public List<PortalPosition> Select(NameValueCollection where, NameValueCollection orderby, int _pageIndex, int _pageSize, out int _totalCount)
 {
     PortalPositionDA da = new PortalPositionDA();
     return da.Select(where, orderby, _pageIndex, _pageSize, out _totalCount).DataTableToList<PortalPosition>();
 }
 public List<PortalPosition> Select(NameValueCollection where, NameValueCollection orderby)
 {
     PortalPositionDA da = new PortalPositionDA();
     return da.Select(where, orderby).DataTableToList<PortalPosition>();
 }