title: How to join Enum with LINQ Query
body: <p>I have user table (Default ApplicationUser Table from <code>IdentityUser</code> by ASP.CORE)
  and I have added additional field for RoleType. There is also an Enum I added to specify Role Definition.</p>
  
  <pre><code>public enum Roles
  {
      Administrator = 1,
      Headquarters = 2,
      Branch = 3,
      Driver = 4,
      Client = 5
  }
  </code></pre>
  
  <p>Now I want to show all the users in a view as a table along with role description.</p>
  
  <p>I am unable to make LINQ query with Enum &amp; User table using LINQ join.</p>