title: Create List of child objects from list of parent object
body: <p>I would like to create list of child objects from list of parent object. Like If i have list of bookingroom which has one member room then i would like to create list of room from it.</p>
  
  <p>eg. code:</p>
  
  <pre><code>    Dim BookingRoomList As List(Of BookingRoom) = New List(Of BookingRoom)
      Dim RoomList As List(Of Room) = New List(Of Room)
  
      BookingRoomList = BookingRooms.FillGrid()
      For Each BookingRoomInfo As BookingRoom In BookingRoomList
          RoomList.Add(BookingRoomInfo.RoomInfo)
      Next
  </code></pre>
  
  <p>Is there any short cut method instead of iterating over for earch?</p>