子报告未显示（rdl）

Question

我正在尝试制作一份包含子报告的rdl报告。当我预览报告时，一切正常。但是在我部署报告n子报告并尝试通过程序运行后，我收到错误。“子报告无法显示”

            this.ReportViewer1.ProcessingMode = Microsoft.Reporting.WebForms.ProcessingMode.Remote;
            this.ReportViewer1.ServerReport.ReportServerUrl = new Uri("http://192.168.50.187/ReportServer");
            this.ReportViewer1.ServerReport.ReportPath = "/ReportServer/ChartOfAccounts";

            this.ReportViewer1.ShowParameterPrompts = false;

            IReportServerCredentials irsc = new CustomReportCredentials("Report_user", "ipix.123", "IPIXSOLUTIONS");
            this.ReportViewer1.ServerReport.ReportServerCredentials = irsc;
            ReportParameter[] parm = new ReportParameter[3];

            parm[0] = new ReportParameter("company_ID", Convert.ToString(4));

            parm[1] = new ReportParameter("accntGrplvl1_ID", Convert.ToString(1));

            parm[2] = new ReportParameter("accntGrplvl2_ID", Convert.ToString(2));
            this.ReportViewer1.ServerReport.SetParameters(parm);

           this.ReportViewer1.ServerReport.Refresh();

这是我的代码。我必须为子报告提供一些代码吗？.b报告在同一个文件夹中。子报告的参数取自主报告本身..我哪里出错？< / p>