Output XML non-breaking space (#160) from code

[James Thurley]

I have an XmlDocument object, and need to output the   entity from
my code. I potentially need to output other similar entities such as
£ for the GBP sign.

Here is some example code:

//-----------------
XmlDocument doc = new XmlDocument();
XmlElement testElement = doc.CreateEleme nt("test");
doc.AppendChild (testElement);

XmlNode spaceNode = doc.CreateEntit yReference("160 ");

testElement.App endChild(spaceN ode);
StringWriter sw = new StringWriter();
XmlWriter xw = new XmlTextWriter(s w);
doc.WriteConten tTo(xw);
//-----------------

So far I have tried:

// Produces "  "
doc.CreateTextN ode(" ");

// Produces "&# 160;
doc.CreateTextN ode("  ");

// Exception: "Cannot create an EntityReference node with a name
// starting with '#'."
doc.CreateEntit yReference("#16 0");

// Exception: "There is an invalid name character in 160"
doc.CreateEntit yReference("160 ");

It's frustratingly hard just to put " " into my XML document...
Have I missed something obvious?

Thanks,
James.