vs 2005使用帶參數的存儲過程

 //指定存儲過程stp
        SqlDataSource sds = new SqlDataSource(db_conn.myconn.ConnectionString , "usp_ Registration_select_val");
        //聲明storedprocedure 命名類型
        sds.SelectCommandType = SqlDataSourceCommandType.StoredProcedure ;
        //參數
        sds.SelectParameters.Add("UserName", "nina");
        //將sqldatasource添加倒page
       // page.Controls.Add(sds);
        //生成一個dataview
        DataView dv = new DataView();
        dv = (DataView )sds.Select(DataSourceSelectArguments.Empty);

        //指定gridview的datasourceid為sds.uniqueid
        this.GridView1.DataSource = dv;
        this.GridView1.DataBind();