Lucene.Net.Search.SortField.InitFieldType C# (CSharp) Метод

        private void InitFieldType(string field, Type_e type)
        {
            this.type = type;
            if (field == null)
            {
                if (type != Type_e.SCORE && type != Type_e.DOC)
                {
                    throw new System.ArgumentException("field can only be null when type is SCORE or DOC");
                }
            }
            else
            {
                this.field = field;
            }
        }