主题：专业报表 分组错误

 Dim doc As New PrintDoc
Dim rt As Prt.RenderTable
Dim rx As prt.RenderText
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 = 14
    rx.Style.FontBold = True
    rx.Style.Spacing.Bottom = 2
    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 = 5
    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","区域名称","订单类别","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 tb.Rows.Count -1 '开始填入该列内容
            rt.Cells(r + 1, c).Text = tb.Rows(r)(ColNames(c))
        Next
    Next
    rt.Style.Gridlines.All = New prt.Linedef(Color.Gray) '灰色网格线
    rt.CellStyle.Spacing.All = 0.5 '单元格内距设为0.5毫米
    rt.Rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.Center '第一行内容水平居中
    rt.RowGroups(0,1).Header = prt.TableHeaderEnum.All '利用行组,将第一行设为表头.
    doc.Body.Children.Add(rt) '将表格加入到报表
Next

 Dim doc As New PrintDoc

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错误
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编译错误:“c”是一个类型，不能用作表达式。



错误代码：rt.Cells(r + 1, c).Text = tb.Rows(r)(ColNames(c))
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确定   
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   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))
        Next
    Next

再用2楼代码试试，手机编写不方便，这一段应放循环里：