How can I convert this join to LINQ syntax?

Question

I want to retrieve all tools used by products with X = 14 , how can I convert this select to LINQ?

SELECT DISTINCT t.* FROM Product p
INNER JOIN ProductTool pt ON pt.Product_ID = p.ID
INNER JOIN Tool t ON t.ID = pt.Tools_ID
WHERE p.X = 14

Is GroupJoin what I need or what?

tools.GroupJoin(products, t=>, p=>, ...)
products.GroupJoin(tools, p=>, t=>, ...)

Answer 1

如果正确设置了外键，则实体框架应选择该关系，并且您可以简单地执行以下操作：

var tools = from p in products where pX == 14 select p.Tool;