public partial class XtraReport1 : DevExpress.XtraReports.UI.XtraReport

    {

        public XtraReport1()

        {

            InitializeComponent();

        }

        /// <summary>

        /// 设置主从表的数据源

        /// </summary>

        /// <param name="reportData"></param>

        public void SetReportDataSource(DataSet reportData)

        {

            //因涉及到修改DataSet的内部属性，建议创建副本进行操作。

            DataSet ds = reportData.Copy();//创建副本

            //重要！！！给组(GroupHeader)绑定主键字段

            //本报表是按业务单号分组

            GroupField gf = new GroupField("ID", XRColumnSortOrder.Ascending);

            GroupHeader1.GroupFields.Add(gf);

            //给数据集建立主外键关系

            DataColumn parentColumn = ds.Tables["t1"].Columns["ID"];

            DataColumn childColumn = ds.Tables["t2"].Columns["ID"];

            DataRelation R1 = new DataRelation("R1", parentColumn, childColumn);

            ds.Relations.Add(R1);

            //绑定主表的数据源

            this.DataMember = "t1";

            this.DataSource = ds;

            this.xrLabel2.DataBindings.Add("Text", ds, "t1.ID");  

            //绑定明细表的数据源

            this.DetailReport.DataMember = "R1";

            this.DetailReport.DataSource = ds;

            this.xrLabel5.DataBindings.Add("Text", ds, "R1.ID");

            this.xrLabel6.DataBindings.Add("Text", ds, "R1.Name");

            xrLabel3.DataBindings.Add("Text", ds, "R1.ID");//绑定小计(当前单据的总金额)

            xrLabel4.DataBindings.Add("Text", ds, "R1.ID");//绑定小计(当前单据的总金额)

        }

    }

private void simpleButton1_Click(object sender, EventArgs e)

        {

            XtraReport1 xtra = new XtraReport1();

            DataSet ds = new DataSet();

            DataTable dt1 = new DataTable("t1");

            dt1.Columns.Add("ID",Type.GetType("System.String"));

            DataTable dt2 = new DataTable("t2");

            dt2.Columns.Add("ID",Type.GetType("System.String"));

            dt2.Columns.Add("Name",Type.GetType("System.String"));

            for (int i = ; i < ; i++)

            {

                DataRow dt1Dr = dt1.NewRow();

                dt1Dr["ID"] = i.ToString();

                dt1.Rows.Add(dt1Dr);

                for (int j = ; j < ; j++)

                {

                    DataRow dt2Dr = dt2.NewRow();

                    dt2Dr["ID"] = i.ToString();

                    dt2Dr["Name"] = j.ToString() + "测试";

                    dt2.Rows.Add(dt2Dr);

                }

            }

            ds.Tables.Add(dt1);

            ds.Tables.Add(dt2);

            xtra.SetReportDataSource(ds);

            xtra.ShowPreviewDialog();

        }