Latest Contributions by JenniferNery

The query operations are on the FeatureLayer.featureTable property. ArcGISFeatureTable, you can use the Sublayer's subtype code as additional filter in your where clause or use SubtypeSubtable. Whether you're getting SubtypeFeatureLayer from web map or table that supports subtype, you can try the following code. Notice that for "Service Station" subtype (code: 21) on a Pipeline Device there's only 1 feature of this subtype out of 31411 features. var credential = await AccessTokenCredential.CreateAsync(new Uri("https://sampleserver7.arcgisonline.com/portal/sharing/rest"), "viewer01", "I68VGU^nMurF"); AuthenticationManager.Current.AddCredential(credential); var geodatabase = new ServiceGeodatabase(new Uri("https://sampleserver7.arcgisonline.com/server/rest/services/UtilityNetwork/NapervilleGasV6/FeatureServer")); await geodatabase.LoadAsync(); var table = geodatabase.GetTable(0); var layer = new SubtypeFeatureLayer(table); await layer.LoadAsync(); var sublayer = layer.SubtypeSublayers.LastOrDefault(); ArgumentNullException.ThrowIfNull(sublayer); var query = new QueryParameters(); query.WhereClause = $"{table.SubtypeField} = {sublayer.Subtype.Code}"; ArgumentNullException.ThrowIfNull(layer.FeatureTable); var features = await layer.FeatureTable.QueryFeaturesAsync(query); var subtypeTable = new SubtypeSubtable(sublayer.Subtype); table.SubtypeSubtables.Add(subtypeTable); var subtypeFeatures = await subtypeTable.QueryFeaturesAsync(new QueryParameters() { WhereClause = "1=1" }); var count = await layer.FeatureTable.QueryFeatureCountAsync(new QueryParameters() { WhereClause = "1=1" });   Hm, there is no back-reference to the parent layer from SubtypeSublayer though. Can you describe your workflow, how you have access to the sublayer only but not have access to the layer? ... View more

Side note if you're on 11.1, there is a config file you can change to see this advanced option UI see step 4 here: Offline Utility Networks in ArcGIS Maps SDKs for Native Apps: Part 2 Offline Utility Networks in ArcGIS Native SDKs: Part 2 Update the config.js file to enable the utility network offline options on your ArcGIS Enterprise Portal. Find the Home App config.js file in your Portal installation directory. This can typically be found at the following location: C:\Program Files\ArcGIS\Portal\framework\webapps\arcgis#home\js\arcgisonline. Using a standard text editor, find the line that reads utilNetworkOfflineOptionsEnabledand change its value from false to true. Restart Portal for ArcGIS Enterprise. ... View more

I'm glad to have met you finally. Thank you for being an MVP! You've helped fellow developers and given us feedback to improve our API. I can't remember all now but the definition expression affecting `GetFeaturesForElementsAsync` is from you. Good to know it's working for you now. Jennifer ... View more

Hi Pierre, I have not seen sluggish query when zooming in/out but I've seen the expected lock errors when editing the same version simultaneously from different apps. How are you creating the ServiceGeodatabase? If you're opening from a web map, there is a load setting that you can set to persistent if you wish to lock the version for editing. It is transient by default. If you've created from URL, be sure all layers and tables of the map come from the same service geodatabase. Use the service geodatabase to apply the edits (instead of table apply edits). More information about session management here. When starting from web map   var map = new Map(new Uri(WebmapItemUrl)); map.LoadSettings = new LoadSettings() { FeatureServiceSessionType = FeatureServiceSessionType.Persistent };   When starting from feature service URL   var sgdb = await ServiceGeodatabase.CreateAsync(featureServiceUrl, FeatureServiceSessionType.Persistent); // specify session mode   Be sure to call close at the end when done with working on the branch version to release the read/write locks.    var parameters = new ServiceVersionParameters() { Name = $"VALID_VERSION_{digits}", Description = versionDescription, Access = VersionAccess.Private }; var serviceVersionInfo = await sgdb.CreateVersionAsync(parameters); // create version await sgdb.SwitchVersionAsync(serviceVersionInfo.Name); // switch var layer = sgdb.GetTable(serviceLayerId); // all layers/tables await sgdb.CloseAsync(); // when done     Opening the same version in ArcGIS Pro or Map Viewer will attempt to acquire read and write locks as well. On the server, there's purge lock and delete version that will allow you to cleanup versions that should be released and deleted.  ... View more

