C# XmlWriter Syntax To Write Multiple Namespace Tags

Question

I am attempting to write the following line with C#'s XmlWriter.

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:set="http://www.sitecore.net/xmlconfig/set/">

I seem to only seem have an option to write on xmlns (and then with no :suffix), when using the xmlWriter.WriteStartElement method.

Is it possible to do with XmlWriter?

have you tried XmlWriter.WriteStartElement Method (String, String, String) ? — Joshua
– Joshua, Commented Jun 18, 2015 at 18:13
Yes, but it doesn't work. Attribute 1 looks for a "prefix" which gets added before the element name and after the xmlns: This obviously doesn't work. Nor does it allow you to specify two xmlns attributes. — eat-sleep-code
– eat-sleep-code, Commented Jun 18, 2015 at 22:02

Joshua · Accepted Answer · 2015-06-22 18:11:30Z

1

Would this help? Adjusted to use LookupPrefix.

writer = XmlWriter.Create(sw);
writer.WriteStartElement("configuration");
writer.WriteAttributeString("xmlns", "patch", null, "http://www.sitecore.net/xmlconfig/");
writer.WriteAttributeString("xmlns", "set", null, "http://www.sitecore.net/xmlconfig/set/");
writer.WriteEndElement();
writer.Flush();
writer.Close();

outputs:

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:set="http://www.sitecore.net/xmlconfig/set/" />

edited Jun 22, 2015 at 18:11

answered Jun 22, 2015 at 14:19

Joshua

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3 Comments

eat-sleep-code Over a year ago

But since both need to be preceded by xmlns: that wouldn't work. I would end up with <configuration xmlns:patch="sitecore.net/xmlconfig" xmlns:xmlns="namespace" /> which obviously won't work, since that last "xmlns" should say "set" instead. Oh yeah, and the second one's value should be another URL.

Joshua Over a year ago

@eat-sleep-code Tweeked it a bit. looking up the prefix seems to function better.

Joshua Over a year ago

My bad, didn't see the requirement for xmlns, seems closer though.

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