In my app, I construct a FeatureLayer with data from a query, and I want to add a label to the polylines that display the data value. I've tried a couple things, including the code below, but nothing has worked.
layer.hasLabels = true;
var labelSymbol = new esri.symbol.TextSymbol('');
var json = {
"labelExpressionInfo": {"value": "{thecolor}"},
"useCodedValues": false,
"labelPlacement":"above-start",
"fieldInfos": [{fieldName: "thecolor"}]
};
this.map.showLabels = true;
//create instance of LabelClass
var lc = new LabelClass(json);
lc.symbol = labelSymbol; // symbol also can be set in LabelClass' json
layer.setLabelingInfo([ lc ]);