Hi Joe, The ExportDeltaAsync is based on the last sync time on the geodatabase. I just tested the following code, if there's a syncGeodatabase happened in between, no delta is created. Code snippet against sample server is shared below. HasEdits only reset after edits are applied/sync'd or undone/rolled back. Edits in a mobile geodatabase can be wrapped in explicit transaction by gdb.Begin/Commit/RollbackTransaction().  If you're uploading client delta a different way, the API will not  have information about the last acknowledged update to compare with the edit and gdb tracking fields. Geodatabase.hasLocalEdits(), ArcGISFeatureTable.hasLocalEdits() and ArcGISFeatureTable.getLocalEditsAsync() are all based on this time. There's a GeodatabaseFeatureTable.getHasLocalEditsSince() with DateTimeOffset parameter that you could use but it only returns boolean. Is there something in the current sync workflow that can be improved to support your custom sync processes?   private const string FeatureServiceUrl = "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Sync/SaveTheBaySync/FeatureServer"; private async Task TestExportDeltaAsync(bool syncBeforeExport = false) { try { var task = await GeodatabaseSyncTask.CreateAsync(new Uri(FeatureServiceUrl)); var areaOfInterest = task.ServiceInfo?.FullExtent; ArgumentNullException.ThrowIfNull(areaOfInterest); var parameters = await task.CreateDefaultGenerateGeodatabaseParametersAsync(areaOfInterest); var pathToGeodatabase = $@"C:\dev\gdb\{Guid.NewGuid()}.geodatabase"; Debug.WriteLine(pathToGeodatabase); var job = task.GenerateGeodatabase(parameters, pathToGeodatabase); var gdb = await job.GetResultAsync(); // introduce an edit areaOfInterest = gdb.GenerateGeodatabaseGeometry?.Extent; ArgumentNullException.ThrowIfNull(areaOfInterest); if (gdb.GetGeodatabaseFeatureTable(0) is GeodatabaseFeatureTable table) { await table.LoadAsync(); if (table.GeometryType == GeometryType.Point && table.FeatureTypes.Count > 0 && !string.IsNullOrEmpty(table.LayerInfo?.DisplayFieldName)) { var random = new Random(); var index = random.Next(0, table.FeatureTypes.Count - 1); var featureType = table.FeatureTypes[index]; double x = areaOfInterest.XMin + random.NextDouble() * areaOfInterest.Width; double y = areaOfInterest.YMin + random.NextDouble() * areaOfInterest.Height; var point = new MapPoint(x, y, areaOfInterest.SpatialReference); var feature = table.CreateFeature(featureType, point); feature.SetAttributeValue(table.LayerInfo.DisplayFieldName, $"Added on {DateTimeOffset.UtcNow}"); await table.AddFeatureAsync(feature); } } if (syncBeforeExport) { var syncParameters = await task.CreateDefaultSyncGeodatabaseParametersAsync(gdb); var syncJob = task.SyncGeodatabase(syncParameters, gdb); await syncJob.GetResultAsync(); } var deltaPath = $@"{gdb.Path.Replace(".geodatabase", "")}-delta.geodatabase"; var hasDeltaExported = await GeodatabaseSyncTask.ExportDeltaAsync(gdb, deltaPath); Debug.WriteLine($"Exported? {hasDeltaExported}"); } catch (Exception ex) { Console.WriteLine(ex.Message); } } private async void OnExportDelta(object sender, RoutedEventArgs e) { await TestExportDeltaAsync(true); await TestExportDeltaAsync(false); } Thanks. Jennifer ... View more

No problem. The NumberOfFeatures would be a cumulative value of the features retrieved in the table so far. So if you have this table rendered as a layer on a map, a query with view extent would have already run to fetch features. Or if you had previous queries made with different fips value. There is a QueryFeatureCountAsync method if you only want the count for features from a specific query. But if you will be working on the features returned from QueryFeaturesAsync then you can use features.Count() instead where features is the return value of the awaited query task. ... View more

I do not see anything wrong with your code that could've led to this error. Just a suggestion (but likely not relevant to the error you're seeing) since you are awaiting the result of syncJob.GetResultAsync() already in a try-catch. There is no need to call syncJob.Start() or handle success/fail in JobChanged. Based on the API name, I think you are using an older version of ArcGIS Maps SDK for .NET. One thing I would like to suggest (if you're able) is try the same request with latest 200.4. The equivalent event for JobChanged is StatusChanged. There is also a MessageAdded that could provide some insight at what stage this error happens (if it still happens).  There could be a number of things that could result to this generic server error. Are you able to inspect ArcGISWebException.Details property? According to this doc, one possibility is the replica GUID no longer exists on server. If you have access to the ArcGIS Server Logs, it may give more information on the GP Server error. You can also see if you are hitting these support issues: https://support.esri.com/en-us/knowledge-base/error-code-400-description-unable-to-complete-operation-000020342  https://support.esri.com/en-us/knowledge-base/problem-unable-to-sync-services-in-arcgis-server-000027501 Another case that I've seen in my sync testing, it's possible for sync to fail to acquire the necessary lock to apply delta changes or have synchronization conflicts that need to be resolved. ... View more

Thanks for following-up and sharing with us the root of the problem. I am curious to know how the table was created and why ServiceGeodatabase do not see this edit.   If you loaded the feature service from a webmap or called ServiceGeodatabase.getTable() to create the ServiceFeatureTable, the ServiceFeatureTable will have a ServiceGeodatabase property. You'd see ServiceGeodatabase.connectedTables include this table. Your feature should have access to the same ServiceGeodatabase. If however, you used a ServiceFeatureTable constructor, then the table will not have a ServiceGeodatabase. You can add a check to ServiceGeodatabase.hasLocalEdits() or ServiceFeatureTable.hasLocalEdits(), before calling the appropriate applyEdits. If this returns false, there are no edits to send to server. It is best to use ServiceGeodatabase, for these reasons: https://developers.arcgis.com/net/edit-features/apply-edits/ if (feature.FeatureTable is ServiceFeatureTable sft && sft.ServiceGeodatabase is ServiceGeodatabase sgdb) { if (sgdb.HasLocalEdits()) { await sgdb.ApplyEditsAsync(); } }       ... View more

Could your ApplyEdits be wrapped in a try-catch? Can you see if exception has message/details? Could the new feature be rejected by server because of geometry (has or lack of m/z-value, spatial reference, outside layer extent) or attributes (any unspecified required fields, data type mismatch, domain errors, or perhaps constraint rule violation)?   Few other things you can try:   After addFeatureAsyc, check getAddedFeaturesCountAsync to ensure new feature was added.   Before applyEdits subscribe to ArcGISHttpClientHandler events: HttpBeginRequest and HttpResponseEnd. You can check request URI on Begin to ensure an /applyEdits request was made. And read content as string on End to ensure an appropriate server response in JSON was received. This should provide objectid or globalid when successful or an error code/message. If the message is the generic unable to complete, you can check server logs for verbose message if you have access to the server. ... View more