主题：[求助]专业报表中的关联行问题

Dim rx As prt.RenderText

Dim rt As prt.RenderTable

Dim Rows As List(Of DataRow)

Dim tbl As new List(of DataRow)

tbl = DataTables("日记账").SQLSelect("[公司编码] = '" & _UserGsbm & "'and [日期] = '" & pzrq.Value & "'")

For i As Integer = 0 To tbl.Count - 1

    rx = New prt.RenderText

    rx.Style.FontSize = 12

    rx.Style.FontBold = True

    rx.Style.Spacing.Bottom = 5

    rx.Text = "流水编号: " & tbl(i)("流水编号") & "日期:" & tbl(i)("日期") & "收入:" & tbl(i)("收入") & "支出:" & tbl(i)("支出") & "流水状态:" & tbl(i)("流水状态") & "记账人:" & tbl(i)("记账_负责") & "记账日期:" & tbl(i)("记账_日期")

    doc.Body.Children.Add(rx)

    rt = New prt.RenderTable

    rt.Style.TextAlignHorz = prt.AlignHorzEnum.Center

    rt.Style.TextAlignVert = prt.AlignVertEnum.Center

    rt.Style.Borders.Bottom = New prt.LineDef(0.3,Color.LightGray)

    rt.CellStyle.Spacing.All = 1

    rt.Cols.Count = 4

    rt.Cells(0,0).Text = "明细编号"

    rt.Cells(0,1).Text = "摘要日期"

    rt.Cells(0,2).Text = "摘要对象"

    rt.Cells(0,3).Text = "摘要事件"

    rt.Cells(0,4).Text = "收支方式"

    rt.Cells(0,5).Text = "凭证编号"

    rt.Cells(0,6).Text = "收入"

    rt.Cells(0,7).Text = "支出"

    rt.Cells(0,8).Text = "订单编号"

    rt.rows(0).Style.Borders.Top = New prt.LineDef(1,Color.LightGray)

    rt.rows(0).Style.Borders.Bottom = New prt.LineDef(1,Color.LightGray)

    Rows = tbl(i).GetChildRows("明细账")

    For r As Integer = 0 To Rows.Count - 1

        rt.Cells(r+1,0).Text = rows(r)("明细编号")

        rt.Cells(r+1,1).Text = rows(r)("摘要日期")

        rt.Cells(r+1,2).Text = rows(r)("摘要对象")

        rt.Cells(r+1,3).Text = rows(r)("摘要事件")

        rt.Cells(r+1,4).Text = rows(r)("收支方式")

        rt.Cells(r+1,5).Text = rows(r)("凭证编号")

        rt.Cells(r+1,6).Text = rows(r)("收入")

        rt.Cells(r+1,7).Text = rows(r)("支出")

        rt.Cells(r+1,8).Text = rows(r)("订单编号")

    Next

    doc.Body.Children.Add(rt)

    rx = New prt.RenderText

    rx.Style.FontBold = True

    rx.Style.Spacing.Top = 3

    rx.Text = "笔数: " & Rows.Count

    rx.Style.TextAlignHorz = prt.AlignHorzEnum.Right

    doc.Body.Children.Add(rx)

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想问下，这个求 关联表子表的怎么写？