[GIS] Problem with multiple feature selection

Question

In an attempt to retrieve all features (point geometry) that fall in a selected polygon, I get the error this.layer.addFeatures is not a function. My code is as shown below:

function createWFSVector(map, WFS_HOST) {
var population = new OpenLayers.Layer.Vector("Population Vector", {
    strategies: [new OpenLayers.Strategy.BBOX()],
    protocol: new OpenLayers.Protocol.WFS({
        version: "1.1.0",
        url: WFS_HOST,
        featureType: "population_layer",
        featureNS: "pe_ns",
        srsName: "EPSG:4326"
    })
});

addMapControls(map, population);
map.addLayers([population]);
}

function addMapControls(map, wfsLayer) {
var select = new OpenLayers.Control.SelectFeature([wfsLayer], {
    box: true,
    multiple: true,
    onSelect: addSelected,
    onUnselect: clearSelected
});
map.addControl(select);
map.addControl(new OpenLayers.Control.EditingToolbar(select));
select.activate();
}

function addSelected(feature) {
selectedFeatures.push(feature);
}

function clearSelected(feature) {
selectedFeatures = [];
}

I can't seem to spot the problem with my code. Any assistance will be appreciated.

Answer 1

You've made mistake: new OpenLayers.Control.EditingToolbar(select) should be new OpenLayers.Control.EditingToolbar(wfsLayer) in your case.