I am a little confused , what are the projection operations in Linq queries? When does a Select operation in a Linq query become a Projection Operation? Can someone please enlighten me?
我有点困惑，Linq查询中的投影操作是什么？ Linq查询中的选择操作何时成为投影操作？有人可以赐教吗？
1 个解决方案
#1
4
When the select clause produces something other than a copy of the source element, the operation is called a projection.
当select子句生成除source元素副本之外的其他内容时，该操作称为投影。
something like this is called a projection operation
这样的事情被称为投影操作
var innerJoinQuery =
from cust in customers
join dist in distributors on cust.City equals dist.City
select new { CustomerName = cust.Name, DistributorName = dist.Name };
#1
4
When the select clause produces something other than a copy of the source element, the operation is called a projection.
当select子句生成除source元素副本之外的其他内容时，该操作称为投影。
something like this is called a projection operation
这样的事情被称为投影操作
var innerJoinQuery =
from cust in customers
join dist in distributors on cust.City equals dist.City
select new { CustomerName = cust.Name, DistributorName = dist.Name };