I want to create a .docx document (Word 2007 and 2010) with OpenXML in C++/CLI
I use this code for generate the document:
WordprocessingDocument^ wordDoc = WordprocessingDocument::Create("C:\\...\MyFile.docx", WordprocessingDocumentType::Document);
MainDocumentPart^ mainPart = wordDoc->AddMainDocumentPart();
Document^ elt = gcnew Document( gcnew Body( gcnew Paragraph( gcnew Run( gcnew DocumentFormat::OpenXml::Wordprocessing::Text("Hello !") ) ) ) );
elt->Save(mainPart);
mainPart->Document->Save();
wordDoc->Close();
The file is created but it is empty.
If I write this code in C#, the file is good and it contains the text.
Why my code in C++/cli, create the file (MyFile.docx) with no text?
I repro this problem. Not sure what is going on, this syntax is documented to work. It works properly when you write the code explicitly, using the AppendChild() method. Like this:
WordprocessingDocument^ wordDoc = WordprocessingDocument::Create("C:\\temp\\MyFile.docx", WordprocessingDocumentType::Document);
MainDocumentPart^ mainPart = wordDoc->AddMainDocumentPart();
mainPart->Document = gcnew Document;
Body^ body = mainPart->Document->AppendChild(gcnew Body);
Paragraph^ para = body->AppendChild(gcnew Paragraph);
Run^ run = para->AppendChild(gcnew Run);
run->AppendChild(gcnew DocumentFormat::OpenXml::Wordprocessing::Text("Hello !"));
delete wordDoc;
Related
I have a full.docx which includes two math questions, the docx embeds some pictures and MathType equation (oleobject), I split the doc according to this, get two files (first.docx, second.docx) , first.docx works fine, the second.docx, however, pops up a warning dialog when I try to open it:
"Word found unreadable content in second.docx. Do you want to recover the contents of this document? If you trust the source of this document, click Yes."
After click "Yes", the doc can be opened, the content is also correct, I want to know what is wrong with the second.docx? I have checked it with "Open xml sdk 2.5 productivity tool", but found no reason. Very appreciated for any help. Thanks.
The three files have been uploaded to here.
Show some code:
byte[] templateBytes = System.IO.File.ReadAllBytes(TEMPLATE_YANG_FILE);
using (MemoryStream templateStream = new MemoryStream())
{
templateStream.Write(templateBytes, 0, (int)templateBytes.Length);
string guidStr = Guid.NewGuid().ToString();
using (WordprocessingDocument document = WordprocessingDocument.Open(templateStream, true))
{
document.ChangeDocumentType(DocumentFormat.OpenXml.WordprocessingDocumentType.Document);
MainDocumentPart mainPart = document.MainDocumentPart;
mainPart.Document = new Document();
Body bd = new Body();
foreach (DocumentFormat.OpenXml.Wordprocessing.Paragraph clonedParagrph in lst)
{
bd.AppendChild<DocumentFormat.OpenXml.Wordprocessing.Paragraph>(clonedParagrph);
clonedParagrph.Descendants<Blip>().ToList().ForEach(blip =>
{
var newRelation = document.CopyImage(blip.Embed, this.wordDocument);
blip.Embed = newRelation;
});
clonedParagrph.Descendants<DocumentFormat.OpenXml.Vml.ImageData>().ToList().ForEach(imageData =>
{
var newRelation = document.CopyImage(imageData.RelationshipId, this.wordDocument);
imageData.RelationshipId = newRelation;
});
}
mainPart.Document.Body = bd;
mainPart.Document.Save();
}
string subDocFile = System.IO.Path.Combine(this.outDir, guidStr + ".docx");
this.subWordFileLst.Add(subDocFile);
File.WriteAllBytes(subDocFile, templateStream.ToArray());
}
the lst contains Paragraph cloned from original docx using:
(DocumentFormat.OpenXml.Wordprocessing.Paragraph)p.Clone();
Using productivity tool, found oleobjectx.bin not copied, so I add below code after copy Blip and ImageData:
clonedParagrph.Descendants<OleObject>().ToList().ForEach(ole =>
{
var newRelation = document.CopyOleObject(ole.Id, this.wordDocument);
ole.Id = newRelation;
});
Solved the issue.
