Latest Contributions by RabinSubedi

@BlakeTerhuneThanks for your reply. I am not sure if I understood your question properly or not. I just uploaded a shapefile to arcgis for developers and got portalid from there. I didn't add any additional settings to it. Also, I don't want this code to make changes to the original data in server, I just want to make temporary change on workspace only.

Thank you very much @KenBuja, it works. One more question: once we update the attribute value, shouldn't the value in popup window update by itself? Also the value in featuretable widget (assuming we have it in this code)?

Hello Everyone! I am trying to update the existing value of "PCR_NBR" in featurelayer by looking at the sample code of ArcGIS API for JS using apply edits, but its not working. In this code I am just trying to replace the value by 20. Also is it possible to run loop to have conditional statement, for eg: if PCR_NBR is less than 50, replace it by 20, if it is more than 50, replace it by 100? Thanks in advance! <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /> <title> Update Feature Attributes | Sample | ArcGIS API for JavaScript 4.18 </title> <link rel="stylesheet" href="https://js.arcgis.com/4.18/esri/themes/light/main.css" /> <script src="https://js.arcgis.com/4.18/"></script> <style> html, body, #viewDiv { height: 100%; width: 100%; margin: 0; padding: 0; } #info { padding: 14px; border-radius: 5px; } #update { padding: 6px; } #form { background: #fff; } /* replaces esri-widget--panel */ .scroller { overflow-x: hidden; overflow-y: auto; } </style> <script> require([ "esri/Map", "esri/views/MapView", "esri/widgets/FeatureForm", "esri/layers/FeatureLayer", "esri/form/FormTemplate" ], function(Map, MapView, FeatureForm, FeatureLayer, FormTemplate) { let highlight, editFeature; var popupMajorRoads = { title: "Pavement Condition Rating(PCR): " + "{PCR_NBR}", content: [{ type: "fields", fieldInfos: [{ fieldName: "PCR_YEAR", label: "PCR Year", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "PCR_NBR", label: "Pavement Condition (PCR)", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "NLFID", label: "NLFID", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "JURISDICTI", label: "Juristiction", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "ROUTE_TYPE", label: "Route Type", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "ROUTE_NBR", label: "Route Number", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "DIRECTION_", label: "Direction", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" }, { fieldName: "LANES", label: "Number of Lanes", isEditable: true, tooltip: "", visible: true, format: null, stringFieldOption: "text-box" } ] }] }; const featureLayer = new FeatureLayer({ portalItem: { id: "8108b08e5ec643388380599f82e84b96" }, outFields: ["*"], visible: true, popupTemplate: popupMajorRoads }); const map = new Map({ basemap: "topo-vector", layers: [featureLayer] }); let view = new MapView({ map: map, container: "viewDiv", center: [-82.9988, 39.9612], zoom: 10, }); featureLayer.queryFeatures({ outFields: ["*"], returnGeometry: true }) .then(function(results) { if (results.features.length > 0) { editFeature = results.features[0]; editFeature.attributes.PCR_NBR = 20; } }); const edits = { updateFeatures: [editFeature] }; featureLayer.applyEdits(edits); }); </script> </head> <body> <div id="viewDiv"></div> <div id="info" class="esri-widget"> </div> </body> </html>

It works, Thank you very Much @BlakeTerhune @JohnGrayson

Actually, I need to do a tradeoff analysis with the data of this layer and present the resulting features in map and charts. I need to perform multiple queries and filtering according to my task requirement, which might be possible with ArcGIS JS API but I am not familiar with it, so it will take me a lot of time. I was hoping to extract the whole attribute table in the form of an object like this: attributeData = [ { "OBJECTID": 1, "NLFID": "CFRACR00125**C", "SUM_c_segm": 6.0, "SUM_w_segm": 11.0, "STREET_NAM": "FRANK RD"}, { "OBJECTID": 2, "NLFID": "CFRACR00114**C", "SUM_c_segm": 5.0, "SUM_w_segm": 6.0, "STREET_NAM": "COURTRIGHT RD"}, { "OBJECTID": 3, "NLFID": "CFRACR00602**C", "SUM_c_segm": 5.0, "SUM_w_segm": 7.0, "STREET_NAM": "TOWN ST"} ... ... ... }] After the analysis, I plan to pass the array of OBJECTID of resulting features to the query to display them in the map. Is it possible to extract all data in this way? I am sorry I couldn't make it clear earlier and I apologize for your trouble. Thank You!

