参考

http://www.foxtable.com/webhelp/scr/2049.htm

sql语句生成的datatable，同样和2楼那样写代码。

方法一：

Dim doc As New PrintDoc
Dim rt As New prt.RenderTable
Dim tb As DataTable = DataTables("订单")
Dim ColNames As String() = New String(){"产品", "客户","单价","折扣","数量","金额","日期"}
Dim MergeCols As Integer = 2 \'指定要合并的列数
Dim drs = tb.Select("", "产品,客户") \'根据合并列排序
rt.Width = "Auto"
rt.SplitHorzBehavior = prt.SplitBehaviorEnum.SplitIfNeeded
rt.Style.TextAlignVert = prt.AlignVertEnum.Center
rt.RepeatGridLinesVert = True \'换页后重复表格线
For c As Integer = 0 To ColNames.Length - 1
    Dim lr As Integer \' 用于保存合并区域的起始行
    rt.Cells(0,c).Text = ColNames(c)
    rt.Cells(0,c).Style.TextAlignHorz = prt.AlignHorzEnum.Center
    If tb.datacols(ColNames(c)).IsNumeric OrElse tb.datacols(ColNames(c)).IsDate Then
        rt.cols(c).Style.TextAlignHorz = prt.AlignHorzEnum.Right
    End If
    For r As Integer = 0 To drs.Count - 1
        If c <= MergeCols - 1 Then \'如果是要合并的列
            Dim Merge As Boolean = True
            If r = 0 Then
                Merge = False
            Else
                For n As Integer = 0 To c
                    If drs(r)(ColNames(n)) <> drs(r - 1)(ColNames(n))
                        Merge = False
                        Exit For
                    End If
                Next
            End If
            If Merge Then
                rt.Cells(lr,c).SpanRows = rt.Cells(lr,c).SpanRows + 1
            Else
                rt.Cells(r + 1, c).Text = drs(r)(ColNames(c))
                rt.Cells(r + 1, c).VertSplitBehavior = prt.CellSplitBehaviorEnum.Copy \'换页后重复单元格
                lr = r + 1
            End If
        Else
            rt.Cells(r + 1, c).Text = drs(r)(ColNames(c))
        End If
    Next
Next
rt.Style.Gridlines.All = New prt.Linedef(Color.Gray)
rt.CellStyle.Spacing.All = 0.5
rt.Rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.Center
rt.RowGroups(0,1).Header = prt.TableHeaderEnum.All
doc.Body.Children.Add(rt)
doc.Preview()

方法二：你可以用一个table接收dt表格，如

e.form.controls("Table1").table.datasource = dt

然后用 Dim tb As Table = e.form.controls("Table1").table

还能这样用，佩服。