主题：专业报表直接进行列与列间计算,并合计计算列.

数量	单价
2	0.2
10	1.5

如上表,不存在表达式列情况下.

在专业报表中打印,能否直接生成如下表格打印?那个金额列如何生成?

数量	单价	金额
2	0.2	0.4
10	1.5	15

原来是：

报表单元格内容 = dr("列名")

现在是：

报表单元格内容 = dr("数量") * dr("单价")

收到..谢谢老爹.

Dim doc As New PrintDoc

Dim rt As New prt.RenderTable '定义一个新表格
Dim tb as Table = Tables("领药单")
rt.Cols(0).Width = 60
rt.Cols(1).Width = 40
rt.Style.Font = tb.Font
Dim cc as integer = tb.Cols.Count
rt.Cells(0,cc).Text = "金额"
For c As Integer = 0 To tb.Cols.Count -1 
    rt.Cells(0,c).Text = tb.Cols(c).Name 
    rt.Cells(0,c).Style.TextAlignHorz = prt.AlignHorzEnum.Center 
    If tb.Cols(c).IsNumeric Orelse tb.Cols(c).IsDate Then 
        rt.Cols(c).Style.TextAlignHorz = prt.AlignHorzEnum.Right 
    End If
    For r As integer = 0 To tb.Rows.Count -1 
        rt.Cells(r + 1, c).Text = tb(r,c)
        rt.Cells(r + 1, cc).Text = tb(r,3)*tb(r,4)
    Next
Next
rt.Style.Gridlines.All = New prt.Linedef(Color.Gray)
rt.CellStyle.Spacing.All = 1
rt.Rows(0).Style.TextAlignHorz = prt.AlignHorzEnum.Center
rt.RowGroups(0,1).Header = prt.TableHeaderEnum.All
doc.Body.Children.Add(rt)

Dim mm As New prt.RenderTable()
mm.cells(0,0).Text = "打单人 :" & Vars("操作员")
mm.Cells(0,1).Text = "领药人 :"
mm.Cells(0,2).Text = "合计:"
mm.Style.Font = New Font("仿宋", 10)
mm.Style.Spacing.Bottom = 5
doc.Body.Children.Add(mm)

doc.preview()

老爹,放出我的代码....标记绿色的为解决方法.

mm.Cells(0,2).Text = "合计:"  & 3 * 4

老爹您搞错了吧?....

3*4???
加上金额列合计应该这样....

Dim i as Double = 0
For rr As integer = 0 To tb.Rows.Count -1 
    i=i+tb(rr,3)*tb(rr,4)
Next

Dim mm As New prt.RenderTable()
mm.cells(0,0).Text = "打单人 :" & Vars("操作员")
mm.Cells(0,1).Text = "领药人 :"
mm.Cells(0,2).Text = "合计 :  " & i
mm.Style.Font = New Font("仿宋", 10)
mm.Style.Spacing.Bottom = 5
doc.Body.Children.Add(mm)

晕,tb.compute("sum(金额)")不行吗?

当然不行....因为tb表是没有金额列的...完全在专业报表里生成.

呵呵，我只是提示你这里可以任意组合的，这不你自己已经设计出来了啊。