主题：专业报表三层分组，求助

 'Dim e  = args(0)
Dim doc As New PrintDoc
Dim rt As Prt.RenderTable
Dim rx As prt.RenderText '定义一个文本对象
Dim rm As New prt.RenderImage() '定义一个图片对象
Dim tbl As Table = Tables("订单_产品主表")
Dim Rows As List(Of DataRow)
Dim Regions As List(Of String) = tbl.DataTable.GetValues("区域名称")
doc.Pagesetting.LandScape = True
For Each Region As String In Regions
    rx = New prt.RenderText
    rx.Style.FontSize = 10
    rx.Style.FontBold = True
    rx.Style.Spacing.Bottom = 1
    rx.Text = "区域: " & Region
    doc.Body.Children.Add(rx)
    rt = New prt.RenderTable
    rt.Style.Font = Tables("订单_产品主表").Font
    rt.Style.TextAlignVert = prt.AlignVertEnum.Center
    rt.Style.GridLines.All = New prt.LineDef(0.3,Color.LightGray)
    rt.Style.Spacing.Bottom = 2
    rt.CellStyle.Spacing.All = 1
    rt.Style.Font = tbl.Font
    Rows = tbl.DataTable.Select("[区域名称] = '" & Region & "'")
    
    Dim tb As Table = Tables("订单_产品主表")
    Dim ColNames As String() = New String(){"区域楼层","产品名称","图片","工艺描述","销售单价","计价单位","数量","金额小计","备注"}
    rt.Style.Font = tb.Font
    For c As Integer = 0 To ColNames.Length - 1 '逐列设置和填入内容
        rt.Cells(0,c).Text = ColNames(c) '列名作为标题
        rt.Cells(0,c).Style.TextAlignHorz = prt.AlignHorzEnum.Center '标题内容水平居中
        If ColNames(c) <> "备注" Then '
            rt.Cols(c).Width = tb.Cols(ColNames(c)).PrintWidth
        End If
        For r As Integer = 0 To Rows .Count -1 '开始填入该列内容
            rt.Cells(r + 1, c).Text = Rows (r)(ColNames(c))
        Dim tb1 As Table = Tables("订单_产品清单")
        Dim ColNames1 As String() = New String(){"区域楼层","产品名称","图片","工艺描述","销售单价","计价单位","数量","金额小计","备注"}
        rt.Style.Font = tb.Font
        For c1 As Integer = 0 To ColNames1.Length - 1 '逐列设置和填入内容
            rt.Cells(0,c1).Text = ColNames1(c1) '列名作为标题
            rt.Cells(0,c1).Style.TextAlignHorz = prt.AlignHorzEnum.Center '标题内容水平居中
            If ColNames(c1) <> "备注" Then '
                rt.Cols(c1).Width = tb.Cols(ColNames1(c1)).PrintWidth
            End If
            For r As Integer = 0 To Rows .Count -1 '开始填入该列内容
                rt.Cells(r + 1, c1).Text = Rows (r)(ColNames1(c1))
            Next
        Next
        
        
        
        
        
        
        
    Next
    rt.Style.GridLines.All = New prt.Linedef '设置网格线
    rt.Cols(0).Width = 20 '设置前四列的宽度,剩余的宽度被分配给5列(显示图片的那列)
    rt.Cols(1).Width = 35
    rt.Cols(2).Width = 30
    rt.Cols(3).Width = 50
    rt.Cols(4).Width = 20
    rt.Cols(5).Width = 20
    rt.Cols(6).Width = 10
    rt.Cols(7).Width = 30
    rt.CellStyle.Spacing.All = 0.4 '内容距离网格线0.5毫米
    rt.Style.TextAlignHorz = prt.AlignHorzEnum.Center '第一行内容水平居中
    rt.Style.TextAlignVert = prt.AlignVertEnum.Center '第一行内容垂直居中
    'rt.Rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.Center '第一行内容水平居中
    'rt.Rows(0).Style.TextAlignVert = prt.AlignVertEnum.Center '第一行内容垂直居中
    rt.Rows(0).Style.BackColor = Color.FloralWhite '第一行背景颜色设为灰色.
    rt.RowGroups(0,1).Header = prt.TableHeaderEnum.All '将第一行作为表头..
    doc.Body.Children.Add(rt) '将表格加入到报表
Next

doc.preview()