How Do You Ignore Illegal Characters In An XmlDocument?

[Louix]

Hi,

I'm trying to read quite a large (7mb) XML file which has quite a lot of illegal characters in it. How do I ignore them or ignore the run-time exceptions?

Thanks

Louix

[DeanMc]

I dunno if this would work but its just a thought, I would read the file as a text document into a string variable and regex.replace() whatever needed to be changed to make the document "valid" then save and re-read.

[Louix]

I have this code which uses RegEx, but it doesn't work:

   
        String xmlFile = File.ReadAllText("myfile.xml"));

       string xmlFileFinal = Regex.Replace(xmlFile, "#x((10?|[2-F])FFF[EF]|FDD[0-9A-F]|7F|8[0-46-9A-F]9[0-9A-F])", "", RegexOptions.IgnoreCase);
 
        XmlDocument doc = new XmlDocument();

     
        doc.LoadXml(xmlFileFinal);

[DeanMc]

I'd need the XML file to verify your regex string or you could google regex buddy. It is a program that will help you verify your regex. That will show you if it is your regex that is wrong.

[Louix]

I'm not allowed to give you the XML file but I can tell you that I'm using XML 1.0 and my RegEx looks like this:

#x((10?|[2-F])FFF[EF]|FDD[0-9A-F]|7F|8[0-46-9A-F]9[0-9A-F])

[Arrow_Raider]

Can you tell us why the xml file has illegal characters in it? That seems like a very odd situation. If the file is corrupted or something, removing the illegal characters won't fix it.

[Louix]

We are converting a CSV file from our product supplier to XML. The CSV file already has some illegal characters in it, so they get passed through when we convert it. Any way to ignore these exceptions and continue reading the file?

[Louix]

I found the solution!!

http://seattlesoftware.wordpress.com...lid-character/

Very handy!!

Thank you for your help guys