授信主体查找

    /// <summary>
        /// 获取父ids
        /// </summary>
        /// <param name="groups">组织机构列表</param>
        /// <param name="parentId">当前授信主体父id</param>
        /// <returns></returns>
        private List<int> GetParentIds(List<Group> groups, int parentId)
        {
            List<int> parentIds = new List<int>();
            parentIds.Add(parentId);
            Group group = groups.Where(g => g.Id == parentId).FirstOrDefault();
            if (group != null)
            {
                parentIds.Add(group.Id);
                if (group.ParentId != 0)
                {
                    GetParentIds(groups, group.ParentId);
                }
            }
            return parentIds;
        }

 List<Group> Groups = new List<Group>();
                object[] objs = MappingEngine.Filter(typeof(Group), null);
                foreach (var obj in objs)
                {
                    Group group = obj as Group;
                    Groups.Add(group);
                }
                Group organization = Groups.Where(g => g.Id == this.OrganizationId).FirstOrDefault();
                List<int> ids = GetParentIds(Groups, organization.ParentId);
                ids.Add(organization.Id);
                if (ids.Contains(credit.Grantor))
                {
                    //通过验证
                }
                else
                {
                    throw new Exception("责任主体非授信主体或其下级机构。");
                }