Problems with UTF-8 in StringReader

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Hi,
I am trying to make a invoce with HTML to PDF but have troubles when i have unicode characters like: ПРОБАСДАСасда or in the code this one> КОСТАДИН СТОЈЧЕВ and this characters arent shown in the pdf doc. here is the code so pls gude me how to fix this.

XML

try
        {

            var document = new Document(PageSize.A4, 50, 50, 25, 25);
            PdfWriter pdfWriter = PdfWriter.GetInstance(document, new FileStream(Request.PhysicalApplicationPath + "\\Invoice_Statement.pdf", FileMode.Create));
            document.Open();
            document.AddAuthor("");
            document.AddCreator("Creator of the Doc");
            document.AddSubject("Subject of the Doc");
            document.AddCreationDate();
            document.AddTitle("This is the title");
            //SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
            //SAXmyHtmlHandler shh = new SAXmyHtmlHandler(document);
            HTMLWorker htmlWorker = new HTMLWorker(document);
            String str = "<html><head><meta http-equiv='Content-Type' content='text/html;charset=utf-8'><title><img src='C:/Users/Kosta/Desktop/Vmedia Own Projects/Prodavnicata/eMall/Dodatoci za Master/images/logo.png' alt='Smiley face' height='42' width='42'></title></head><body><table><tr><td><p style='font-size: 10pt; font-family: Times'>" +
            "Cher Monsieur,</p><br><p align='justify' style='text-indent: 2em; font-size: 10pt; font-family: Times'>" +
            "КОСТАДИН СТОЈЧЕВ<br></p><p align='justify' style='text-indent: 2em; font-size: 10pt; font-family: Times'>" +
            "En vous remerciant &agrave; nouveau de la confiance que vous nous t&eacute;moignez,</p>" +
            "<br><p style='font-size: 10pt; font-family: Times'>Bien Cordialement,<br>" +
            "<br>ADMINISTRATEUR ADMINISTRATEUR<br>Ligne directe : 04 42 91 52 10<br>Acadomia&reg; – " +
            "37 BD Aristide Briand  – 13100 Aix en Provence  </p></td></tr></table></body></html>";



            htmlWorker.Parse(new StringReader(str));
            document.Close();
        }
        catch (DocumentException err)
        {

        }
        catch (FileNotFoundException ex)
        {

        }

        catch (IOException exx)
        {
        }

Posted 18-Jun-13 5:37am

thekoko89

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Sergey Alexandrovich Kryukov 18-Jun-13 12:11pm

Just a note: string reader has nothing to do with UTFs, it just holds strings. Internal string representation in memory uses UTF-16LE, but you should never use this fact. For you, this is abstract Unicode, abstracted from bitwise representation.
—SA

thekoko89 18-Jun-13 12:15pm

mhm tnx for clearing that to me :) do you have some solution how to make this working?

Sergey Alexandrovich Kryukov 18-Jun-13 12:21pm

Sorry, I don't know what PFD required. From what I know, its Unicode support is quite awkward.
But where is PDF in your code? I can see only HTML, which is of course not a problem at all.
—SA

thekoko89 18-Jun-13 12:28pm

The PDF documet is created from the HTML. It would be great to use that HTML. In the HTML have Cyrillic letters and if that shows on the pdf then i can make the rest of the changes. Tnx

Sergey Alexandrovich Kryukov 18-Jun-13 12:30pm

OK, did you obtain correct HTML? You could test it if you, say, saved your HTML string to file in UTF-8. (It should be the encoding of your StreamReader to use.)
—SA

thekoko89 18-Jun-13 12:33pm

the code save the PDF from the HTML. You want me to save the HTML in text file and call the file from the String reader?

Sergey Alexandrovich Kryukov 18-Jun-13 13:03pm

No, I just say that you save HTML in file this way, it will work properly. However, what does not seem to make any sense is that your content in hard-coded in C#. Or is it just for experiment?
—SA

thekoko89 18-Jun-13 13:12pm

i need it to create an invoice document so i will need Cyrillic characters... so that code works perfectly with standard characters but Cyrillic characters are missing

charles henington 18-Jun-13 19:33pm

check my solution if it's what your looking for mark the solution as answered. If your looking for a StringReader that reads cyrillic text you can inherit from StringReader class and load the text as Cyrillic using Encoding.UTF8. I would suggest using StringBuilder to first build the string then load into StringReader. Happy Coding

thekoko89 18-Jun-13 20:01pm

thanks pall i find solution i post it but i will check your solution too

2 solutions

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charles henington · Answer 1 · 2013-06-18T11:38:00

Here are a couple samples. Example A is a simple class that will store the cyrillic output and return the string in the ToString() using override. If you want to use StringReader class you could always inherit from StringReader as shown in Example B.

Example A:

C#

public class MyStringReader
    {
        private String str;
        private Encoding encoding = Encoding.UTF8;

        public Encoding Encoding
        {
            get
            {
                return this.encoding;
            }
            set
            {
                if (value != null)
                {
                    this.encoding = value;
                }
            }
        }
        public MyStringReader(string str)
        {
            this.str = this.encoding.GetString(this.encoding.GetBytes(str));            
        }
        public override string ToString()
        {
            return this.str;
        }
    }

Example B:

C#

public sealed class CyrillicTextReader : StringReader
    {
        public CyrillicTextReader(string text)
            : base(LoadCyrillicText(text))
        {
        }
        private static string LoadCyrillicText(string text)
        {
            return Encoding.UTF8.GetString(Encoding.UTF8.GetBytes(text));
        }
    }

thekoko89 · Answer 2 · 2013-06-18T14:00:00

I fix it :))))) finally the code below works perfectly. The main problem was that it needed a font

XML

string html = @"<html><body><img src='C:/Users/Kosta/Desktop/Vmedia Own Projects/Prodavnicata/eMall/Dodatoci za Master/images/logo.png' alt='Smiley face' height='42' width='42'><table><tr><td><p style='font-size: 10pt; font-family: Times'>" +
           "Cher Monsieur,</p><br><p>" +
           "КОСТА<br></p><p align='justify' style='text-indent: 2em; font-size: 10pt; font-family: Times'>" +
           "En vous remerciant &agrave; nouveau de la confiance que vous nous t&eacute;moignez,</p>" +
           "<br><p style='font-size: 10pt; font-family: Times'>Bien Cordialement,<br>" +
           "<br>ADMINISTRATEUR ADMINISTRATEUR<br>Ligne directe : 04 42 91 52 10<br>Acadomia&reg; – " +
           "37 BD Aristide Briand  – 13100 Aix en Provence  </p></td></tr></table></body></html>";


       FontFactory.Register("c:/windows/fonts/ARIALUNI.TTF");
       StyleSheet style = new StyleSheet();
       style.LoadTagStyle("body", "face", "Arial Unicode MS");
       style.LoadTagStyle("body", "encoding", BaseFont.IDENTITY_H);
       using (Document document = new Document())
       {
           PdfWriter pdfWriter = PdfWriter.GetInstance(document, new FileStream(Request.PhysicalApplicationPath + "\\Invoice_Statement.pdf", FileMode.Create));
           document.Open();
           foreach (IElement element in HTMLWorker.ParseToList(
               new StringReader(html.ToString()), style))
           {
               document.Add(element);
           }
       }

Problems with UTF-8 in StringReader

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