private void AddRelationship(Relationship relationship)
{
relationships.Add(relationship);
relationship.Modified += new EventHandler(ElementChanged);
OnRelationAdded(new RelationshipEventArgs(relationship));
}
public void RemoveRelationship(Relationship relationship)
{
if (relationships.Contains(relationship))
{
if (relationship.RelationshipType == RelationshipType.Edge)
{
//remove the corresponding edgeID list element.
RemoveEdgeID((EdgeRelationship)relationship);
}
if (relationship.RelationshipType == RelationshipType.Path)
{
RemoveEdgeID((PathRelationShip)relationship);
}
relationship.Detach();
relationship.Modified -= new EventHandler(ElementChanged);
relationships.Remove(relationship);
OnRelationRemoved(new RelationshipEventArgs(relationship));
}
}
public RelationshipEventArgs(Relationship relationship)
{
this.relationship = relationship;
}
protected virtual void CopyFrom(Relationship relationship)
{
label = relationship.label;
}
protected virtual void CopyFrom(Relationship relationship)
{
label = relationship.label;
}