Dapper 将特定列的子集直接返回到 DTO
本文关键字:返回 DTO 子集 Dapper | 更新日期: 2023-09-27 18:32:18
Dapper 是否可以将数据直接返回到只有字段子集的 DTO/POCO 中 - 即我可以使用不包含数据库表中所有列的类吗?
例如,如果我有以下查询(请原谅我的sql - 不是我的强项):
select c.Name as "Customer", o.Number as "OrderNo", ol.Number as "Line", p.Description as "Product", ol.Qty
from order o
join customer c on c.Id = o.CustomerId
join orderLine ol on ol.OrderID = o.Id
join product p on p.Id = ol.ProductId
where o.date >= 1/9/2013 and o.date <= 30/9/2013
如何使用 Dapper 将其读入以下类的数组/IEnumerable:
class CustOrders{
string Customer {get;set;}
integer Order {get;set;}
string Line {get;set;}
string Product {get;set;}
integer Qty {get; set;}
}
谢谢提姆
你可以执行以下操作
var sql = @"select c.Name as [Customer], o.Number as [Order], ol.Number as [Line], p.Description as [Product], ol.Qty ...";
var result = connection.Query<CustOrders>(query);