[OpenLayers-Users] Why Filter do not work ?

[Carlos Krefft]

This is how I have it working:
wfs = new OpenLayers.Layer.Vector("States", {
               strategies: [new OpenLayers.Strategy.BBOX()],
               protocol: new OpenLayers.Protocol.WFS({
                   url: "http://localhost:8080/geoserver/wfs",
                   featureType: "traget_grave3",
                   featureNS: "http://www.openplans.org/TestSpace",
                   srsName: "EPSG:900913",
                   version: "1.1.0",
                   extractAttributes: true,
                   isBaseLayer: false,
                   visibility: true
               }),
	filter: new OpenLayers.Filter.Logical({
                	type: OpenLayers.Filter.Logical.OR,
               	 	filters: 
		[
		new OpenLayers.Filter.Comparison({
                        		type:
OpenLayers.Filter.Comparison.EQUAL_TO,
                        		property: " GRAV_ID ",
                        		value: "3 A 1"
                    	}),
		new OpenLayers.Filter.Comparison({
                        	type: OpenLayers.Filter.Comparison.EQUAL_TO,
                        	property: " GRAV_ID ",
                        	value: "3 B 2"
                   	 })
		]
            })
});
-----Original Message-----
From: openlayers-users-bounces at lists.osgeo.org
[mailto:openlayers-users-bounces at lists.osgeo.org] On Behalf Of Mustafa646
Sent: Tuesday, March 08, 2011 10:13 AM
To: users at openlayers.org
Subject: [OpenLayers-Users] Why Filter do not work ?

hi,

By using code below, i successfully Draw  frature layer over Google Map

 var gmap = new OpenLayers.Layer.Google(
           "Google Streets", // the default
           {'sphericalMercator':true, numZoomLevels: 20 });

 wfs = new OpenLayers.Layer.Vector("States", {
               strategies: [new OpenLayers.Strategy.BBOX()],
               protocol: new OpenLayers.Protocol.WFS({
                   url: "http://localhost:8080/geoserver/wfs",
                   featureType: "traget_grave3",
                   featureNS: "http://www.openplans.org/TestSpace",
                   srsName: "EPSG:900913",
                   version: "1.1.0",
                   extractAttributes: true,
                   isBaseLayer: false,
                   visibility: true
               }),
map.addLayers([gmap,wfs]);

But when I use Filter to draw specific features on Google Map (code below),
then nothing happened and no features draw on Google Map.
Please explain where is problem and how i can fix it. I have already done
great search, but unfortunatelly could not found any solution.
please help!

 var myfilter = new OpenLayers.Filter.Comparison({
               type: OpenLayers.Filter.Comparison.EQUAL_TO,
               property: "GRAV_ID",
               value: "3 A 1"
           });

 wfs = new OpenLayers.Layer.Vector("States", {
               strategies: [new OpenLayers.Strategy.BBOX()],
               protocol: new OpenLayers.Protocol.WFS({
                   url: "http://localhost:8080/geoserver/wfs",
                   featureType: "traget_grave3",
                   featureNS: "http://www.openplans.org/TestSpace",
                   srsName: "EPSG:900913",
                   version: "1.1.0",
                   extractAttributes: true,
                   isBaseLayer: false,
                   visibility: true
               }),
               filter: myfilter
});
map.addLayers([gmap,wfs]);

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