Latest Contributions by GarySinner

‎01-07-2016

I'm using the JavaScript API to build customized functionality into a Web AppBuilder application. One feature we're using are map popups. The configuration data includes lists of fields to show in the popups for the various map service layers, along with titles for the popups. We're currently using placeholders in the title of the popup so that we can include attribute data from the feature in the popup. Some of our data is pretty dense, so when popups are opened, they often contain many features. The user can click on the arrows in the title bar to step through the set of located features. The title region and the table of field values displayed in the popup change according to the current feature. We have had requests to include the name of the map service and the name of the sublayer within the map service where the current feature was located. At present the only apparent way to achieve this is to use the InfoTemplate and a custom function. Within the custom function we can get to the layer name and attribute values. But this seems to be a very heavy-handed way to get the layer name. Our suggestion is to have placeholders like {MAPSERVICE_NAME} and {LAYER_NAME} that could be used (at minimum) in the title, similar to how we can currently use placeholders to include attribute values for the feature in the title. This would allow developers to easily include the map service and layer names without the overhead of developing a custom function that would build the HTML for the popup content. Thanks for considering this option! Gary Sinner petroWEB

‎01-07-2016

I'm using the JavaScript API to build customized functionality into a Web AppBuilder application. One feature we're using are map popups. The configuration data includes lists of fields to show in the popups for the various map service layers, along with titles for the popups. We're currently using placeholders in the title of the popup so that we can include attribute data from the feature in the popup. Some of our data is pretty dense, so when popups are opened, they often contain many features. The user can click on the arrows in the title bar to step through the set of located features. The title region and the table of field values displayed in the popup change according to the current feature. We have had requests to include the name of the map service and the name of the sublayer within the map service where the current feature was located. At present the only apparent way to achieve this is to use the InfoTemplate and a custom function. Within the custom function we can get to the layer name and attribute values. But this seems to be a very heavy-handed way to get the layer name. Our suggestion is to have placeholders like {MAPSERVICE_NAME} and {LAYER_NAME} that could be used (at minimum) in the title, similar to how we can currently use placeholders to include attribute values for the feature in the title. This would allow developers to easily include the map service and layer names without the overhead of developing a custom function that would build the HTML for the popup content. Thanks for considering this option! Gary Sinner petroWEB

‎12-07-2015

The solution to my issue was to create copies of the features found by the query, and then use the set of copied features when creating the feature layer. One of Kelly Hutchins' posts put me on the right track (thank you Kelly!). The following bold lines in the following code snippet show the changes I made to the _createResultsFeatureLayer function in the code attached to the original post. _createResultsFeatureLayer: function (selectedResultsLayerItem) { //--- Kelly Hutchins forum post with example creating feature layer with layer definition: //--- https://community.esri.com/thread/99683 // AVOID CIRCULAR REFERENCE EXCEPTION IN FeatureLayer CONSTRUCTOR BY MAKING // COPIES OF THE RESULTS, SPECIFICALLY COPIES OF THE RESULT GRAPHIC OBJECTS. // BASED ON ANOTHER POST FROM KELLY WITH WORKAROUND FOR A CIRCULAR // REFERENCE ISSUE WHEN PRINTING: // https://community.esri.com/message/70485#70485 // THIS APPROACH WORKS. THANK YOU KELLY! // use toJson() to create an independent COPY of each result feature/graphic. // ONLY replacing the result's set of features, leaving all other properties of the // original results object intact. // MAKING *COPIES* OF THE ORIGINAL FEATURES IS THE KEY // TO AVOIDING THE CIRCULAR REFERENCE EXCEPTION. var copyFeatures = dojo.map(selectedResultsLayerItem.results.features, function (feature) { return new esri.Graphic(feature.toJson()); }); selectedResultsLayerItem.results.features = copyFeatures; var featureCollection = { layerDefinition: selectedResultsLayerItem.layerDefinition, featureSet: selectedResultsLayerItem.results }; var featureLayer = new FeatureLayer(featureCollection, { mode: FeatureLayer.MODE_ONDEMAND, id: featureLayerId });

