public Nullable<int> ReferenceRelationId { get; set; }

Public Property ReferenceRelationId As Nullable(Of Integer)
	Get
	Set

public:
virtual property Nullable<int> ReferenceRelationId {
	Nullable<int> get () sealed;
	void set (Nullable<int> value) sealed;
}

abstract ReferenceRelationId : Nullable<int> with get, set
override ReferenceRelationId : Nullable<int> with get, set