mysql - 如何使用linq命令选择此数据

Question

我有一个名为attraction的表，它有一个id列，它是一个带有表price的type的复合键.

Attraction: id, name, city

price: id, type, price

如何在 Visual Studio 中通过 linQ 在一行中选择这样的数据:

id, name, city, type1_price, type2_price

Answer 1

You want to access anonymous type to some kind of object and to acheive this you can try like 
declare array of 
var data= new[] { new 
            { 
                Id= 0,
                Name = "",
                City = "",
                Price1 = 0,
                Price2 = 0,
            } }.ToList();

then you can write query like

data = (from a in attraction 
        join p in price on a.Id equals p.Id
        select new
        {
                Id= a.Id,
                Name = a.Name,
                City = a.City,
                Price1 = a.Price,
                Price2 = p.Price,
        }).ToList(); 

Try above