c# 根据父节点id,找到所有的子节点数据

转自:https://blog.csdn.net/q107770540/article/details/7708418

查的是表 Model_info中父节点为p_id时找到所有的子节点的集合

 //通过父节点找到所有子节点
        public IEnumerable<ModelInfo> GetSonID(string p_id)
        {
            var query = from c in _context.Model_Info
                        where c.parent_dbId == p_id
                        select c;

            return query.ToList().Concat(query.ToList().SelectMany(t => GetSonID(t.object_id)));
        }

  

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转载自www.cnblogs.com/xuqp/p/9298761.html