'Declaration
 
Public Overridable Function FindSessionView( _
   ByVal context As HttpContext, _
   ByVal id As String _
) As GoView

public virtual GoView FindSessionView( 
   HttpContext context,
   string id
)

If no GoView is stored in the Session, either because no such view was serialized, or because the session state was lost because the session timed-out, this will return null, causing no image to be streamed as a response. The table lookup key was generated by the view's MakeSessionViewID method.