| FdoClassType_Class | Represents the concrete class type Class |
| FdoClassType_FeatureClass | Represents the concrete class type FeatureClass |
| FdoClassType_NetworkClass | Represents the concrete class type NetworkClass |
| FdoClassType_NetworkLayerClass | Represents the concrete class type NetworkLayerClass |
| FdoClassType_NetworkNodeClass | Represents the concrete class type NetworkNodeClass |
| FdoClassType_NetworkLinkClass | Represents the concrete class type NetworkLinkClass |