Latest Contributions by Wolf

This has been a known issue we first noticed in 2019 with the release of Visual Studio 2019, and it can occur randomly even throughout a debug session.  The ArcGIS Pro development team looked into it and deemed it benign.  The recommendation to work around this issue is the following: What you are seeing is one of "Managed Debugging Assistants" (MDA) and can be disabled by Debug->Exceptions ... > Expand the MDA node and uncheck the box against contextswitchdeadlock . Note: I usually turn off all 'MDA's as they are not relevant for debugging my add-ins.   ... View more

The rotation information is stored in the layer's CIM definition.  You can use the CIM Viewer tool to interrogate the layer's CIM defintion's content:  Esri/arcgis-pro-sdk-cim-viewer (github.com)  Once you activate the tool and make the desired symbology settings manually, you can then 'show the CIM' to view the layer's CIM definition.  It will look like this: Once you have the CIM definition you can the write the code to get/set the CIM definition programmatically.  In your case you are interested in the CIMRenderer.  I supplied the code to read the CIM, but you can make changes to the renderer as well.  There are some snippets and community samples on how to set a renderer.  Once you make programmatic changes to the CIM you always have to use the corresponding 'Set' function to submit the changed CIM to the layer (i.e. GetRenderer() / SetRenderer(...)).  Here is my sample [Button / OnClick] code to read the renderer's rotation settings: protected override void OnClick() { var pointLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().Where(fl => fl.Name.Contains("TestPoint")).FirstOrDefault(); if (pointLayer == null) return; QueuedTask.Run(() => { //Get simple renderer from the feature layer CIMSimpleRenderer currentRenderer = pointLayer.GetRenderer() as CIMSimpleRenderer; if (currentRenderer == null) return; // check if ArrayOfCIMVisualVariable exists if (currentRenderer.VisualVariables != null) { // check if CIMRotationVisualVariable exists foreach (var visualVar in currentRenderer.VisualVariables) { if (visualVar is CIMRotationVisualVariable cimRotationVisualVariable) { // rotation field info is under VisualVariableInfoZ var varInfoZ = cimRotationVisualVariable.VisualVariableInfoZ; // ValueExpressionInfo holds CIMExpressionInfo var varExpInfo = varInfoZ.ValueExpressionInfo; MessageBox.Show($@"{varExpInfo.Expression} rotation type: {cimRotationVisualVariable.RotationTypeZ}"); } } } }); } Using the code above on my sample data results in this:   ... View more

Hi Brian,  You have to make any updates to the UI from the UI thread.   There is a sample utility function in this community sample called RunOnUIThread that allows you to switch threads and run an Action on the UI thread.  arcgis-pro-sdk-community-samples/BookmarkDockpaneViewModel.cs at 44183d0d5a9bc5da6fb8b9229211cc707dd2b874 · Esri/arcgis-pro-sdk-community-samples (github.com) Depending on your use case you can also use the Dispatcher class as shown here: arcgis-pro-sdk-community-samples/Module1.cs at 44183d0d5a9bc5da6fb8b9229211cc707dd2b874 · Esri/arcgis-pro-sdk-community-samples (github.com) You mentioned 'Windows Form' objects which would exclude the use of synchronization patterns that are exclusive to WPF like BindingOperations.EnableCollectionSynchronization ... View more