实体框架DbSet包含0条记录(Entity Framework DbSet contains 0 records)

 所以我有以下问题： 
 
 我有一些与DB中的表对应的Vehicle实体。 但是当我尝试使用以下行检索所有记录时： 
 
var vehicles = db.VehicleSet.ToList();
 
 我得到了ZERO对象......而DB中的表格大约有。 18k记录。 
 
 知道问题可能在哪里，或者问题是否过于模糊？ 

So I have the following problem: 
 
I have some Vehicle entity that corresponds to a table in the DB. But when I try to retrieve ALL the records with the following line :
 
var vehicles = db.VehicleSet.ToList();
 
I get ZERO objects as result ... whilst the table in the DB has approx. 18k records.
 
Any idea where the problem might be, or is the question too vague?

原文：https://stackoverflow.com/questions/21258462