根据狐爸老师在论坛的一段“自动补空行”的代码，移植过来（黄色标记）后不起作用，不知问题出在哪里，请各位老师指教，谢谢！！

Dim doc As New PrintDoc \'定义一个新报表
Dim tb As Table = Tables("订单")  \'捆绑表
Dim prs As Integer = 40   \'每页40行
Dim sum1 As Integer = 0  \'定义整数变量(小计)
Dim sum2 As Double = 0 \'定义双精度变量(小计)
Dim tsum1 As Integer = 0  \'定义整数变量(合计)
Dim tsum2 As Double = 0 \'定义双精度变量(合计)
For p As Integer = 0 To math.Ceiling(tb.Rows.Count / prs) - 1  \'大循环,计算共几页
    Dim ColNames As String() = {"日期","产品","单价","折扣","数量","金额"}
    Dim rt As New prt.RenderTable   \'定义一个新表格
    rt.Width = "Parent.Width" \'表格宽度等于容器宽度
    rt.CanSplitHorz = True  \'表格宽度超出页宽时,可以水平换页
    rt.Style.Font = tb.Font
    rt.Style.Gridlines.All = New prt.Linedef(Color.Gray)  \'灰色网格线
    rt.CellStyle.Spacing.All = 1.0   \'单元格内距设为1.0毫米
    For i As Integer = 0 To ColNames.Length -1 \'逐列设置和填入内容
        rt.Cells(0,i).Text = ColNames(i)   \'列名作为标题
        rt.Cells(0,i).Style.TextAlignHorz = prt.AlignHorzEnum.Center   \'标题内容水平居中
       
        rt.Cols(i).Width = tb.Cols(ColNames(i)).PrintWidth \'列宽等于实际列宽
        If tb.Cols(ColNames(i)).IsNumeric Then \'如果是数值
            rt.Cols(i).Style.TextAlignHorz = prt.AlignHorzEnum.Right \'数据水平靠右
        Else
            rt.Cols(i).Style.TextAlignHorz = prt.AlignHorzEnum.Center  \'数据水平居中
        End If
        For r As Integer = p * prs To math.min(tb.Rows.Count - 1,( p + 1) * prs - 1)  \'小循环
            rt.Cells(r - p * prs + 1, i).Text = tb.rows(r)(ColNames(i))
            If (ColNames(i)) = "数量" \'设置格式
                rt.Cells(r - p * prs + 1, i).Text = format(tb.rows(r)(ColNames(i)),"0")
            ElseIf (ColNames(i)) = "单价"
                rt.Cells(r - p * prs + 1, i).Text = format(tb.rows(r)(ColNames(i)),"0.00")
            ElseIf (ColNames(i)) = "折扣"
                rt.Cells(r - p * prs + 1, i).Text = format(tb.rows(r)(ColNames(i)),"0.00")
            ElseIf (ColNames(i)) = "金额"
                rt.Cells(r - p * prs + 1, i).Text = format(tb.rows(r)(ColNames(i)),"0.00")
            Else
                rt.Cells(r - p * prs + 1, i).Text = tb.rows(r)(ColNames(i))
            End If
        Next
        If i = 0 Then \'加空行
            For r As Integer = tb.Rows.Count To prs
                rt.Cells(r - p * prs + 1, 0).Text = " "
            Next
        End If

    Next
    Sum1 = 0
    sum2 = 0
    For r As Integer = p * prs To math.min(tb.Rows.Count - 1,( p + 1) * prs - 1) \'累计
        Sum1 =sum1 + tb.rows(r)("数量")
        sum2 =sum2 + tb.rows(r)("金额")
    Next
    Tsum1 = tsum1 + sum1
    tsum2 = tsum2 + sum2
    rt.Rows.Count = rt.Rows.Count + 1 \'增加小计行
    rt.Rows(rt.Rows.count -1)(3).text = "本页小计"
    rt.Rows(rt.Rows.count -1)(4).Text = format(sum1,"0")  \'设置小计格式
    rt.Rows(rt.Rows.count -1)(5).Text = format(sum2,"0.00")
    If p < math.Ceiling(tb.Rows.Count / prs) - 1
        rt.BreakAfter = prt.BreakEnum.Page
    Else
        rt.Rows.Count = rt.Rows.Count + 1 \'增加合计行
        rt.Rows(rt.Rows.count -1)(3).text = "合计"
        rt.Rows(rt.Rows.count -1)(4).Text = format(tsum1,"0") \'设置合计格式
        rt.Rows(rt.Rows.count -1)(5).Text = format(tsum2,"0.00")
    End If
    doc.Body.Children.Add(rt)  \'将表格加入到报表
Next
\'设置页眉
Dim rx As New prt.RenderTable
rx.Cells(0,0).Text = Date.Today
rx.Cells(0,1).Text = "订单明细"
rx.Cells(0,2).Text = "第[PageNo]页,共[PageCount]页"
rx.Cols(0).Style.TextAlignHorz = prt.AlignHorzEnum.Left \'水平靠左
rx.Cols(0).Style.TextAlignVert = prt.AlignVertEnum.Bottom \'垂直靠下
rx.Cols(1).Style.TextAlignHorz = prt.AlignHorzEnum.Center \'水平居中
rx.Cols(2).Style.TextAlignHorz = prt.AlignHorzEnum.right \'水平靠右
rx.Cols(2).Style.TextAlignVert = prt.AlignVertEnum.Bottom \'垂直靠下
rx.Style.Borders.Bottom = New prt.LineDef \'设置底边框
rx.CellStyle.Spacing.Bottom = 1 \'底端内容缩进1.0毫米
rx.Cells(0,1).Style.FontSize = 14  \'设置第二列行字号
rx.Cells(0,1).Style.FontBold = True \'字体加粗
Doc.PageHeader = rx \'作为页眉使用
Doc.Preview() \'预览

这是狐爸老师的原代码：

Dim doc As New PrintDoc
Dim rt As New prt.RenderTable
Dim MinRows As Integer = 20
Dim tb As Table = Tables("表A")
For c As Integer = 0 To tb.Cols.Count -1 \'逐列填入内容
    rt.Cells(0,c).Text = tb.Cols(c).Name \'列名作为标题
    For r As Integer = 0 To tb.Rows.Count -1
        rt.Cells(r + 1, c).Text = tb(r,c)
    Next
    IF c = 0 Then \'加空行
        For  r As Integer = tb.Rows.Count To MinRows
            rt.Cells(r+1,0).Text = " "
        Next
    End If
Next
rt.Style.Gridlines.All = New prt.Linedef(Color.Gray) \'灰色网格线
doc.Body.Children.Add(rt)
doc.Preview()