This is something kind of puzzle me. Hope someone can help.
I have a queried feature set that I want to add to the map as a graphic layer.
I have a cope of codes that seems in the right scope with lang.hitch included in the function queryfeatures. but somehow I couldn't get rid of the this.map.addLayer(myGraphicLayer) with 'TypeError: this.map.addLayer is not a function error. I checked community. The error is most like caused by out of scope. But it seems it is not the issue. Thanks for you help.
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layer.queryFeatures(featureQuery, lang.hitch(this, function (featureSet) { //there is a lang.hitch here
if (featureSet && featureSet.features.length > 0) {
var parcelSymbol = new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
Color.fromArray([0, 255, 255]),
//new Color([0, 255, 255]),
4))
var marketgraphics = new GraphicsLayer({
graphics: featureSet.features
});
this.map.addLayer(marketgraphics); //here is the error
