[OpenLayers-Users] displaying attribute content in wfs

[Phil Scadden]

>
> In my map i have a wfs layer that i want display content of one 
> attribute (postgis table) by feature click.
> Can you help me the better choice to that?

An alternative approach is using WFSProtocol and DrawFeature control.

Create a WFSProtocol object for your wfs layer then:

ptSelCtrl = new OpenLayers.Control.DrawFeature(selectedLayer, 
OpenLayers.Handler.Point,{
                 handlerOptions: {
                     citeCompliant: true
                 }
             });
ptSelCtrl.events.register("featureadded", this, function (e) {
// could use BBOX instead of DWITHIN for servers that dont support 
DWITHIN (eg arcgis 9.3)
                 var pfilter = new OpenLayers.Filter.Spatial({
                     type: OpenLayers.Filter.Spatial.DWITHIN,
                     distance: 100, // you probably want to think about 
scale-independent distance method for this
                     distanceUnits: "meters",
                     value: e.feature.geometry
                 });
                wfsProtocol.read({
                     filter: pfilter,
                     callback: processTheReturn,
                     scope: strategy
                 });


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