分页汇总

打开CaseStudy目录下的文件:统计演示.Table

现在希望打印订单表,每页20行,每页最后一行显示数量和金额的小计,最后一页还要添加一行用于显示数量和金额的小计。

代码如下:

Dim doc As New PrintDoc
Dim
tb As Table = Tables("订单")
Dim
prs As Integer = 20 '每页20行
Dim
sum1 As Integer = 0 '数量小计
Dim
sum2 As Double = 0 '金额小计
Dim
tsum1 As Integer = 0 '数量总计
Dim
tsum2 As Double = 0 '金额总计
Dim
idx1 As Integer= tb.cols("数量").Index
Dim
idx2 As Integer= tb.cols("金额").Index
For
p As Integer = 0 To math.Ceiling(tb.Rows.Count / prs) - 1
   
Dim rt As New prt.RenderTable
   
rt.Style.Gridlines.All = New prt.Linedef(Color.Gray)
   
rt.CellStyle.Spacing.All = 0.5
   
sum1 = 0
   
sum2 = 0
    For
c As Integer = 0 To tb.Cols.Count - 1
       
rt.Cells(0,c).Text = tb.Cols(c).Name
    Next
    For
r As Integer = p * prs To math.min(tb.Rows.Count - 1,( p + 1) * prs - 1)
       
sum1 =sum1 + tb.rows(r)("数量")
       
sum2 =sum2 + tb.rows(r)("金额")
        For
c As Integer = 0 To tb.Cols.Count - 1
           
rt.Cells(r - p * prs + 1, c).Text = tb.rows(r)(c)
        Next
    Next
   
tsum1 = tsum1 + sum1
   
tsum2 = tsum2 + sum2
   
rt.Rows.Count = rt.Rows.Count + 1 '增加本页小计行
   
rt.Rows(rt.Rows.count -1)(0).text = "本页小计"
   
rt.Rows(rt.Rows.count -1)(idx1).text = sum1
   
rt.Rows(rt.Rows.count -1)(idx2).text = sum2
    If
p = math.Ceiling(tb.Rows.Count / prs) - 1 '如果是最后一页
       
rt.Rows.Count = rt.Rows.Count + 1 '增加总计行
       
rt.Rows(rt.Rows.count -1)(0).text = "总计"
       
rt.Rows(rt.Rows.count -1)(3).text = tsum1
       
rt.Rows(rt.Rows.count -1)(6).text = tsum2
   
Else
       
rt.BreakAfter = prt.BreakEnum.Page '否则换页
    End If
   
doc.Body.Children.Add(rt)
Next

doc
.Preview()


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