I have multiple copies of a .pdf document that are commented by different users. I would like to merge all these comments into a new pdf "merged".
I wrote this sub inside a class called document with properties "path" and "directory".
Public Sub MergeComments(ByVal pdfDocuments As String())
Dim oSavePath As String = Directory & "\" & FileName & "_Merged.pdf"
Dim oPDFdocument As New iText.Kernel.Pdf.PdfDocument(New PdfReader(Path),
New PdfWriter(New IO.FileStream(oSavePath, IO.FileMode.Create)))
For Each oFile As String In pdfDocuments
Dim oSecundairyPDFdocument As New iText.Kernel.Pdf.PdfDocument(New PdfReader(oFile))
Dim oAnnotations As New PDFannotations
For i As Integer = 1 To oSecundairyPDFdocument.GetNumberOfPages
Dim pdfPage As PdfPage = oSecundairyPDFdocument.GetPage(i)
For Each oAnnotation As Annot.PdfAnnotation In pdfPage.GetAnnotations()
oPDFdocument.GetPage(i).AddAnnotation(oAnnotation)
Next
Next
Next
oPDFdocument.Close()
End Sub
This code results in an exception that I am failing to solve.
iText.Kernel.PdfException: 'Pdf indirect object belongs to other PDF document. Copy object to current pdf document.'
What do I need to change in order to perform this task? Or am I completely off with my code block?
You need to explicitly copy the underlying PDF object to the destination document. After that you will be easily able to add that object to the list of page annotations.
Instead of adding the annotation directly:
oPDFdocument.GetPage(i).AddAnnotation(oAnnotation)
Copy the object to the destination document first, wrap it into PdfAnnotation class with makeAnnotation method and then add it as usual. Code is in Java but you will easily be able to convert it into VB:
PdfObject annotObject = oAnnotation.getPdfObject().copyTo(pdfDocument);
pdfDocument.getPage(i).addAnnotation(PdfAnnotation.makeAnnotation(annotObject));
Here is a working Java code, with annotations copied from one document to other using the copyTo method.
PdfReader reader = new PdfReader(new
RandomAccessSourceFactory().createBestSource(sourceFileName), null);
PdfDocument document = new PdfDocument(reader);
PdfReader toMergeReader = new PdfReader(new RandomAccessSourceFactory().createBestSource(targetFileName), null);
PdfDocument toMergeDocument = new PdfDocument(toMergeReader);
PdfWriter writer = new PdfWriter(targetFileName + "_MergedVersion.pdf");
PdfDocument writeDocument = new PdfDocument(writer);
int pageCount = toMergeDocument.getNumberOfPages();
for (int i = 1; i <= pageCount; i++) {
PdfPage page = document.getPage(i);
writeDocument.addPage(page.copyTo(writeDocument));
PdfPage pdfPage = toMergeDocument.getPage(i);
List<PdfAnnotation> pageAnnots = pdfPage.getAnnotations();
if (pageAnnots != null) {
for (PdfAnnotation pdfAnnotation : pageAnnots) {
PdfObject annotObject = pdfAnnotation.getPdfObject().copyTo(writeDocument);
writeDocument.getPage(i).addAnnotation(PdfAnnotation.makeAnnotation(annotObject));
}
}
}
reader.close();
toMergeReader.close();
toMergeDocument.close();
document.close();
writeDocument.close();
writer.close();
I am trying to use the iText library with c# to capture the text portion of pdf files.
I created a pdf from excel 2013 (exported) and then copied the sample from the web of how to use itext (added the lib ref to the project).
It reads perfectly the first page but it gets garbled info after that. It is keeping part of the first page and merging the info with the next page. The commented lines is when I was trying to solve the problem, the string "thePage" is recreated inside the for loop.
Here is the code. I can email the pdf to whoever can help with this issue.
