title: The name xxx does not exist in the current context. What am I doing wrong?
body: <pre><code> var result = from lr in _db.LeaveRequest
                   join th in _db.TotalHourslu    
                   on lr.TotalHoursEffect 
                   equals th.Minutesselect
                       select new { lr.TotalHoursEffect, th.Minutes, tr.Display };
  </code></pre>
  
  <p>ERROR:
  The name '_db' does not exist in the current context
  The name '_db' does not exist in the current context
  The name ' tr ' does not exist in the current context</p>