主题：请教：分组报表问题

'设置页眉
rt = New prt.RenderTable
rt.Cells(0,0).Text = "主要物资需用限（定）额数量总计划表"
rt.Cells(1,0).RenderObject = rm '将单元格内容设置为图片对象rm
rt.Cells(1,1).Text = "  主要物资需用限（定）额数量总计划表"
rt.Cells(1,2).Text = "表格编号:"
rt.Cells(2,2).Text = "0902"
rt.Cols(2).Width = 60
rt.Cols(0).Width = 16
rt.Cells(1,1).Style.TextAlignvert = prt.AlignVertEnum.Center
rt.Cols(2).Style.TextAlignHorz = prt.AlignHorzEnum.Center
rt.Cols(2).Style.TextAlignvert = prt.AlignvertEnum.Center
rt.rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.Center
'设置合并单元格
rt.Cells(0,0).Spancols = 3 '第1行第5个单元格向下合并6行(用于显示照片)
rt.Cells(1,1).Spanrows =2  '第5行第2个单元格向右合并3列(用于显示地址)
rt.Cells(1,0).Spanrows =2  '第5行第2个单元格向右合并3列(用于显示地址)
rt.Rows(1).Height = 8
rt.Rows(2).Height = 8
rt.Style.Gridlines.All = New prt.Linedef(Color.black) '黑色网格线
rt.CellStyle.Spacing.Bottom = 0.5 '底端内容缩进0.5毫米
rt.Style.FontSize = 12 '字体大小为8磅
rt.Cells(0,0).Style.FontSize = 18 '字体大小为8磅
rt.Cells(0,0).Style.FontBold = True '字体加粗
rt.Rows(0).Style.Borders.All = New prt.LineDef("0mm", Color.white) '去掉第二行的网格线
rt.Rows(0).Style.Borders.Bottom = New prt.Linedef  '恢复第二行底端的网格线
rt.cols(0).Style.GridLines.right = New prt.Linedef("0mm", Color.white)  '去掉第一行底端的网格线
Doc.PageHeader = rt '作为页眉使用

'设置页脚
rt = New prt.RenderTable
rt.Cells(0,0).Text = "技术负责人:"
rt.Cells(0,2).Text = "审核人:"
rt.Cells(0,4).Text = "编制人:"
rt.Cells(0,6).Text = "物资部接收人:"
rt.Cells(0,8).Text = "日期:       年     月     日"
rt.Cols(6).Width = 30
rt.Cols(8).Width = 40
rt.Cols(0).Style.TextAlignHorz = prt.AlignHorzEnum.Left
rt.Cols(8).Style.TextAlignHorz = prt.AlignHorzEnum.right

rt.Style.FontSize = 10 '字体大小为8磅
Doc.PageFooter = rt '作为页脚使用

For j As Integer = 0 To datas.count - 1
    Dim data() As String = datas(j)
    Dim n As Integer = Tables("物资统计表").cols.Count
    rt = New prt.RenderTable
    rt.Style.FontSize = 10
    rt.Style.Spacing.Top = 0
    rt.Style.Spacing.Bottom = 0
    rt.Cells(0, 0).Text = "  工程项目名称: " & Data(0) & "                                                  计划编号: " & Data(1)
    rt.Cells(0,0).Spancols =n-1
    rt.Cells(1, 0).text = "物资编号"
    For i As Integer = 2 To n-1
        rt.Cells(1, i-1).text = Tables("物资统计表").cols(i).Caption
    Next
   
    Dim drs As List(Of DataRow) = DataTables("物资统计表").Select("计划编号 = '" & data(1) & "'")
    For r As Integer = 0 To drs.Count-1
        Dim dr As DataRow = drs(r)
        rt.Cells(r+2, 0).text = r + 1
        For i As Integer = 2 To n-1
            rt.Cells(r+2, i-1).text = dr(Tables("物资统计表").cols(i).name)
        Next
    Next
   
    '补空行
    For i As Integer = drs.Count To 20
        rt.Cells(i+2, 0).text = " "
    Next
    '换页
    If j < Datas.Count - 1 Then
        rt.BreakAfter = prt.BreakEnum.page
    End If
    rt.CellStyle.Spacing.All = 0.5 '单元格内距设为0.5毫米
    rt.Rows(0).Height = 8
    rt.Cols(0).Width = 10
    rt.Cols(3).Width = 15
    rt.Cols(4).Width = 15
    rt.Style.TextAlignHorz = prt.AlignHorzEnum.center '所有文本内容靠右对齐
    rt.Style.TextAlignVert = prt.AlignVertEnum.center '所有文本内容垂直居中
    rt.Rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.left '第一行内容水平居中
    rt.RowGroups(0, 2).Header = prt.TableHeaderEnum.All '利用行组功能设置表头
    rt.Style.Gridlines.All = New prt.Linedef(Color.black) '黑色网格线
    rt.Rows(0).Style.GridLines.Vert = New prt.LineDef("0mm", Color.white) '去掉第一行的网格线
    rt.Rows(0).Style.GridLines.Top = New prt.Linedef("0mm", Color.white)  '去掉第一行底端的网格线
   
    doc.Body.Children.Add(rt)
Next