Whitespace might be significant, can you try <ogc:PropertyIsNull> <ogc:PropertyName>YEAR</ogc:PropertyName> </ogc:PropertyIsNull>
> -----Ursprüngliche Nachricht----- > OpenLayers has a OpenLayers.Filter.Comparison.IS_NULL filter that produces > XML such as: > > <ogc:PropertyIsNull> > <ogc:PropertyName> > YEAR > </ogc:PropertyName> > </ogc:PropertyIsNull> _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
