vb.net - 如何使用VB和itextsharp在标题页面后在固定点添加表格
问题描述
我有以下代码创建两个标题表和一个要遵循的表。我无法在标题之后立即插入下表。它们都从页面顶部开始，第二个表格应该在灰色标题网格之后立即开始。每一页都必须重复
Public Class Form1
Public Doc As Document
Public wri As PdfWriter
Public fntNormal12 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 12, iTextSharp.text.Font.NORMAL, BaseColor.BLACK)
Public TableGrid As PdfPTable '= New PdfPTable(5)
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Doc = New Document(PageSize.A4, 20, 20, 20, 20)
Dim ev As _events = New _events() ' ora
wri = PdfWriter.GetInstance(Doc, New FileStream("simple2.pdf", FileMode.Create))
' evento per nuova pagina
wri.PageEvent = ev ' ora
Doc.Open()
TableGrid = New PdfPTable(5) ' diventata pubblica
TableGrid.WidthPercentage = 100 ' Table size is set to 100% of the page
TableGrid.HorizontalAlignment = 0 '0=left, 1=centre , 2 = right
TableGrid.SpacingAfter = 10 ' mette uno spazio di 10 , dopo
Dim TableGridWidths(4) As Single
TableGridWidths(0) = 150 ' se li metto tutti e 3 uguali è come se faccio il 33%
TableGridWidths(1) = 200
TableGridWidths(2) = 500
TableGridWidths(3) = 50
TableGridWidths(4) = 100
TableGrid.SetWidths(TableGridWidths) ' Set the column widths on table creation. Unlike HTML cells cannot be sized.
Try
For i = 0 To 100
'2° riga verde
Dim GrillCell1 As New PdfPCell(New Phrase("Pos." & i, fntNormal12))
'CellOne.Rotation = -90 ' inclina il testo
GrillCell1.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
TableGrid.AddCell(GrillCell1)
Dim GrillCell2 As New PdfPCell(New Phrase("PS" & i, fntNormal12))
'CellTwo.Border = 0
GrillCell2.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
TableGrid.AddCell(GrillCell2)
Dim GrillCell3 As New PdfPCell(New Phrase("DDDDDDDDDDDD" & i, fntNormal12))
GrillCell3.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
TableGrid.AddCell(GrillCell3)
Dim GrillCell4 As New PdfPCell(New Phrase(i, fntNormal12))
GrillCell4.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
TableGrid.AddCell(GrillCell4)
Dim GrillCell5 As New PdfPCell(New Phrase(i, fntNormal12))
GrillCell5.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
TableGrid.AddCell(GrillCell5)
Next i
Doc.Add(TableGrid)
Catch ex As Exception
MsgBox(ex.ToString)
Doc.Close()
End Try
Doc.Close()
Process.Start("simple2.pdf")
End Sub
End Class
Class _events
Inherits PdfPageEventHelper
Public Vvv = "VVV11111"
Public Ppp = "PPP 11111"
Public Vv = "VV 11111"
Public Ggg = "GGG 11111"
Public Pppp = "3333"
Public Ttt = "tttttttttt"
Public myTable As PdfPTable
Public myTableBC As PdfPTable
Public TableGridInt As PdfPTable '= New PdfPTable(5)
Public Logo = "tttttttttt"
'Public logo = iTextSharp.text.Image.GetInstance(Application.StartupPath & "\" & "MioLogo.jpg")
' settaggio intestazione
Public fntBOLD18 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 18, iTextSharp.text.Font.BOLD, BaseColor.BLACK)
' altro settaggio verde
Public fntBOLD12 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 12, iTextSharp.text.Font.BOLD, BaseColor.BLACK)
Public fntBOLD8 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 8, iTextSharp.text.Font.BOLD, BaseColor.BLACK)
' altro settaggio verde
Public fntNormal18 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 18, iTextSharp.text.Font.NORMAL, BaseColor.BLACK)
Public fntNormal12 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 12, iTextSharp.text.Font.NORMAL, BaseColor.BLACK)
Public fntNormal8 As iTextSharp.text.Font = FontFactory.GetFont("Arial", 8, iTextSharp.text.Font.NORMAL, BaseColor.BLACK)
Public Overrides Sub OnEndPage(ByVal writer As PdfWriter, ByVal document As Document)
myTable = New PdfPTable(4)
myTable.WidthPercentage = 100 ' Table size is set to 100% of the page
myTable.HorizontalAlignment = 0 '0=left, 1=centre , 2 = right
myTable.SpacingAfter = 10 ' mette uno spazio di 10 , dopo
Dim sglTblHdWidths(3) As Single
sglTblHdWidths(0) = 150 ' se li metto tutti e 3 uguali è come se faccio il 33%
sglTblHdWidths(1) = 580
sglTblHdWidths(2) = 140
sglTblHdWidths(3) = 130
myTable.SetWidths(sglTblHdWidths) ' Set the column widths on table creation. Unlike HTML cells cannot be sized.
