Legend Status 404 when chaging Labels on DynamicMapServiceLayer in 3.x

LoriEmerson_McCormack — Fri, 12 Jul 2019 22:40:39 GMT

When a user changes a label dynamically, the Legend item for that layer disappears from the Legend and an error saying "unable to load /proxy/?<my map service URL>/legend status: 404" appears in the Console (when looking at the F12 Developer Tools pane).

Here is my code snippet. What could be causing the legend error?

code:

labelClass = new LabelClass({

labelExpression: newLabel, /* such as [OwnerName] */

labelPlacement: lPlacement, /* such as 'always-horizontal' for polygon */

symbol: new TextSymbol()

});

var drawingOptions = new LayerDrawingOptions();

drawingOptions.labelingInfo = [labelClass];

drawingOptions.showLabels = true;

var options = [];

options[lId] = drawingOptions; /* lId = the layer index */

myDynamicLayer.setLayerDrawingOptions(options);

myDynamicLayer.setVisibleLayers(getVisibleLayers());

function getVisibleLayers() {

visiblePoints = [];

/* this function finds all the layers that are checked in the layer list and returns an array of layer indexes */

return visiblePoints;

}

Here are the values of the "options" when using the .setLayerDrawingOptions

Re: Legend Status 404 when chaging Labels on DynamicMapServiceLayer in 3.x

Noah-Sager — Tue, 20 Aug 2019 20:54:42 GMT

Are you still facing a problem with this? If so, could you share a sample app that reproduces the issue?

topic Legend Status 404 when chaging Labels on DynamicMapServiceLayer in 3.x in ArcGIS JavaScript Maps SDK Questions

Legend Status 404 when chaging Labels on DynamicMapServiceLayer in 3.x

Re: Legend Status 404 when chaging Labels on DynamicMapServiceLayer in 3.x