Sqlsatasource.sqlcommand 执行问题

Question

protected void Page_Load(object sender, EventArgs e)
        {
            string selectcmd = "SELECT * FROM CDInfo WHERE CDID=@id";
            SqlDataSource1.SelectParameters.Add("@id", Request.QueryString["id"]);
            SqlDataSource1.SelectCommand = selectcmd;
            
            SqlDataSource1.select();     //报错：select method take 0 argument   
             SqlDataSource1.select(DataSourceSelectArguments.Empty);   // 必须声名"@id"
            
        }请问我应该如何写才能执行select这个 method?