How to change the shape of a feature?

Question

Hi, I have a simple polyline feature layer and there are some polylines on it that I want to reshape/replace with new polylines and I'm having a little trouble with it. So, this code here works fine: public async Task SetPolylineShapeAsyncViaCursor(int polylineId, ArcGISGeo.Polyline newPolyline) { FeatureLayer polylineFeatureLayer = //Get feature layer if (polylineFeatureLayer == null) return; await ArcGISTasks.QueuedTask.Run(() => { var queryFilter = new ArcGISData.QueryFilter(); queryFilter.WhereClause = String.Format("{0} = {1}", "PID", polylineId); var cursor = polylineFeatureLayer.Search(queryFilter); if (cursor.MoveNext()) { var feature = (ArcGISData.Feature)cursor.Current; feature.SetShape(newPolyline); feature.Store(); } }); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ However, I'd very much prefer to use an EditOperation since this polyline operation is part of a bigger editing process and I eventually want to pass around an EditOperation instance that all methods use and in the end ExecuteAsync is called once. For now I'd like to have it working with a local EditOperation, but it doesn't work when I try to modify the shape via EditOperation.Reshape (it only yields an "EditOperation failed" error): public async Task SetPolylineShapeAsyncViaReshape(int polylineId, ArcGISGeo.Polyline newPolyline) { FeatureLayer polylineFeatureLayer = //Get feature layer if (polylineFeatureLayer == null) return; long polylineOID = await this.GetPolylineOIDAsync(polylineId); if (polylineOID == -1) return; var polylineOperation = new EditOperation(); polylineOperation.Reshape(polylineFeatureLayer, polylineOID, newPolyline); await polylineOperation.ExecuteAsync(); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ It must be a small detail that's missing but I'd be glad if somebody could tell me what I'm doing wrong. Thanks in adavance Best Regards Christian

Anonymous User · Accepted Answer

Hi Christian, The editoperation reshape method is the equivalent to the reshape tool in the UI. Since your looking to replace the exiting geometry with a new one you can use one of the many Modify methods instead. This overload matches the variables you have. The dictionary of attributes is optional. EditOperation.Modify(ArcGIS.Desktop.Mapping.Layer, long, ArcGIS.Core.Geometry.Geometry, System.Collections.Generic.Dictionary<string, object>)‍