Set initial value of HORIZONTALSLIDER not working

WalterEralio — Wed, 14 Aug 2013 13:56:47 GMT

I have a feature layer with attached dijit horizontalslider

Initially the layer is not visible and I'll like to programatically enable it (I'm doing that) but with the slider set in the middle (value 0.5, i.e. Opacity= 0.5). I cannot do this.. the layer appears with the slider on the beginning but no opacity and as soon as I move it to the right it'll go from 0 to 1

Declaration:

            // FLOOD LAYER
            featureLayerFL = new esri.layers.FeatureLayer('<s:property value = "arcGisFeatureLayerUrl" />/mxds/manmapC/MapServer/12', {
                mode: esri.layers.FeatureLayer.MODE_ONDEMAND,
                outFields: ['*'],
                opacity: 1
            });
            legendLayers.push({
                layer: featureLayerFL,
                title: 'FLOOD'
            });
            featureLayerFL.hide();
            dojo.connect(featureLayerFL, 'onMouseOver', showTooltipFL);
            dojo.connect(featureLayerFL, 'onMouseOut', closeDialogFL);
   featureLayerFloodSlider = new dijit.form.HorizontalSlider();
   featureLayerFloodSlider.id = "Flood Slider";
   featureLayerFloodSlider.value=0.5;
   featureLayerFloodSlider.layerID = 12;
   featureLayerFloodSlider.minimum = 0;
   featureLayerFloodSlider.maximum = 1;
   featureLayerFloodSlider.tooltip = "Flood";
   featureLayerFloodSlider.intermediateChanges = true;
   featureLayerFloodSlider.showButtons = true;

   featureLayerFloodSlider.style = "width:100px";
   //featureLayerFloodSlider.onChange = function(){slideLayerOpacity(12,this.value)}
   featureLayerFloodSlider.onChange = function(){slideLayerOpacity(12,featureLayerFloodSlider.value)}
   featureLayerFloodSlider.handleSrc = "https://serverapi.arcgisonline.com/jsapi/arcgis/1.1/js/dojo/dijit/themes/tundra/images/preciseSliderThumb.png";

Part when I make visible and try to set value to 0.5
                   featureLayerFL.setVisibility(true);
                   featureLayerFloodSlider.value=0.5;
                   map.graphics.refresh();

Re: Set initial value of HORIZONTALSLIDER not working

JasonZou — Wed, 14 Aug 2013 14:11:15 GMT

Try this.

Change:
featureLayerFL.setVisibility(true);
featureLayerFloodSlider.value=0.5;
map.graphics.refresh();

To:
featureLayerFloodSlider.set("value", 0.5);
featureLayerFL.setOpacity(0.5);
featureLayerFL.setVisibility(true);

topic Set initial value of HORIZONTALSLIDER not working in ArcGIS JavaScript Maps SDK Questions

Set initial value of HORIZONTALSLIDER not working

Re: Set initial value of HORIZONTALSLIDER not working