加一个每页指定打印40行公式，如何修改？

Dim top As Integer = getConfigValue("上边距",10)
Dim lft As Integer = getConfigValue("左边距",16)
Dim btm As Integer = getConfigValue("下边距",10)
Dim fl As Integer = getConfigValue("分栏距",6)
Dim zrs As Integer = 1
Dim dqh As Integer = Tables("student").Position
If getConfigValue("全部打印",True) = True
    zrs = DataTables("student").DataRows.Count
End If
Dim clr As Color = Color.white
If getConfigValue("填表模式",True) = False
    clr = Color.Black
End If
Dim s As String
Dim mxh,cnt As Integer
Dim dr As DataRow
Dim h As Integer = Top
\'-------------------------------------------------------以下代码定义报表
Dim doc As New PrintDoc() \'定义一个报表
Dim rt As New prt.RenderTable() \'定义一个表格对象
Dim rx As New prt.RenderText \'定义一个文本对象
Dim ra As New prt.RenderArea \'定义一个容器
doc.PageSetting.Width = 210 \'纸张宽度为210毫米
doc.PageSetting.Height = 297 \'纸张高度为120毫米
doc.AutoRotate = False \'禁止自动旋转打印内容
doc.PageSetting.Landscape = False \'横向打印
Doc.PageSetting.TopMargin = top \'设置上边距
Doc.PageSetting.LeftMargin = lft \'设置左边距
Doc.PageSetting.BottomMargin = btm \'设置下边距

Dim drs As List(Of DataRow)
For rn As Integer = 0 To zrs - 1
    If getConfigValue("全部打印",True) = True
        dqh = rn
    End If
    dr = Tables("student").Rows(dqh).DataRow
    drs = dr.GetChildRows("ksxx")
    If drs.Count = 0
        Continue For
    End If
    rt = New prt.RenderTable() \'定义一个表格对象
    rx = New prt.RenderText \'定义一个文本对象
    ra = New prt.RenderArea \'定义一个容器
    ra.SplitVertBehavior = prt.SplitBehaviorEnum.Never  \'禁止容器因为分页而被垂直分割
    ra.Width = "177mm"
    rt.Style.GridLines.All = New prt.LineDef(clr) \'将网格线类型设为默认类型Color.White
    rt.Style.TextAlignHorz = prt.AlignHorzEnum.Center \'水平居中
    rt.Style.TextAlignVert = prt.AlignVertEnum.Center \'垂直居中
    rt.Style.Spacing.Top = 5 \'表格和前面对象的垂直间隔为5毫米
    rt.Style.Spacing.Bottom = 5 \'表和和后续对象的垂直间隔为5毫米
    rt.Style.Spacing.All = 2 \'所有表格内边距为2mm
    rt.Style.Borders.all = New prt.Linedef(0,Color.White)

参考

http://www.foxtable.com/webhelp/scr/2241.htm

欲改成如图方式，公式不知加在什么地方，麻烦老师给修改下。实现每页40个数

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点击浏览该文件:公式.txt

   序号问题如何修改公式？

 For i As Integer = p * prs To math.min(mxh - 1,( p + 1) * prs - 1)
           
           
            \'For i As Integer = 0 To mxhd - 1
         
           
            rt.Rows(rt.Rows.Count).Height = 5
            rt.Rows(rt.Rows.Count-1).Style.Font = New Font("宋体", 10, FontStyle.Regular)
            rt.Cells(rt.Rows.Count-1,0).SpanCols = 1 \'向右合并2列
           
            rt.Cells(rt.Rows.Count-1,1).SpanCols = 2 \'向右合并2列
            rt.Cells(rt.Rows.Count-1,3).SpanCols = 2 \'向右合并2列
            rt.Cells(rt.Rows.Count-1,5).SpanCols = 4 \'向右合并2列
           
            \'rt.Cells(rt.Rows.Count-1,4).SpanCols = 3 \'向右合并2列
            rt.Cells(rt.Rows.Count-1,9).SpanCols = 5 \'向右合并2列
            rt.Cells(rt.Rows.Count-1,14).SpanCols = 2 \'向右合并2列
            \'rt.Cells(rt.Rows.Count-1,12).SpanCols = 4 \'向右合并2列
            rt.Cells(rt.Rows.Count-1,0).Style.GridLines.left = New prt.Linedef(0.5,clr)
            rt.Cells(rt.Rows.Count-1,12).Style.GridLines.Right = New prt.Linedef(0.5,clr)
            If i < cnt
               
                  Dim xuhao As Integer = 1
            rt.Cells(rt.Rows.Count-1,0).Text = xuhao
            xuhao = xuhao+1
               

For p As Integer = 0 To math.Ceiling(mxh  / prs) - 1

    Dim xuhao = 1

    For i As Integer = p * prs To math.min(mxh - 1,( p + 1) * prs - 1) 

        xuhao = xuhao + 1

    Next

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