‎09-23-2015

I’ve run into an exception trying to create a FeatureLayer with the results of a spatial query. The exception stack trace looks like this: TypeError: Circular reference in value argument not supported at b.toJson at _initLayer at Anonymous function at _initFeatureLayer at constructor at h.around.advice at h at Anonymous function at _createResultsFeatureLayer (my function) I’ve found several posts that describe circular reference issues with serializing graphics to JSON. Unfortunately none of them seem to fit my predicament. When I look at the FeatureLayer object, all of the graphics contain a reference for the _graphicsLayer, which includes the same collection of graphics with each graphic containing a reference to the _graphicsLayer, etc. Seems infinitely recursive/circular. "The wheels on the bus go ‘round and ‘round…" I am not sure if this is the issue or not – it could be completely unrelated. In any case, I’m not sure how to break the cycle or resolve the exception. Hopefully someone out there might have an answer, or at least some suggestions for things to try. The attached zip contains a custom widget “CircularReference” that can be used to reproduce the problem. To include the widget: Drop the CircularReference folder from the zip into the widgets folder Add the CircularReference to the app’s config.json file, editing index as appropriate. "widgetPool": { "widgets": [ { "uri": "widgets/CircularReference/Widget", "version": "1.3", "id": "widgets/CircularReference/Widget_35", "name": "CircularReference", "label": "Circular Reference", "index": 2 }, Edit the searchLayers element in the CircularReference/config.json file to reference at least two dynamic map service layers in your map. These could be from more than one map service, or multiple layers in a single map service. The values for each layer should be self-explanatory. Be sure to include the layer index at the end of the url. In my test app I was using a sample Esri map service that has four layers in it. If you want to use the config.json file as-is, be sure your webmap includes this map service. "searchLayers": [ { "mapServiceName": "USA", "name": "Cities", "url": "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/0" }, { "mapServiceName": "USA", "name": "Highways", "url": "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/1" }, { "mapServiceName": "USA", "name": "States", "url": "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/2" }, { "mapServiceName": "USA", "name": "Counties", "url": "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/3" } ], After getting everything configured, the workflow to generate the exception is as follows: Zoom to an area of the map that has features from multiple layers in the CircularReference’s config.json searchLayers collection. Click on the Circular Reference button. Click on the search within map extents button. This should kick off the search. The runSpatialQueries() function loops over the specified layers and kicks off a search on each layer. The search results wind up in the processResults() function that fills out a simple tree control. Clicking on one of the results in the tree fires the selectedResultSet() handler, which calls _createResultsFeatureLayer. The results get loaded into a tab in the AttributeTable. Click on a different result item in the tree. The FeatureLayer with the results from the previously selected item is removed from the map. NOTE: In our full application we only show one set of results on the map and in the attribute table at a time. The same process as above executes for the newly selected results item, and the results are successfully displayed in the AttributeTable. Click on the originally selected results item in the tree and the same process executes again. This time the circular reference exception gets thrown in the _createResultsFeatureLayer() function when calling the FeatureLayer constructor. Any feedback, thoughts, or suggestions would be greatly appreciated. Thank you in advance! Gary

‎04-07-2014

Finally figured out my mistake - I was using Internet Explorer 11. Why, why, why?! :mad: Switched to Chrome, followed the exact same workflow, and everything worked great! 🙂

‎04-01-2014

After continuing to scour the web for clues, I found this gem from Bernie: http://blogs.esri.com/esri/arcgis/2012/10/04/url-parameters-in-pop-ups/ It looks like it should do exactly what I'm after. The world is good. I went through the steps, testing with some public Esri maps and layers. Unfortunately the link that I define in the custom popup doesn't appear to be working. I haven't been able to figure out what I'm doing wrong. The attached doc describes the steps that I took to try to verify that the approach would work for me. I'd appreciate any insights into what I'm doing wrong, any limitations to the approach or known issues that might be the problem, etc. Thanks! Gary

