Exception on XMLDocument.LoadXml only for specific iso characters

Question

I am using Windows.Data.Xml.Dom.XmlDocument to parse an xml string.

The code is simple

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xmlString);

The problem is that it throws an exception when it encounters some specific characters. An example is below. (Yes the XML I am parsing is actually html but it has to be parsed as XML)

This string throws the exception

<div>So schnell. So vielf&auml;ltig. Soo lecker!</div>

These do not

<div>So schnell. So vielfltig. Soo lecker!</div>

<div>So schnell. So vielf&lt;ltig. Soo lecker!</div>

These are the message and type of the exception.
Exception from HRESULT: 0xC00CE002 System.Exception

I don't know why only specific characters trigger the exception. Can anybody help?

Answer 1

Xml does not support all html characters and the character you mentioned is an html character. Supported character list for xml and html : https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML

Xml only supports quot amp apos lt gt
You will have to use hex value of the other special characters in order for them to be loaded as xml.