[dotNetRDF-Support] ontologyGraph.AllProperties does not retrieve DatatypeProperties

[Sura M. <sur...@ya...>]

Hi,
I am using dotnetrdf 0.9.0, and am trying to retrieve the DatatypeProperties in my ontology.
My ontology has DatatypeProperties, as well as ObjectProperties as shown below:


<owl:DatatypeProperty rdf:about="&ve;toName">
        <rdfs:label xml:lang="en">toName</rdfs:label>
        <rdfs:domain rdf:resource="&ve;CommunicationMessage"/>
        <rdfs:range rdf:resource="&xsd;string"/>
    </owl:DatatypeProperty>


<owl:ObjectProperty rdf:about="&ve;isSituationOf">
        <rdfs:label xml:lang="en">isSituationOf</rdfs:label>
        <rdfs:domain rdf:resource="&ve;Situation"/>
        <rdfs:subPropertyOf rdf:resource="&ve;isSnapshotPartOf"/>
    </owl:ObjectProperty>

However, the below code fragment returns only ObjectProperties:
 ontologyGraph = new OntologyGraph();
 FileLoader.Load(ontologyGraph, "ve-ontology.owl");                      
                
 foreach (OntologyProperty prop in ontologyGraph.AllProperties)
       Console.WriteLine(prop);  

Can someone please point me out the way to retrieve the DatatypeProeprties in my ontology?

Thanks in advance
/Sura