For i As Integer = tbl.TopRow To tbl.BottomRow
rx = New prt.RenderText
rx.BreakBefore = prt.BreakEnum.Page '另起一页再打印
rx.Style.FontSize = 14
rx.Style.FontBold = True
rx.Style.Spacing.Bottom = 5
rx.Text = "类别: " & Tables("类别").Rows(i)("类别名称")
doc.Body.Children.Add(rx)
rt = New prt.RenderTable
rt.Style.TextAlignHorz = prt.AlignHorzEnum.Center
rt.Style.TextAlignVert = prt.AlignVertEnum.Center
rt.Style.Borders.Bottom = New prt.LineDef(0.3,Color.LightGray)
rt.CellStyle.Spacing.All = 1
rt.Cols.Count = 4
rt.Cells(0,0).Text = "产品名称"
rt.Cells(0,1).Text = "单价"
rt.Cells(0,2).Text = "库存量"
rt.Cells(0,3).Text = "订购量"
rt.Cells(0,4).Text = "再订购量"
rt.Cells(0,5).Text = "中止"
rt.rows(0).Style.Borders.Top = New prt.LineDef(1,Color.LightGray)
rt.rows(0).Style.Borders.Bottom = New prt.LineDef(1,Color.LightGray)
Rows = Tables("类别").Rows(i).DataRow.GetChildRows("产品")
For r As integer = 0 To Rows.Count - 1
rt.Cells(r+1,0).Text = rows(r)("产品名称")
rt.Cells(r+1,1).Text = rows(r)("单价")
rt.Cells(r+1,2).Text = rows(r)("库存量")
rt.Cells(r+1,3).Text = rows(r)("订购量")
rt.Cells(r+1,4).Text = rows(r)("再订购量")
If rows(r)("中止") = True Then
Dim rm As New prt.RenderImage
rm.Image = getImage("Check.Ico")
rm.Style.ImageAlign.AlignHorz = prt.ImageAlignHorzEnum.Center
rm.Style.ImageAlign.StretchHorz = False
rm.Style.ImageAlign.StretchVert = False
rt.Cells(r+1,5).RenderObject = rm
End If
Next
doc.Body.Children.Add(rt)
rx = New prt.RenderText
rx.Style.FontBold = True
rx.Style.Spacing.Top = 3
rx.Text = "产品数目: " & Rows.Count
rx.Style.TextAlignHorz = prt.AlignHorzEnum.Right
doc.Body.Children.Add(rx)
Next
doc.Preview
这里: rx.Text = "产品数目: " & Rows.Count,求的是产品数目,如果要求选定类别的产品的库存量,公式该怎么写