rdlc传入参数值

 private void bbxw_Load(object sender, EventArgs e)
        {
            
            //取得数据集
            string sqlstr = "SELECT * FROM blxwnr where bh='" + main.bbstr + "'";
            OleDbDataReader rdbl = Class1.read(sqlstr,Class1.constr);
            rdbl.Read();
            this.reportViewer1.LocalReport.ReportEmbeddedResource = "dzbl.Report1.rdlc";
            ReportParameter a1 = new ReportParameter("t1", Convert.ToString(rdbl[4]));//开始时间
            ReportParameter a2 = new ReportParameter("t2", Convert.ToString(rdbl[5]));//结束时间
            ReportParameter a3 = new ReportParameter("t3", Convert.ToString(rdbl[6]));//笔录地点
            ReportParameter a4 = new ReportParameter("t4", Convert.ToString(rdbl[7]));//笔录讯问人
            ReportParameter a5 = new ReportParameter("t5", Convert.ToString(rdbl[8]));//笔录记录人
            ReportParameter a6= new ReportParameter("t6", Convert.ToString(rdbl[9]));//案由
            ReportParameter a7 = new ReportParameter("t7", Convert.ToString(rdbl[10]));//嫌疑人
            ReportParameter a8 = new ReportParameter("t8", Convert.ToString(rdbl[11]));//曾用名
            ReportParameter a9 = new ReportParameter("t9", Convert.ToString(rdbl[12]));//性别
            ReportParameter a10 = new ReportParameter("t10", Convert.ToString(rdbl[13]));//年龄
            ReportParameter a11 = new ReportParameter("t11", Convert.ToString(rdbl[14]));//民族
            ReportParameter a12 = new ReportParameter("t12", Convert.ToString(rdbl[15]));//文化程序
            ReportParameter a13 = new ReportParameter("t13", Convert.ToString(rdbl[16])); //政治面貌
            ReportParameter a14 = new ReportParameter("t14", Convert.ToString(rdbl[17])+Convert.ToString(rdbl[18]));//工作单位//职务
            ReportParameter a15 = new ReportParameter("t15", Convert.ToString(rdbl[19])+Convert.ToString(rdbl[20])+Convert.ToString(rdbl[21]));//住址//座机//手机
            ReportParameter a16 = new ReportParameter("t16", Convert.ToString(rdbl[22]));//内容
         
            this.reportViewer1.LocalReport.SetParameters(new ReportParameter[] {a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16});
                    
            //设置打印布局模式,显示物理页面大小
            this.reportViewer1.SetDisplayMode(Microsoft.Reporting.WinForms.DisplayMode.PrintLayout);
            //缩放模式为百分比,以100%方式显示
            this.reportViewer1.ZoomMode = Microsoft.Reporting.WinForms.ZoomMode.Percent;
            this.reportViewer1.ZoomPercent = 100;
            //刷新报表
            this.reportViewer1.LocalReport.Refresh();
           
             rdbl.Close();
           
        }