Thanks @BlakeTerhune for your reply. I used layerview-create event and tried to test the result by printing NLFID value of the first feature, but it didn't work. Can you please take a look at it? Does the 'fieldsList' variable contain all the fields (let's say the whole attribute table)? Thanks much! <html> <head> <meta charset="utf-8"> <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no"> <title>High Injury Network</title> <style> html, body, #viewDiv { padding: 0; margin: 0; height: 50%; width: 100%; } </style> <link rel="stylesheet" href="https://js.arcgis.com/4.18/esri/themes/light/main.css"> <script src="https://js.arcgis.com/4.18/"></script> <script> require([ "esri/Map", "esri/views/MapView", "esri/layers/FeatureLayer", "esri/layers/GraphicsLayer", "esri/geometry/geometryEngine", "esri/Graphic" ], function ( Map, MapView, FeatureLayer, GraphicsLayer, geometryEngine, Graphic ) { var Crashes = [1,2]; var HINLayer = new FeatureLayer({ url: "https://services1.arcgis.com/wb4Og4gH5mvzQAIV/arcgis/rest/services/HIN_Columbus/FeatureServer", outFields: ["*"], visible: true }); var resultsLayer = new GraphicsLayer(); var map = new Map({ basemap: "topo-vector", layers: [HINLayer, resultsLayer] }); var view = new MapView({ container: "viewDiv", map: map, center: [-82.9, 39.99], // longitude, latitude zoom: 10 }); HINLayer.on("layerview-create", function(event){ var fieldsList= HINLayer.fields; document.getElementById("List").innerHTML = fieldsList[0].NLFID; }); var sortedList = Crashes.sort(); var sortedString = sortedList.join("','"); var whereClause = "VehCrashCo IN ('" + sortedString + "')"; var query = HINLayer.createQuery(); query.where = whereClause ; // query.outStatistics = [ sumCost]; query.returnGeometry= true; return HINLayer.queryFeatures(query).then(function(results){ resultsLayer.removeAll(); var features = results.features.map(function (graphic) { graphic.symbol = { color: "darkorange" }; return graphic; }); resultsLayer.addMany(features); }); }); </script> </head> <body> <div id="viewDiv"></div> <div id="List"></div> </body> </html>

Hello Everyone, How do we extract all fields of featurelayer as an object? I tried this but didn't worked: var fieldslist = featureLayer . fields ; document . getElementById ( "List" ). innerHTML = fieldslist [ 0 ]. NLFID ; I require this to perform computations only using some of the fields. Thank you in advance!

‎12-04-2020

@RobertScheitlin__GISP I created an app using WAB directly from ArcGIS for Developers. I didn't write a single line of code while creating it. Now I want to interact with it from JS API just like we do with a webmap or a feature layer, for example.

‎12-04-2020

I have created ArcGIS WebAppBuilder which provides a lot of functionalities. However, I want to interact with it using API for JS so that I can import data for analysis. Is there a way to do that? Thanks!

‎12-03-2020

Thanks for replying @BlakeTerhune. I am not that familiar with Query, but I will try if that works or not.

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Latest Contributions by RabinSubedi

Re: applyEdits not working

Re: applyEdits not working

applyEdits not working

Re: Extract field of featurelayer as object

Re: Extract field of featurelayer as object

Re: Extract field of featurelayer as object

Extract field of featurelayer as object

Re: Is there a way to communicate with ArcGIS Webappbuilder through ArcGIS API for Javascript?

Is there a way to communicate with ArcGIS Webappbuilder through ArcGIS API for Javascript?

Re: Loop over each features of a layer