public static string CanOrder(QueryToken token) { if (token == null) { return("No column selected"); } if (token.Type.IsEmbeddedEntity() && !OrderAdapters.ContainsKey(token.Type)) { return("{0} can not be ordered".FormatWith(token.Type.NicePluralName())); } if (QueryToken.IsCollection(token.Type)) { return("Collections can not be ordered"); } if (token.HasAllOrAny()) { return("'{0}', '{1}', '{2}' or '{3}' can not be ordered".FormatWith( CollectionAnyAllType.All.NiceToString(), CollectionAnyAllType.Any.NiceToString(), CollectionAnyAllType.NoOne.NiceToString(), CollectionAnyAllType.AnyNo.NiceToString())); } return(null); }