public void Add(RelationshipStyle relationshipStyle) { if (relationshipStyle != null) { this.Relationships.Add(relationshipStyle); } }
public void Add(RelationshipStyle relationshipStyle) { if (relationshipStyle != null) { if (_relationships.Exists(es => es.Tag.Equals(relationshipStyle.Tag))) { throw new ArgumentException("A relationship style for the tag \"" + relationshipStyle.Tag + "\" already exists."); } _relationships.Add(relationshipStyle); } }