How to get the FeatureType of a FeatureClass

Question

I am trying to programmatically get the FeatureType of a FeatureClass with the ArcGIS Pro SDK. More precisely I would like to find out if the FeatureClass is of type Annotation. I already tried opening the definition of type AnnotationFeatureClassDefinition. This does not work (returns null): Geodatabase.GetDefinition("myAnnotation") I can get the FeatureClassDefinition: Geodatabase.GetDefinition("myAnnotation") But how do I get the FeatureType? I am using ArcGIS.Core/ArcGIS.CoreHost in a standalone application. Does anybody know how to do this?

RalfSchmidt · Answer

Hi Rich, I just ran into this thread with a similar question. Your answer is valid for the OP's question but in my case I need to get the names of all annotation feature classes in the GDB. Here, your approach would mean that I have to hydrate each FeatureClass only to find out if it is an AnnotationFeatureClass or not. As there are no alternatives, I will go for that. However, maybe you guys can add an "IsAnnotationFeatureClass" property to the FeatureClassDefinition object, or – even better – make Geodatabase.GetDefinition("myAnnotation") and Geodatabase.GetDefinitions() work.

EvaSchuh · Answer

Thanks, Rich. I was testing with Annotation-FeatureClasses created with ArcGIS Desktop 10.5.

I now have an Annotation-Featureclass created with ArcGIS Pro and I can either get the AnnotationClassDefinition directly or cast FeatureClass into AnnotationFeatureClass.

RichRuh · Answer

If you're starting from a FeatureClass object, just try to cast it to an AnnotationFeatureClass: FeatureClasss myFeatureClass; ... if (myFeatureClass is AnnotationFeatureClass) { AnnotationFeatureClass myAnnotationFeatureClass = myFeatureClass as AnnotationFeatureClass; ... }‍‍‍‍‍‍‍ Is this what you are looking for? --Rich