title: Getting an error while filtering an entity results using contains (like operator)
body: <p>Could you please help me to filer a results using contains (like operator) which as following...</p>
  
  <pre><code>Public Function GetFromCacheByParentID(ParentID As String, Criteria As String) As List(Of tbl_equip_master) 
  Dim RelatedData = _RelatedData.GetFromCache
  Dim EquipMaster = Me.GetFromCache
  return (From e In EquipMaster, r In RelatedData Where r.linked_for = "EQP" And e.global_id = r.child_id And r.parent_id = ParentID And (e.tag_no.Contains(Criteria) Or e.object_name.Contains(Criteria) Or e.object_type.Contains(Criteria)) Select e)
  End Function
  </code></pre>
  
  <p>My intention is calling 2 results from cashed data and try to join and filter using contains</p>
  
  <p>But i am getting an error on ".contains".</p>