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问题描述
我有3张桌子: **地区**: ID, 名称 **区** ID, RegionID, 名称 **城市** ID, DistrictID, 名称 当我这样写的时候:
I have 3 Tables: **Region**: ID, Name **District** ID, RegionID, Name **City** ID, DistrictID, Name When I write like this:
var result = (from item in db.Region.Include("District.City") select item).ToList();结果我有了彼此依赖的对象 例如:在地区"中,我有2个对象,在地区4"中,在城市"中有8个对象 我想用Linq Join而不是include 写这个
In result I have objects Dependent on each other for example: In Region I have 2 Objects, In District 4 objects and In City 8 Objects I want to write this with Linq Join not with include can you help me??
推荐答案可以使用内部联接吗? Can you use an inner join, something like: var result = from region in db.Region join district in db.District on district.RegionID equals region.ID join city in db.City on city.DistrictID equals district.DistrictID select ...
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