/// <summary>
        /// DataTable转换到List
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        private void DataTableToList(DataTable dt)
        {
            //获取最原始的List
            var orgList = (from dataTable in dt.AsEnumerable()
                           select new PropertyNodeItem()
                           {
                               ParentName = dataTable["OWNER"].ToString(),
                               ChildrenName = dataTable["TABLE_NAME"].ToString()
                           }).ToList();
            OrgList.AddRange(orgList);

            DataTable newdt = new DataView(dt.Columns["OWNER"].Table).ToTable(true, "OWNER");//去除重复,只留下OWNER
            //只获得Owner列表
            var newList = (from dataTable in newdt.AsEnumerable()
                           select dataTable["OWNER"].ToString());
            OwnerList.AddRange(newList);
        }