我有一个将数据写入PDF文件的程序。我想添加程序的能力，询问用户他们想要上传什么文件，保存时会询问用户他们想要命名的内容以及他们想要保存的位置。我也希望这个程序保存两个文件。原始数据和包含数据的数据。到目前为止这是我的程序
'''公共类Form1
''' <summary>
''' Application main form Load event handler
''' </summary>
''' <param name="sender"></param>
''' <param name="e"></param>
''' <remarks></remarks>
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' Load all field names from template PDF
'ListFieldNames()
' Fill the target PDF form with canned values
FillForm2()
End Sub
''' <summary>
''' List all of the form fields into a textbox. The
''' form fields identified can be used to map each of the
''' fields in a PDF.
''' </summary>
Private Sub ListFieldNames()
Dim pdfTemplate As String = "c:\Temp\PDF\RD108ApplicationForTitle.pdf"
Dim newFile As String = "c:\Temp\PDF\RD108ApplicationForTitle_fw4.pdf"
' title the form
Me.Text += " - " + PdfTemplate
' create a new PDF reader based on the PDF template document
'Dim pdfReader As PdfReader = New PdfReader(pdfTemplate)
Dim pdfReader As New PdfReader(pdfTemplate)
Dim pdfStamper As New PdfStamper(pdfReader, New FileStream( _
newFile, FileMode.Create))
Dim pdfFormFields As AcroFields = pdfStamper.AcroFields
' create and populate a string builder with each of the
' field names available in the subject PDF
Dim sb As New StringBuilder()
Dim intFieldNum As Integer = 1
Dim de As New DictionaryEntry
For Each de In pdfReader.AcroFields.Fields
sb.Append(String.Format("{0} - {1}{2}", intFieldNum, de.Key.ToString() + Environment.NewLine))
pdfFormFields.SetField(de.Key.ToString(), intFieldNum)
intFieldNum = intFieldNum + 1
Next
pdfStamper.FormFlattening = True
pdfStamper.Close()
' Write the string builder's content to the form's textbox
textBox1.Text = sb.ToString()
textBox1.SelectionStart = 0
End Sub
Private Sub FillForm()
Dim pdfTemplate As String = "c:\Temp\PDF\fw4.pdf"
Dim newFile As String = "c:\Temp\PDF\Final_fw4.pdf"
Dim pdfReader As New PdfReader(pdfTemplate)
Dim pdfStamper As New PdfStamper(pdfReader, New FileStream( _
newFile, FileMode.Create))
Dim pdfFormFields As AcroFields = pdfStamper.AcroFields
' set form pdfFormFields
' The first worksheet and W-4 form
pdfFormFields.SetField("f1_01(0)", "1")
pdfFormFields.SetField("f1_02(0)", "1")
pdfFormFields.SetField("f1_03(0)", "1")
pdfFormFields.SetField("f1_04(0)", "8")
pdfFormFields.SetField("f1_05(0)", "0")
pdfFormFields.SetField("f1_06(0)", "1")
pdfFormFields.SetField("f1_07(0)", "16")
pdfFormFields.SetField("f1_08(0)", "28")
pdfFormFields.SetField("f1_09(0)", "Franklin A.")
pdfFormFields.SetField("f1_10(0)", "Benefield")
pdfFormFields.SetField("f1_11(0)", "532")
pdfFormFields.SetField("f1_12(0)", "12")
pdfFormFields.SetField("f1_13(0)", "1234")
' The form's checkboxes
pdfFormFields.SetField("c1_01(0)", "0")
pdfFormFields.SetField("c1_02(0)", "Yes")
pdfFormFields.SetField("c1_03(0)", "0")
pdfFormFields.SetField("c1_04(0)", "Yes")
' The rest of the form pdfFormFields
pdfFormFields.SetField("f1_14(0)", "100 North Cujo Street")
pdfFormFields.SetField("f1_15(0)", "Nome, AK 67201")
pdfFormFields.SetField("f1_16(0)", "9")
pdfFormFields.SetField("f1_17(0)", "10")
pdfFormFields.SetField("f1_18(0)", "11")
pdfFormFields.SetField("f1_19(0)", "Walmart, Nome, AK")
pdfFormFields.SetField("f1_20(0)", "WAL666")
pdfFormFields.SetField("f1_21(0)", "AB")
pdfFormFields.SetField("f1_22(0)", "4321")
' Second Worksheets pdfFormFields
' In order to map the fields, I just pass them a sequential
' number to mark them once I know which field is which, I
' can pass the appropriate value
pdfFormFields.SetField("f2_01(0)", "1")
pdfFormFields.SetField("f2_02(0)", "2")
pdfFormFields.SetField("f2_03(0)", "3")
pdfFormFields.SetField("f2_04(0)", "4")
pdfFormFields.SetField("f2_05(0)", "5")
pdfFormFields.SetField("f2_06(0)", "6")
pdfFormFields.SetField("f2_07(0)", "7")
pdfFormFields.SetField("f2_08(0)", "8")
pdfFormFields.SetField("f2_09(0)", "9")
pdfFormFields.SetField("f2_10(0)", "10")
pdfFormFields.SetField("f2_11(0)", "11")
pdfFormFields.SetField("f2_12(0)", "12")
pdfFormFields.SetField("f2_13(0)", "13")
pdfFormFields.SetField("f2_14(0)", "14")
pdfFormFields.SetField("f2_15(0)", "15")
pdfFormFields.SetField("f2_16(0)", "16")
pdfFormFields.SetField("f2_17(0)", "17")
pdfFormFields.SetField("f2_18(0)", "18")
pdfFormFields.SetField("f2_19(0)", "19")
' report by reading values from completed PDF
Dim sTmp As String = "W-4 Completed for " + pdfFormFields.GetField("f1_09(0)") + " " + _
pdfFormFields.GetField("f1_10(0)")
MessageBox.Show(sTmp, "Finished")
' flatten the form to remove editting options, set it to false
' to leave the form open to subsequent manual edits
pdfStamper.FormFlattening = True
' close the pdf
pdfStamper.Close()
End Sub
Private Sub FillForm2()
Dim pdfTemplate As String = "c:\Temp\PDF\CalbeeBOL.pdf"
Dim newFile As String = "c:\Temp\PDF\CableeBOL_fw4.pdf"
Dim pdfReader As New PdfReader(pdfTemplate)
Dim pdfStamper As New PdfStamper(pdfReader, New FileStream( _
newFile, FileMode.Create))
Dim pdfFormFields As AcroFields = pdfStamper.AcroFields
Dim sb As New StringBuilder()
Dim intFieldNum As Integer = 1
Dim de As New DictionaryEntry
For Each de In pdfReader.AcroFields.Fields
sb.Append(String.Format("{0} - {1}{2}", intFieldNum, de.Key.ToString(), Environment.NewLine))
pdfFormFields.SetField(de.Key.ToString(), intFieldNum)
intFieldNum = intFieldNum + 1
Next
textBox1.Text = sb.ToString()
textBox1.SelectionStart = 0
' set form pdfFormFields
' The first worksheet and W-4 form
' report by reading values from completed PDF
'Dim sTmp As String = "W-4 Completed for " + pdfFormFields.GetField("f1_09(0)") + " " + _
'pdfFormFields.GetField("f1_10(0)")
'MessageBox.Show(sTmp, "Finished")
' flatten the form to remove editting options, set it to false
' to leave the form open to subsequent manual edits
pdfStamper.FormFlattening = True
' close the pdf
pdfStamper.Close()
End Sub
结束班