我正在写一些有一些实体的C#。我的实体是:
Address Store
------- -----
ID ID
StreetAddress AddressID
City Name
State
我需要做一个LINQ查询,它给我一个特定城市的所有商店。目前,我有:
var addresses = await Address.GetFromDatabase();
var results = address in addresses
where (address.City == 'Seattle')
select new
{
StoreID = store.ID
StoreAddress = address.StreetAddress
}
此代码显然不起作用。商店的连接不存在。但是,由于Store
也必须访问数据库,因此我不确定该怎么做。我感谢您给予的任何帮助。
答案 0 :(得分:4)
您可以在LINQ中进行连接,这非常简单:
var results = from address in addresses
join store in stores
on address.ID equals store.AddressID
where (address.City == 'Seattle')
select store;