoppingCartEntity = holycaDb.Sale_ShoppingCart.First(s => s.intShopCartID == shoppingCartId);
if (shoppingCartEntity != null)
{
try
{
shoppingCartEntity.intBuyCount = num;
holycaDb.SaveChanges();
result = true;
}
catch (Exception)
{
holycaDb.Refresh(RefreshMode.ClientWins, shoppingCartEntity);
holycaDb.SaveChanges();
result = false;
}
}
}
}
return result;
}