‎04-01-2014

Is it possible to configure a popup in a webmap to include a link that consists of a URL with a "replaceable" parameter that comes from an attribute value for the selected feature? For example, given point features with an attribute named "UNIQUEID", how could I define a popup with a link that displays in the popup as "Details" with the underlying URL of something like: http://www.mydomain.com/Reports/FacilityDetail.asp?facid=UNIQUEID When the user clicks on the "Details" link in the popup, the "UNIQUEID" parameter in the URL would be replaced with the value of the selected feature's UNIQUEID attribute, e.g., http://www.mydomain.com/Reports/FacilityDetail.asp?facid=12516 And then the updated URL would be opened in a new page in the browser. I'm an ArcGIS Online neophyte, and haven't been able to find any documentation that leads me to think this is possible "out-of-the-box". If it's not possible out-of-the-box, can it be done in JavaScript and then the template get shared within the organization? Do you know of any examples for similar functionality? Thanks! Gary

‎02-08-2013

One of our mutual clients (Chevron) ran into a similar problem in our .NET application. If we try to use the .NET API and the Oracle.DataAccess assembly for querying an Oracle database with an ST_GEOMETRY column, we’re getting a “custom type mapping for typeName=’ST_GEOMETRY’ is not specified or is invalid” exception. ESRI Tech Support directed us to go to this suggestion and promote it so that maybe their development group will eventually work on creating a library to support direct access through the .NET API. Some code snippets showing what we’re trying to do: private OracleConnection _dbConn = null; _dbConn = new OracleConnection(connectionString); _dbConn.Open(); DataSet ds = new DataSet(); Fill(ds, true); public void Fill(DataSet ds, bool bFillSchema) { try { OracleDataAdapter da = new OracleDataAdapter(_sSql, _dbConn); if (bFillSchema) da.MissingSchemaAction = MissingSchemaAction.AddWithKey; da.Fill(ds); if (bFillSchema) da.FillSchema(ds, SchemaType.Mapped); } catch (Exception ex) // exception on da.Fill(ds) is caught here You can reference support incident 1103667 for more details and contact information - we'd be happy to help in any way that we can to resolve this issue. Thanks, Gary Sinner petroWEB

‎02-08-2013

We had a similar problem in our .NET application built using ArcGIS Engine. We have a couple of features that normally use .NET to query the backend database. When one of our clients updated their Oracle ArcSDE databases recently, they started to use ESRI's ST_GEOMETRY user defined type. Queries against tables with an ST_GEOMETRY column started failing. Lots of searching, and opened a support incident with ESRI. The result of that incident were: [INDENT]Thank you very much for your time discussing the issue with us. Here I would like to summarize our conversation over phone: - We understand the importance of this issue, however unfortunately so far we dont' have any existing Esri libraries for querying oracle st_geometry in .NET IDE. - Using ArcObjects, or st_AsText() could be a workaround depending on your workflow. - As mentioned, we have customer posted the idea regarding this issue already, details please refer to the link below. You can always vote on the idea to promote it. http://ideas.arcgis.com/ideaView?id=087E00000004LykIAE [/INDENT] If your searching has landed you on this thread, please go to the suggestion at the above link at vote for it! Maybe ESRI will work on a solution... In the meantime (could be a verrryyy long time), we were able to work around the problem in our system by changing one part of our system to use ArcObjects to do the query instead of .NET and Oracle.DataAccess. In the other part of our system that has to use .NET and Oracle.DataAccess, we changed the "select *" query to first issue a query to the table to get the list of columns in the table, and then rebuild the query with an explicit list of columns, excluding the column with the ST_GEOMETRY data type. Kind of a pain, but it worked. Gary Sinner

‎03-23-2012

Hi Jennifer, A follow up question on this topic. Looks like 2.3 added support for scale dependency for dynamic feature layers. But it looks like the map�??s minimum resolution still only looks at the minimum resolution of the tiled layers on the map (http://help.arcgis.com/en/webapi/silverlight/apiref/esri.arcgis.client~esri.arcgis.client.map~minimumresolution.html). So if the map contains both tiled layers (with a min res value) and dynamic layers (with max scale set), you�??ll only be able to zoom in as far as the minimum resolution of the tiled layer. Is that correct? We�??ve got a client with some facilities data that he wants to be able to zoom WAY, WAY in �?? beyond the minimum resolution of the base map tile layer. He�??s set a max scale on the facilities layer, but can�??t zoom in far enough to get the detail he wants to see. Appears that the tile layer is limiting how far in he can zoom. Since the map doesn�??t appear to look at the min/max scale values for the feature layers when setting the min/max resolution for the map, I figure that I have to walk through the layers and LayerInfos to find the max scale from the layers. Then I�??m in the same situation as Avner�??s original post �?? how can I reliably convert the max scale for a feature layer into a resolution value that I could use for setting the map�??s MinimumResolution? Or do you have any other suggestions for setting the map�??s MinimumResolution to allow zooming in down to a feature layer�??s max scale? Thanks, Gary