myTable.AddCell(logo)
Dim CellTwoHdr As New PdfPCell(New Phrase("Mia Stampa", fntBOLD18)) ' font intestazione rosso
CellTwoHdr.HorizontalAlignment = 1
myTable.AddCell(CellTwoHdr)
Dim CellTreeHdr As New PdfPCell(New Phrase(("38 38 "), fntBOLD12)) ' font intestazione rosso
myTable.AddCell(CellTreeHdr)
Dim Cell4Hdr As New PdfPCell(New Phrase(("Mio canale: " & " 34"), fntNormal8)) ' font intestazione rosso
Cell4Hdr.HorizontalAlignment = 2
Cell4Hdr.VerticalAlignment = 2 ' non funziona
myTable.AddCell(Cell4Hdr)
'2° riga verde
Dim CellOne As New PdfPCell(New Phrase("PROVA", fntNormal12))
'CellOne.Rotation = -90 ' inclina il testo
myTable.AddCell(CellOne)
Dim CellTwo As New PdfPCell(New Phrase("", fntNormal8))
'CellTwo.Border = 0
myTable.AddCell(CellTwo)
Dim CellTree As New PdfPCell(New Phrase(Now, fntNormal8))
myTable.AddCell(CellTree)
Dim Cell4 As New PdfPCell(New Phrase("p di p ", fntNormal8))
Cell4.HorizontalAlignment = 2
myTable.AddCell(Cell4)
document.Add(myTable)
TableGridInt = New PdfPTable(5) ' diventata pubblica
TableGridInt.WidthPercentage = 100 ' Table size is set to 100% of the page
TableGridInt.HorizontalAlignment = 0 '0=left, 1=centre , 2 = right
TableGridInt.SpacingAfter = 10 ' mette uno spazio di 10 , dopo
Dim TableGridWidths(4) As Single
TableGridWidths(0) = 150 ' se li metto tutti e 3 uguali è come se faccio il 33%
TableGridWidths(1) = 200
TableGridWidths(2) = 500
TableGridWidths(3) = 50
TableGridWidths(4) = 100
TableGridInt.SetWidths(TableGridWidths) ' Set the column widths on table creation. Unlike HTML cells cannot be sized.
'2° riga verde
Dim IntCol1 As New PdfPCell(New Phrase("Point1", fntBOLD8))
'CellOne.Rotation = -90 ' inclina il testo
IntCol1.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
IntCol1.BackgroundColor = BaseColor.LIGHT_GRAY
TableGridInt.AddCell(IntCol1)
Dim IntCol2 As New PdfPCell(New Phrase("Pt2", fntBOLD8))
'CellTwo.Border = 0
IntCol2.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
IntCol2.BackgroundColor = BaseColor.LIGHT_GRAY
TableGridInt.AddCell(IntCol2)
Dim IntCol3 As New PdfPCell(New Phrase("Des", fntBOLD8))
IntCol3.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
IntCol3.BackgroundColor = BaseColor.LIGHT_GRAY
TableGridInt.AddCell(IntCol3)
Dim IntCol4 As New PdfPCell(New Phrase("Q.", fntBOLD8))
IntCol4.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
IntCol4.BackgroundColor = BaseColor.LIGHT_GRAY
TableGridInt.AddCell(IntCol4)
Dim IntCol5 As New PdfPCell(New Phrase("Point5", fntBOLD8))
IntCol5.HorizontalAlignment = 1 '0=left, 1=centre , 2 = right
IntCol5.BackgroundColor = BaseColor.LIGHT_GRAY
TableGridInt.AddCell(IntCol5)
document.Add(TableGridInt)
End Sub
我已经尝试过使用 WriteSelectedRows 方法，但结果是它永远不会进入 OnEndPage 事件，因此我最多有大约 28 或 30 个表行，而不是其他行。
那可能是什么问题？
解决方案
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