On Thu, Jun 10, 2010 at 11:26 PM, Zer <zer_m...@hotmail.com> wrote: > > Hi users, > > I have a vector layer that shows features fetched from Geoserver using fixed > strategy and wfs protocol together with a filter. Works just fine! > > I then use wfsParcelLayer.events.on and a function on the featuresadded > event to zoom in to the feature. That works fine too. > > However, sometimes the filter returns no hits, witch is ok. I would then > like to show a message to inform the user that there where no hits. I tried > to do that using the same event I use when zooming in to the feature, but > since no features are added, the event never fires. I also tried the > 'beforefeaturesadded' event, but the result is (of course) the same. > > How can I capture the result to check there are any features or not in the > result? Is there a callback function that I can use in the wfs protocol? > > I've added some of my code here. > > Thanks, > > -ZM > > > wfsLayer = new OpenLayers.Layer.Vector("Vector"), { > strategies: [new OpenLayers.Strategy.Fixed({ > preload: false > })], > styleMap: vectorStyleMap, > protocol: new OpenLayers.Protocol.WFS({ > version: "1.1.0", > extractAttributes: true, > filter: filter, > .... > > wfsLayer.events.on({ > featuresadded: function(event) { > map.zoomToExtent(wfsLayer.getDataExtent > } > });
Hi. How about wfsLayer.events.on({ featuresadded: function(event) { map.zoomToExtent(this.getDataExtent()); }, loadend: function() { if(this.features.length === 0) { alert("no features loaded"); } } }); ? -- Eric Lemoine Camptocamp France SAS Savoie Technolac, BP 352 73377 Le Bourget du Lac, Cedex Tel : 00 33 4 79 44 44 96 Mail : eric.lemo...@camptocamp.com http://www.camptocamp.com _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users