‎08-24-2011

I'm working on an application that incorporates a lot of the "Synchronized MapControl and PageLayoutControl application" sample (found here: http://help.arcgis.com/en/sdk/10.0/arcobjects_net/conceptualhelp/index.html#/d/0001000001w4000000.htm ). This is the description of the sample: [INDENT]This sample demonstrates synchronization of a MapControl and a PageLayoutControl in one application. This means that, as in ArcMap, you can switch between the two views and maintain the scale and extent[/INDENT] The issue that I'm having is that the map in the page layout does NOT maintain both the scale AND extent (not sure how it really can do both!). Take a map that you originally create in ArcMap with a roughly square map frame on the page layout. Load the map into the application built by the sample, and maximize the application window. If you've got a monitor like mine, the map will now be wider than it is tall. Switch the Layout tab and much of the map that you were viewing on the Map tab isn't visible on the Layout tab. Our users are most concerned about maintaining the extent, i.e., if you can see it on the map in the map control, you should be able to see it on the map on the page control. It doesn't matter if the extents of the map on the page are larger in order to accomodate different aspect ratios of the map control vs. the layout's map frame. For example, if the application on my monitor has a more horizontal aspect ratio but the page layout's map frame is square, I would expect to get "extra" areas at the top and bottom of the map in the page because the page layout would want to fit the maximum dimension of the map view (width) into the layout frame (square), and fill the height as necessary to fill the square frame. Take the same map into ArcMap and toggle between map and layout views, and you'll see that ArcMap is honoring the extents - that's what we're after too. I can't seem to find the right way to set the extents of the map frame on the page to get the desired results as described above. I tried this: [INDENT] IGraphicsContainer graphicsContainer = m_pageLayoutControl.PageLayout as IGraphicsContainer; if ( graphicsContainer != null ) { graphicsContainer.Reset(); IElement element = null; while ( ( element = graphicsContainer.Next() ) != null ) { if ( element is IMapFrame ) { ESRI.ArcGIS.Carto.IMap map = ( element as IMapFrame ).Map; IActiveView mapview = map as IActiveView; mapview.Extent = m_mapControl.Extent; mapview.Refresh(); break; } } } [/INDENT] It doesn't work because the extents reported by the m_mapControl and the mapview (from the IMapFrame) are the same. Yet visually the maps on the map and in the layout control's map frame have very different extents (but appear to have the same scale). I'd greatly appreciate any suggestions for how to get the map EXTENTS to be honored... Thank you in advance! Gary

‎05-10-2011

We have a web application built using the ArcGIS API for Silverlight. In it we use QueryTask to perform spatial queries against map service layers. We also have a desktop application built using ArcGIS Engine Runtime. In it we make spatial queries against featureclasses in geodatabases using the IFeatureClass.Search method and the SpatialFeatureClass. How can we make similar spatial queries against map service layers in our ArcGIS Engine Runtime desktop application? We need to return ???full??? objects ??? meaning that we get back *REAL* attributes *AND* geometry. If we add the same map services that work in our web app to our desktop app, the map service layers display correctly on the map. But they don???t support IFeatureClass, so we can???t use IFeatureClass.Search. They are MapServerQuerySublayer objects, but neither the IFind nor the IIdentify interfaces can return the actual geometry. I???m currently using IIdentify2 to return attributes, and the attributes include a ???Shape??? property, but the value for the Shape property is just a string containing the type of geometry (???point???, ???polyline???, etc.). So to rephrase my question: Is there *ANY* way in an ArcGIS Engine based desktop application to query a map service layer and get back the actual geometry (points and spatial reference) like you can do in the Silverlight API with QueryTask? And a follow-up question, is there *ANY* way to get the attributes back as the proper data types (even the numeric data comes back from Identify() as strings)? One more: is there any way to make the select tool in ArcMap be able to select features from a map service? Not identify - need to do a real *SELECT* action.

