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at the moment im loading xml and i am getting error:

System.Xml.XmlException: ' ', hexadecimal value 0x17, is an invalid character. Line 2762, position 16.

it is easy to fix. just open xml and remove the character.

but I need to know is it possible to load xml even with invalid characters and use it for parsing. and is there any downside?

xml example:

<?xml version="1.0" encoding="UTF-8"?>
<all>
<sub>
    <summary>this is summary and it might have some invalid chars</summary>
</sub>
<sub>
    <summary>this one is ok</summary>
</sub>
</all>
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  • can you show us the XML in question?? Commented Mar 12, 2010 at 6:19

2 Answers 2

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Xml with invalid characters in it is not xml. It could be an isolated glitch, or it could be a portent that there is significant data corruption throughout the file - some which manifests as invalid characters (breaking standard readers), and some which silently damages your data without you noticing.

I would treat the entire thing as suspect (i.e. reject it) and get it fixed at source.

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not sure exactly how it works in c# but if you could some how get it to parse an xml from a 'string' not a file, you could first load the file into a 'string' filter the string yourself, then send it off for xml parsing.

Edit:

maybe 'string' is a poor choice, as the corrupt data might have NULLs in it ect, A byte array or some other generic memory stream structure?

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yes it is possible and im using it for now thx. LoadXml(string xml);

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