public IEnumerator <T> GetEnumerator() { var e = enumerator; if (e == null) { throw new InvalidOperationException( "DbDataReader cannot be enumerated more than once."); } enumerator = null; return(e); }
public ProjectionReader(DbDataReader reader, Func <ProjectionRow, T> projector) { enumerator = new SelectDbEnumerator <T>(reader, projector); }