C# 使用ToList（）将SQL查询转换为LINQ

我试图将此SQL查询转换为LINQ，但我最多只能连接表。在此之后，我无法理解WHERE部分的语法或如何将其作为列表返回（ToList（））

据我所知：

var groups = from ENG_Hazmanifest in db.ENG_Hazmanifest 
                          join ENG_Locations in db.ENGI_Locations
                          on ENG_Hazmanifest.site equals ENG_Locations.id

我需要向此添加什么

找到了答案

var groups = from ENG_Hazmanifest in db.ENG_Hazmanifest
                          where ENG_Hazmanifest.display == '1'
                          join ENG_Locations in db.ENGI_Locations
                          on ENG_Hazmanifest.site equals ENG_Locations.id select ENG_Hazmanifest;

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您可以在

连接之前添加
where ENG_Hazmanifest.display='1'
（当然，在最后添加一个适当的
选择
，获取您需要的值）。我不知道应该如何添加选择部分。也许我的代码可以帮助您？
var groups = from ENG_Hazmanifest in db.ENG_Hazmanifest
                          where ENG_Hazmanifest.display == '1'
                          join ENG_Locations in db.ENGI_Locations
                          on ENG_Hazmanifest.site equals ENG_Locations.id select ENG_Hazmanifest;