Latest Contributions by Wolf

Hi Than Aung‌,  I can't speak to your tools and I think that Amir is answering your questions to that regard, but as far as calling a geoprocessing tool from .Net I noticed that IGPResult doesn't return all warnings/error strings in all cases and in some cases i get a wrong success status.  So I call ExecuteToolAsync using the callback parameter to examine 'OnValidate' message types in the call back.  In some cases, like for example in the sample below errors are only coming back via the 'OnValidate' callback. protected override async void OnClick() { // get the testpoint layer try { var layerName = "TestPoints"; var field = "Description"; var expression = "'Test'"; var featureLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().Where(fl => fl.Name.Contains(layerName)).FirstOrDefault(); var msg = await CalcFieldGeoprocessingAsync(featureLayer, field, expression); MessageBox.Show($@"Calc field returned: {msg}"); } catch (Exception ex) { MessageBox.Show($@"{ex}"); } } // cancellation token private System.Threading.CancellationTokenSource _cts = new System.Threading.CancellationTokenSource(); public async Task<string> CalcFieldGeoprocessingAsync(FeatureLayer selectionLayer, string field, string expression) { return await QueuedTask.Run<string>(async () => { var stringBuilder = new StringBuilder(); using (FeatureClass featureClass = selectionLayer.GetFeatureClass()) { string in_table = featureClass.GetPath().ToString(); IReadOnlyList<string> calculateParameters = Geoprocessing.MakeValueArray(new object[] { in_table, field, expression }); var stopWatch = new Stopwatch(); stopWatch.Start(); IGPResult result = await Geoprocessing.ExecuteToolAsync("management.CalculateField", calculateParameters, null, _cts.Token, (eventName, o) => { System.Diagnostics.Debug.WriteLine($@"GP event: {eventName}"); switch (eventName) { case "OnValidate": // stop execute if any warnings if ((o as IGPMessage[]).Any(it => it.Type == GPMessageType.Warning)) _cts.Cancel(); foreach (var str in (o as IGPMessage[])) { stringBuilder.Append($@"Warning: {str}"); } break; case "OnProgressMessage": string msg = $@"{eventName}: {(string)o}"; break; case "OnProgressPos": string msg2 = $@"{eventName}: {(int)o} %"; stringBuilder.Append(msg2); break; } }); stopWatch.Stop(); // Report the results if (result.IsFailed) { stringBuilder.Append("GP Tool failed: "); foreach (IGPMessage message in result.Messages) { stringBuilder.AppendLine(message.ToString()); } } else { stringBuilder.Append("Updating rows without an edit operation took: "); stringBuilder.Append($@"{Math.Round(stopWatch.ElapsedMilliseconds / 1000.0, 0)} seconds"); } return stringBuilder.ToString(); } }); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Hi Thomas Becker‌,  I used the following code snippet to change the data source for my feature layers: private async void ChangeDatasource(FeatureLayer featLayer, string newGDB) { await QueuedTask.Run(() => { // provide a replacement data connection object CIMDataConnection updatedDataConnection = new CIMStandardDataConnection() { WorkspaceConnectionString = $"DATABASE={newGDB}", WorkspaceFactory = WorkspaceFactory.FileGDB, DatasetType = esriDatasetType.esriDTFeatureClass, Dataset = featLayer.Name }; // the updated Data connection should look like this: // CustomWorkspaceFactoryCLSID: null // Dataset: "TestMultiPoints" // DatasetType: esriDTFeatureClass // WorkspaceConnectionString: "DATABASE=C:\\Data\\FeatureTest\\FeatureTest.gdb" // WorkspaceFactory: FileGDB // overwrite the data connection featLayer.SetDataConnection(updatedDataConnection); }); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ In my tests (using 2.6) I didn't need to refresh the map view, the content of my replacement data was immediately displayed.   ... View more