‎04-25-2011

I'm trying to change the visibility of one of the sublayers in a dynamic map service layer. This is basically set up as a way to override the DefaultVisibility for specific sublayers. The sublayer in question is a couple of layers down in the hierarchy. Even though it's not in the agsDynamicMapServiceLayer.VisibleLayers list, it's still being drawn. Using the 2.1.0.446 build of the ArcGIS Silverlight API Dynamic Map Service hierarchy looks something like this: Layer Name/Hierarchy [0] A [1] A.1 [2] A.2 [3] A.3 [4] B [5] B.1 [6] B.1.a [7] B.2 [8] B.2.a Want to make sublayer ???B.1.a??? hidden in initial display (DefaultVisibility is true for that layer) All of the following work is done in the Initialized event handler for the ArcGISDynamicMapServiceLayer. agsDynamicMapServiceLayer.VisibleLayers is null initially Build list of id???s that want to make visible: List<int> visibleLayers: 0,1,2,3,4,7,8 Set into VisibleLayers property: agsDynamicMapServiceLayer.VisibleLayers = visibleLayers.ToArray(); The "B.1.a" layer (6) that is *NOT* present in the agsDynamicMapServiceLayer.VisibleLayers list is still being displayed!? QUESTION NUMBER 1: ANY IDEA WHY IT'S STILL BEING DRAWN ON THE MAP??? So I tried using SetVisibility() to turn on/off each layer as appropriate: // now turn on only those that we're interested in seeing... for ( int i = 0; i < agsDynamicMapServiceLayer.Layers.Count(); i++ ) { if ( visibleLayers.Contains( agsDynamicMapServiceLayer.Layers.ID ) ) agsDynamicMapServiceLayer.SetLayerVisibility( agsDynamicMapServiceLayer.Layers.ID, true ); else agsDynamicMapServiceLayer.SetLayerVisibility( agsDynamicMapServiceLayer.Layers.ID, false ); } The map layers are now properly displayed - layer "B.1.a" is NOT rendered on the map. HOWEVER, if I look at the VisibleLayers, it only includes the feature layers. None of the group layers are included. This breaks some of our other code downstream that looks at the VisibleLayers property to determine if a specific sublayer is actually visible or not. QUESTION NUMBER 2: ANY IDEA WHY THE GROUP LAYERS ARE BEING OMITTED??? QUESTION NUMBER 3: ANY SUGGESTIONS FOR MORE THINGS TO TRY??? Thanks, Gary

‎08-23-2010

When you click on the Add Data button on the AxToolbar in our app, you get the ArcObjects' Add Data dialog box. If you click on the Geodatabases option on the left, the Create Database Connection button is disabled. Anyone have any ideas why it'd be disabled? Thanks! Gary

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Date Last Visited	‎11-11-2020 02:23 AM

My Ideas

Latest Contributions by GarySinner

Support placeholders for map service and layer names in InfoTemplate and PopupTemplate

Support placeholders for map service and layer names in InfoTemplate and PopupTemplate

Re: WAB FeatureLayer constructor throwing TypeError: Circular reference in value argument not supported

WAB FeatureLayer constructor throwing TypeError: Circular reference in value argument not supported

Re: Popup link with URL that includes parameter from attribute value?

Re: Popup link with URL that includes parameter from attribute value?

Popup link with URL that includes parameter from attribute value?

Re: CustomMapping class for querying oracle st_geometry functions using C#

Re: How to use st_geometry functions inside query statements in ADO.net?

Re: WPF, Scale and Resolution

Problem setting map extents for map frame in page layout control

How can you make a spatial query against a MAP SERVICE layer in ArcGIS Engine app?

problem setting visibility of nested layer

Disabled Create Database Connection button in Add Data dialog box

Support placeholders for map service and layer nam...

Support placeholders for map service and layer nam...