title: Set a Primary Key for an Entity without ingaffect database
body: <p>I'm working on an ASP.NET MVC project, I use Entity Framework (Database First), I created a data model depend on SQL server database, I created a Table in the database and I updated the data model from the database, and when I try to add a record to the new table I created (this table doesn't have a PK) I got an error, when I search about the error I Understood that in Entity Framework need to have a PK for Entity.</p>
  <p>So I ASK if I can set a Primary Key for an Entity without affect database, or any other solution to solve this problem.</p>