请看以下代码，看看怎么回事

Question

User.CS[TableAttribute("User")]
    public class User:SuperEntity
    {
        [Colum("userID", DbType = DbType.Int32)]
        public int UserID { get; set; }        [Colum("UserName", DbType = DbType.String)]
        public string UserName { get; set; }        public void Save()
        {
            
        }
        
    }SuperEntity.CSpublic abstract  class SuperEntity
    {
        private int aaa;
        public  bool InsertEntity(object obj)
        {
            string strSql = ORMHelper.GetInsertSqlStr(obj);
            if (SqlHelper.ExecuteNonQuery(System.Data.CommandType.Text, strSql) > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }        public T GetInfo<T>(int pkid) 
        {
            T local = Activator.CreateInstance<T>(); 
            Type type = local.GetType();  
            TableAttribute temp = (TableAttribute)type.GetCustomAttributes(typeof(TableAttribute), false).First();
            string tabName = temp.TableName;
            SqlDataReader dr = SqlHelper.ExecuteReader(System.Data.CommandType.Text,"Select * from ["+tabName+"] where UserID="+pkid);
            while(dr.Read())
            {
                for(int i=0;i<dr.FieldCount;i++)
                {
                    PropertyInfo proper = type.GetProperty(dr.GetName(i));
                    proper.SetValue(dr.GetName(i),dr[i], null);
                }
            }
            
            //PropertyInfo[] Propertys = type.GetProperties();
            //foreach (var item in Propertys)
            //{       item.SetValue(
            //    object[] attributes = item.GetCustomAttributes(false);
            //    foreach (var item1 in attributes)
            //    {
            //        //取列名
            //        ColumAttribute colum = item1 as ColumAttribute;
            //        if (colum != null)
            //        {
            //            //columValue.Add(colum.ColumName, value);
            //        }
            //    }
            //}
           // ColumAttribute colTemp = (ColumAttribute)type.GetCustomAttributes(typeof(ColumAttribute), false).First();
           
            return local;
        }
    }TableAttribute.CS[Serializable, AttributeUsage(AttributeTargets.Class)]
    public class TableAttribute : Attribute
    {
        //保存表名的字段
        private string _tableName;
        public TableAttribute() { }
        public TableAttribute(string tableName)
        {
            this._tableName = tableName;
        }
        // 映射的表名(表的全名:模式名.表名)/// 
        public string TableName
        {
            set { this._tableName = value; }
            get { return this._tableName; }
        }
    }
请问我在SuperEntity这个类里的这个方法中
public T GetInfo<T>(int pkid) 
        {
            T local = Activator.CreateInstance<T>(); 
           //为什么我访问不到local.TableAttribute.TableName，运行时时T为User类请高手帮我分析一下？怎么样去设置T的属性，到最后返回出去谢谢了