Add attributes to root XML Node

[ijustlovemath]

I have seen this discussion, and the methodology doesn't seem to translate: https://forums.ni.com/t5/LabVIEW/XML-Attribute/td-p/791406

I'd like to set the attributes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" and xsi:schemaLocation="/path/to/schema" in the root node. The original XML is here:

<?xml version="1.0" encoding="utf-8"?>
<root xmlns="http://example.com/XMLSchema/schema.xsd">
<child/>
</root>

The desired XML is here:

<?xml version="1.0" encoding="utf-8"?>
<root xmlns="http://example.com/XMLSchema/schema.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="C:\path\to\schema http://example.com/XMLSchema/schema.xsd">
<child/>
</root>

My attempt (one of many, definitely wrong) is here:

[ijustlovemath · Accepted solution]

Instead of trying to add or replace nodes, you can simply get the document from the "updated" node.

There is an errata here. The order of the xsi:schemaLocation value should be namespace, path, NOT path,namespace as the snippet shows. I've updated it in my code, but it's minor enough that I'll be keeping it in this post.