.net - Reference to undeclared entity 'nbsp' while reading xml from URL in c#?

Question

    XmlDocument xmldoc = new XmlDocument();
    xmldoc.XmlResolver = null;

    xmldoc.Load("URL");
    XmlWriter xmlWrite = XmlWriter.Create(@Server.MapPath("Test.xml"));
    xmldoc.Save(xmlWrite);
    xmlWrite.Close();

Above is the code I am using to read an XML file. The XML I am loading contains entities like nbsp; and because of that, the code is throwing an XMLException:

Reference to undeclared entity 'nbsp'

Answer 1

There are two ways to handle this, but for both you need to make changes to the input file.

1) Change your   to   in you input files. It is always better to use Unicode and avoid readable entities in XML documents. Use plain Unicode characters or their numerical form.

2) If you still need/want to use   You can declare a custom doctype in the file that will do the conversion for you:

<!DOCTYPE doctypeName [
   <!ENTITY nbsp "&#160;">
]> 

This problem is coming because   isn't one of XMLs predefined entities.