自动补空行

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,如果某页不够20行,则自动补空行。

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
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
    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)
        For
c As Integer = 0 To tb.Cols.Count - 1
           
rt.Cells(r - p * prs + 1, c).Text = tb.rows(r)(c)
        Next
    Next
    If
p = math.Ceiling(tb.Rows.Count / prs) - 1 '如果是最后一页
        For
r As Integer = tb.Rows.Count To ( p + 1) * prs - 1 '补空行
           
rt.Rows.Count = rt.Rows.Count + 1
           
rt.Rows(rt.Rows.count -1)(0).text = " "
        Next
    Else
       
rt.BreakAfter = prt.BreakEnum.Page '否则换页
    End If
   
doc.Body.Children.Add(rt)
Next

doc
.Preview()


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