将多个数据表分配给单个DevExpress报告，ASP.Net

Question

我有三个数据表，具有不同的列。我想在一个DevExpress报告中显示所有三个数据表。我是DevExpress的新手，所以一步一步的解释非常感谢。

我尝试过以下代码：

report.BeginInit();
        report.BeginUpdate();
        report.DataMember = "[Contract No]";  // Column [Contract No] is common in all three Datatables
        report.DataSource = initial; //"Initial" is Datatable1

        DetailReportBand initialReport = report.Bands["DetailReport"] as DetailReportBand;
        initialReport.DataSource = initial;
        DetailReportBand surv1 = report.Bands["DetailReport"] as   DetailReportBand;
        surv1.DataSource = dt; // "dt" is Datatable2
        DetailReportBand surv2Report = report.Bands["DetailReport"] as DetailReportBand;
        surv2Report.DataSource = surv2; //"surv2" is Datatable3

        report.FillDataSource();
        report.CreateDocument();
        ASPxDocumentViewer1.Report = report;

此处“报告”是我用于创建DevExpress报告的外部类的实例。

提前谢谢。