使用LINQ连接两个表

我有两张桌子：

PlanMaster（PlanName，Product_ID）

和

ProductPoints（Entity_ID，Product_ID，Comm1，Comm2）

现在我将Entity_ID存储到一个存储在’int’中的Session中：

int getEntity = Int16.Parse(Session["EntitySelected"].ToString()); 

我想在我的LINQ查询中显示上面表格中的所有项目

Entity_ID = getEntity

这是我的LINQ查询：

 var td = from s in cv.Entity_Product_Points join r in dt.PlanMasters on s.Product_ID equals r.Product_ID where s.Entity_ID = getEntity select s; 

现在它给我一个错误，上面写着：

无法隐式转换类型’int？’ ‘bool’

这里出了什么问题？ 感谢您提前的意见！

Answer 1

尝试将其更改为

  where s.Entity_ID == getEntity 

Answer 2

 var td = from s in cv.Entity_Product_Points join r in dt.PlanMasters on s.Product_ID equals r.Product_ID where s.Entity_ID == getEntity select s; 

=不等于==

Answer 3

where s.Entity_ID = getEntity应该是where s.Entity_ID == getEntity 。

Answer 4

难道不应该是双等于？

Answer 5

 var db1 = (from a in AccYearEntity.OBLHManifests select a).ToList(); var db2 = (from a in MasterEntity.UserMasters select a).ToList(); var query = (from a in db1 join b in db2 on a.EnteredBy equals b.UserId where a.LHManifestNum == LHManifestNum select new { LHManifestId = a.LHManifestId, LHManifestNum = a.LHManifestNum, LHManifestDate = a.LHManifestDate, StnCode = a.StnCode, Operatr = b.UserName }).FirstOrDefault(); 

Answer 6

我想会这样做，

其中s.Entity_ID == getEntity