Thanks in advance
public static string ExtractTextFromPdf(string path)
{
ITextExtractionStrategy its = new iTextSharp.text.pdf.parser.LocationTextExtractionStrategy();
using (PdfReader reader = new PdfReader(path))
{
StringBuilder text = new StringBuilder();
//string[] theLines;
//theLines = new string[COLUMNS];
//string thePage;
for (int i = 1; i <= reader.NumberOfPages; i++)
{
string thePage = "";
thePage = PdfTextExtractor.GetTextFromPage(reader, i, its);
string [] theLines = thePage.Split('\n');
foreach (var theLine in theLines)
{
text.AppendLine(theLine);
}
// text.AppendLine(" ");
// Array.Clear(theLines, 0, theLines.Length);
// thePage = "";
}
return text.ToString();
}
}
A strategy object collects text data and does not know if a new page has started or not.
Thus, use a new strategy object for each page.
i am a new member an i really like this site because it help me always
my problem is
i want replace word document using openxml and add a page break
end then i want to write replaced text second page
here my codes
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(#"d:\a.docx", true))
{
using (StreamReader reader = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
text = reader.ReadToEnd();
}
Regex regexText = new Regex("#db#");
text = regexText.Replace(text, textBox4.Text.Trim());
using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
{
sw.Write(text);
}
MainDocumentPart mainPart = wordDoc.MainDocumentPart;
Run r = new Run();
Paragraph para = new Paragraph(new Run(new Break() { Type = BreakValues.Page }));
using (StreamWriter sw1 = new StreamWriter(mainPart.GetStream(FileMode.Create)))
{
sw1.Write(text);
}
mainPart.Document.Body.InsertAfter(para, mainPart.Document.Body.LastChild);
mainPart.Document.Save();
}
}
I suggest you insert a page break in your a.docx in advance. Then, use MergeField to locate where you want to replace with.
Here is the example
To load XML files with arbitrary encoding I have the following code:
Encoding encoding;
using (var reader = new XmlTextReader(filepath))
{
reader.MoveToContent();
encoding = reader.Encoding;
}
var settings = new XmlReaderSettings { NameTable = new NameTable() };
var xmlns = new XmlNamespaceManager(settings.NameTable);
var context = new XmlParserContext(null, xmlns, "", XmlSpace.Default,
encoding);
using (var reader = XmlReader.Create(filepath, settings, context))
{
return XElement.Load(reader);
}
This works, but it seems a bit inefficient to open the file twice. Is there a better way to detect the encoding such that I can do:
Open file
Detect encoding
Read XML into an XElement
Close file
Ok, I should have thought of this earlier. Both XmlTextReader (which gives us the Encoding) and XmlReader.Create (which allows us to specify encoding) accepts a Stream. So how about first opening a FileStream and then use this with both XmlTextReader and XmlReader, like this:
using (var txtreader = new FileStream(filepath, FileMode.Open))
{
using (var xmlreader = new XmlTextReader(txtreader))
{
// Read in the encoding info
xmlreader.MoveToContent();
var encoding = xmlreader.Encoding;
// Rewind to the beginning
txtreader.Seek(0, SeekOrigin.Begin);
var settings = new XmlReaderSettings { NameTable = new NameTable() };
var xmlns = new XmlNamespaceManager(settings.NameTable);
var context = new XmlParserContext(null, xmlns, "", XmlSpace.Default,
encoding);
using (var reader = XmlReader.Create(txtreader, settings, context))
{
return XElement.Load(reader);
}
}
}
This works like a charm. Reading XML files in an encoding independent way should have been more elegant but at least I'm getting away with only one file open.
Another option, quite simple, is to use Linq to XML. The Load method automatically reads the encoding from the xml file. You can then get the encoder value by using the XDeclaration.Encoding property.
An example from MSDN:
// Create the document
XDocument encodedDoc16 = new XDocument(
new XDeclaration("1.0", "utf-16", "yes"),
new XElement("Root", "Content")
);
encodedDoc16.Save("EncodedUtf16.xml");
Console.WriteLine("Encoding is:{0}", encodedDoc16.Declaration.Encoding);
Console.WriteLine();
// Read the document
XDocument newDoc16 = XDocument.Load("EncodedUtf16.xml");
Console.WriteLine("Encoded document:");
Console.WriteLine(File.ReadAllText("EncodedUtf16.xml"));
Console.WriteLine();
Console.WriteLine("Encoding of loaded document is:{0}", newDoc16.Declaration.Encoding);
While this may not server the original poster, as he would have to refactor a lot of code, it is useful for someone who has to write new code for their project, or if they think that refactoring is worth it.