It seems that the DxfDocument has no longer attribute Entities. Is there really to way to acess all entities? This seems rather odd to me. Especially when it is shown in code example.
Read this, additionally if you are using the latest code you can get the list from "DxfDocument.Entities.All" it will return the list of entities contained in the active layout "DxfDocument.Entities.ActiveLayout".
It seems that the DxfDocument has no longer attribute Entities. Is there really to way to acess all entities? This seems rather odd to me. Especially when it is shown in code example.