ArcGIS Automation Error

Question

Hello, i try to create a (point)-feature in an existing Layer via ArcGIS Automation. I can create the Feature but when I call feature.Store() I get an "HRESULT: 0x80010105 (RPC_E_SERVERFAULT)" error. If I just edit an existing feature that I got from a SearchCursor it works flawlessly. My application is a WinForms .Net 4.5 programm. I get a connection to a running ArcMap Instance via IAppRot->IAppRef->IApplication->IDocument. From the IDocument I get a reference to a specific Layer where I need to add a feature. After that it is very basic stuff: IFeatureClass featureClass = ((IFeatureLayer)i_Layer).FeatureClass; IFeature newObject = featureClass.CreateFeature(); // Assign a geometry to the feature newObject.Shape = geom; newObject.Store();‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Store allways fails with the RPC_E_SERVERFAULT Exception. I also tried to create the feature via IFeatureCursor->IFeatureBuffer but then it fails with the same error on featureCursor.InsertFeature(featureBuffer);‍‍‍ Starting an Edit-Session for this operation has no effect. It just fails later when calling workspaceEdit.StopEditing(true);‍‍‍ I tried with ArcGIS 10.5 an 10.3 but the results are the same. Other automation tasks like moving the map, setting layer-visibilities or even editing existing features work perfectly. I read the introduction on ArcGIS automation in the documentation and learned about application's process space and "IObjectFactory". Do I have to use that somehow to create the new Feature? How can I do that? Or is there something else that I am doing wrong? Any idea is apreciated!! Thanks, Stefan

AmazingMapMan · Accepted Answer

Got it.

With a little help from stackoverflow I found a solution.

The problem was indeed that I have to use IObjectFactory to create the new geometry object.

IObjectFactory objFactory = m_application as IObjectFactory;
//Use reflection to get ClsID of PointClass.
Type pointClassType = typeof(PointClass);
string typeClsID = pointClassType.GUID.ToString("B");
IPoint esriProcessSpacePoint = (IPoint)objFactory.Create(typeClsID);
esriProcessSpacePoint.X = x;
esriProcessSpacePoint.Y = y;
newObject.Shape = (IGeometry)esriProcessSpacePoint;