Latest Contributions by JamesCrandall

‎07-09-2021

WABDev 1.19 Theme: Launchpad I'm looking for how WAB refers to the WidgetManager.js file when a page is initially loaded. Is there a specific .html file that refers to it like, <script src="WidgetManager.js" ></script> Thanks for any info!

‎06-23-2021

js 3.36 Attempting to implement the upload shapefile example into a new custom widget but having an issue on the first attempt (subsequent attempts using a different .zip name works as expected). Basically on the request({load:}) property it errors with "TypeError: Cannot read property of name of undefined at https://js.arcigs.com.... and just goes to the errorHandler. //use the rest generate operation to generate a feature collection from the zipped shapefile. request({ url: this.portalUrl + '/sharing/rest/content/features/generate', content: myContent, form: dom.byId('uploadForm'), handleAs: 'json', load: lang.hitch(this, function (response) { if (response.error) { console.log("response.error: ", response.error); this.errorHandler(response.error); return; } var layerName = response.featureCollection.layers[0].layerDefinition.name; dom.byId('upload-status').innerHTML = '<b>Loaded: </b>' + layerName; this.addShapefileToScratch(response.featureCollection); document.getElementById("inFile").innerHTML = ''; }), error: lang.hitch(this, this.errorHandler) }, { usePost: 'true' }); }, errorHandler: function (error) { dom.byId('upload-status').innerHTML = "<p style='color:red'>" + error.message + "</p>"; console.log("errorHandler: ", error.message) document.getElementById("inFile").innerHTML = ''; },

‎04-29-2021

oof.. did I whiff on that one. Thank you!

‎04-29-2021

WABDev 2.19 I have a custom widget that I am adding a FeatureLayer from an onClick event and trying to symbolize and add labels. From THIS example it's showing an important step to "showLabels": map = new Map("map", { extent: bbox, showLabels : true //very important that this must be set to true! }); However, I don't implement that "new Map" and just setting reference to the map source to the WAB itself. All I do is decalare map: null at the top and then access this.map throughout the .js of the widget How do I set this.map to showLabels: true?

‎03-15-2021

Thanks for the info Josh!

‎03-15-2021

Thank you for the input! Actually all of the "layers" in the webmap that the WAB/Widget uses as the source are hosted items (I think). Here's how they are created: 1. Click "Add" -- "Add From Web". 2. Paste in the service url including the layer index number. These are published to an ArcGIS Server 10.4.1 site. 3. Configure symbology, popups and labels. 4. Save each weblayer to AGO. 5. Save the webmap. Does that constitute as a hosted map image layer?

‎03-15-2021

Anyone have success implementing a stacked label solution in JS api 3.x? I'm not so sure the "suggested" duplicating layers approach will suffice. We currently have a dev WAB app & custom widget created with WAB Developer 2.19 and looking for solutions. I REALLY hoped to just do all of this in Arcade at the webmap/weblayer themselves rather than fuss around with a bunch of Javascript in the widget we're building, but the current AGO map viewer still doesn't support stacked labels. I *can* get the Arcade expression to stack them in the "TEST" output, but doesn't work in the mapviewer itself. Not sure if this just means I can simply save the webmap as the new "beta" version (which is supposed to allow stacked labels) but unsure what that means for our custom widget developed at JS api 3.x

‎02-24-2021

The solution is to clear the selection first before the refresh: this.selectionLayer.clearSelection(); this.selectionLayer.refresh();

‎02-22-2021

Edit: The weblayer in the webmap has a refresh interval =1 set and the webmap viewer does what I expect when it "refreshes". Hope that makes sense! Part of a workflow is to update a value and then refresh the layer and my expectation is that the symbol would change to the unique value of the updated value. I am setting a selectionLayer variable like so, array.map(_operLayers, lang.hitch(this, function (lyr) { if (lyr.layerObject) { if (lyr.visibility === true) { this.selectionLayer = lyr.layerObject; } } })); Then attribute edits are applied and a refresh is called, this.selectionLayer.refresh(); While the layer seemingly "refreshes" or redraws, the symbology change I am expecting does not happen. Curious if there's something simple I'm missing. Consequently, if I refresh the entire WAB/page, of course the symbology draws to what I expect. Javascript 3.x WABDev/Custom widget The source to this WAB is a saved webmap with saved weblayer items. So, my attempt/goal here is to configure items as much as possible rather that write a ton of Javascript in the UI.

‎02-19-2021

Thanks Robert, that makes sense.

‎02-19-2021

Yes that's how it is added with the layer id at the end. I'm still not quite following the examples as they are all suggesting to create a reference to a "new FeatureLayer()", set the definitionExpress and then add it to the map. But my confusion is, it's already added to the map, I'm not seeing why I would create a new instance and add it again?

‎02-19-2021

Robert -- we add the specific service layer to the webmap using the "Add data from web" option, then when it's added we save it (after setting up popups, symbology, etc). So, I believe it's a "FeatureLayer" at that point? Inspecting the lyr in dev tools says layerType: "ArcGISFeatureLayer" Edit: also, all of the examples show for a "new FeatureLayer()" but I'm misunderstanding how this applies to the FeatureLayers already in the map?

‎02-19-2021

Within a custom widget I'm developing I am accessing specific layers that are loaded into an existing webmap by way of: _operLayers = this.map.itemInfo.itemData.operationalLayers; I can then do some things like toggle visibility by setting a reference to a layerObject like this: array.map(_operLayers, lang.hitch(this, function (lyr) { if (lyr.layerObject) { if (lyr.title === "Alert 7day - Hydraulic Element Set") { lyr.layerObject.setVisibility(true); lyr.visibility = true; lyr.definitionExpression = "alertPriority = 'Low'"; } } } )) Is there any way to set a filter/definitionExpression on this layerObject? As you can see above, what I attempted has no effect. Of note: the service layers contained in the webmap are enriched with additional attributes from a Server Object Interceptor and consequently I'm unable to apply the desired definitionExpression/filter on the AGO item created from that service layer. We need a way to set a date value > CURRENT_TIMESTAMP but the service does not honor this type of WHERE clause. Thanks for any input.

‎02-08-2021

That does it!

‎02-08-2021

Throws an error: date_info_set = set(date_info_list) TypeError: unhashable type: 'dict'

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Date Last Visited	‎01-22-2025 02:28 PM

My Ideas

Latest Contributions by JamesCrandall

WidgetManager.js references

Upload Shapefile error: cannot read property of name

Re: Labeling FeatureLayer JS3.x

Labeling FeatureLayer JS3.x

Re: JS api 3.x Stacked Labels?

Re: JS api 3.x Stacked Labels?

JS api 3.x Stacked Labels?

Re: layer.refresh() problem

layer.refresh() problem

Re: Apply definitionExpression to operationalLayer?

Re: Apply definitionExpression to operationalLayer?

Re: Apply definitionExpression to operationalLayer?

Apply definitionExpression to operationalLayer?

Re: List of unique values in multiple columns

Re: List of unique values in multiple columns

Re: Proper REST query for epoch

iterate hosted (AGOL) table attributes

Re: Export to KML Widget

Re: Security model approaches

Re: Python API to update attributes on feature lay...

Experience Builder Custom Widgets

Web AppBuilder Custom Widgets