Okay figured this out. no way to do it directly with a ArcGISDynamicMapServiceLayer, so you need to create a temporary FeatureLayer and get the extent of it after applying the same definition expression that was applied to the ArcGISDynamicMapServiceLayer. Sorry about the formatting. When you cut and paste it strips the tabs.
function WDsetDefinitionExpressionDone(results) {
if (results.error) {
alert("Error occured getting WD trade area. "+results.error.message);
console.log("results.error",results.error);
} else {
try {
// Hide layer while we calc renderer and re-display
wdLayer.hide();
// Zoom to the layers objects
var filterDefinition = wdLayer.layerDefinitions[1];
var tempLayer = new esri.layers.FeatureLayer(
"https://mktserv5.goodyear.com:6443/arcgis/rest/services/MarketAnalysis/MarketAnalysis_WD_TradeAreas/...",
{
id: "Temp Feature Layer"
,outFields: ["*"]
}
);
var queryObject = new query();
queryObject.where = filterDefinition;
tempLayer.queryExtent(queryObject,function(response) {
// queryExtent worked.
var extent = response.extent;
if (extent) {
extent.expand(2.0);
map.setExtent(extent).then(function (response) {
// Color code the layer
var promise = smartMapping.createClassedColorRenderer({
layer: tempLayer
,field: "MARKETANALYSIS.WD_SUBGEO_SALES.WD_NET_PURCHASES_UNITS"
,showOthers: true
,basemap: map.getBasemap()
,classificationMethod: "natural-breaks"
,numClasses: 6
}).then(function (response) {
// Color coding completed now display it
var layerDrawingOptions = [];
var layerDrawingOption1 = new esri.layers.LayerDrawingOptions();
layerDrawingOption1.renderer = response.renderer;
layerDrawingOptions[1] = layerDrawingOption1;
wdLayer.setLayerDrawingOptions(layerDrawingOptions,true);
// Have to toggle layer on and off to make sure colors always display.
wdLayer.hide();
wdLayer.show();
},function (error) {
console.log("WD Coloring Error",error);
alert("WD Coloring Error: "+error);
});
});
} else {
console.log("Error getting extent of trade area from tempLayer",tempLayer);
alert("Error getting extent of trade area");
}
}, function(error){
// Error querying extent
console.log("tempLayer.queryExtent error",error);
alert("tempLayer.queryExtent error");
});
// // Setup fuction to run after filter is applied
// dojo.on.once(tempLayer, "update-end", zoomTempLayer);
// // Apply the filter
// tempLayer.setDefinitionExpression(filterDefinition);
} catch ($err) {
console.log("Error color coding WD Trade Area", $err);
alert("Error color coding WD Trade Area: $err");
}
}
}
// wdLayer.setDefinitionExpression("WKUNNR='" + wkunnr + "'")
var definitions = [];
definitions[1] = "WKUNNR='" + wkunnr + "'";
wdLayer.setLayerDefinitions(definitions);
dojo.on.once(wdLayer, "update-end", WDsetDefinitionExpressionDone);
// "update-end" won't happen unless layer is displayed.
map.addLayer(wdLayer);
