C# 遍历对象的属性 获取或设置值

--设置值  p.SetValue(parm, row["ParmValue"].ToString(), null);

        public Parm GetParm(DataTable dt)
        {
            Parm parm = new Parm();
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (System.Reflection.PropertyInfo p in parm.GetType().GetProperties())
                {
                    foreach (DataRow row in dt.Rows)
                    {
                        if (row["ParmName"].ToString().ToUpper() == p.Name.ToUpper())
                        {
                            p.SetValue(parm, row["ParmValue"].ToString(), null);
                            break;
                        }

                    }
                }
                return parm;
            }
            return null;

        }

--获取值   p.GetValue(parm, null),p.Name);

            StringBuilder strSql = new StringBuilder();
            string update = " UPDATE AreaParm SET ParmValue={0} WHERE AreaID=" + AreaID + " AND ParmType=" + ParmType + " AND ParmName='{1}'; ";
            foreach (System.Reflection.PropertyInfo p in parm.GetType().GetProperties())
            {
               string.Format("Name:{0} Value:{1}", p.Name, p.GetValue(parm, null));
               strSql.AppendFormat(update, p.GetValue(parm, null),p.Name);
            }
            return Dal.DalCommon.ExecuteSqlCmd(new SqlCommand(strSql.ToString()));