我有一个数据库,其中包含不同的重量费用值,如果总重量是2.5公斤,那么我想设置一个条件,从数据库中选择最接近的上限值,如果是avaivalbe,则需要3公斤的费用。
我有这个代码,在总重量的基础上我想选择最接近的上限值费用和总重量成本:
public ActionResult LoadweightByServices(int service_id, float totalweight) {
OrderModel om = new OrderModel();
Subcategory_ _Subcategory = new Subcategory_();
var we = om.Get_Shipping_weight(service_id).ToList();
double? weight = we.SingleOrDefault().Weight;
if (totalweight == weight || totalweight < weight)
{
float? cost=we.SingleOrDefault().Cost;
float? charge=we.SingleOrDefault().Charge;
}
return View()
}
答案 0 :(得分:0)
public ActionResult LoadweightByServices(int service_id, float totalweight) {
OrderModel om = new OrderModel();
Subcategory_ _Subcategory = new Subcategory_();
var we = om.Get_Shipping_weight(service_id).ToList();
double? weight = we.SingleOrDefault().Weight;
if (Math.Ceiling(Convert.ToDouble(totalweight)) == weight || Math.Ceiling(Convert.ToDouble(totalweight)) < weight)
{
float? cost=we.SingleOrDefault().Cost;
float? charge=we.SingleOrDefault().Charge;
}
return View()
}
答案 1 :(得分:0)
使用CEILING
功能。
例如Select Ceiling(1.1)
返回2
返回大于或等于指定数值表达式的最小整数。
在您的代码中,尝试
weight = Math.Ceiling(Convert.ToDecimel(we.SingleOrDefault().Weight));