c# XML add an XML node as a child to a particular other node

Question

I have an XML doc with a structure like this:

<Book>
    <Title title="Door Three"/>
    <Author name ="Patrick"/>
</Book>

<Book>
    <Title title="Light"/>
    <Author name ="Roger"/>
</Book>

I want to be able to melodramatically add XML nodes to this XML in a particular place. Lets say I wanted to add a Link node as a child to the author node where the name is Roger.

I think it's best if the function containing this logic is passed a param for the name to add an XML node under, please advise and what's the code I need to add XML nodes to a certain place in the XML?

Now I am using .AppendChild() method but it doesn't allow for me to specify a parent node to add under...

Can you post the sample code you've already written?

Mike Atlas
– Mike Atlas

2010-05-01 16:14:01 +00:00
Commented May 1, 2010 at 16:14 — Mike Atlas
– Mike Atlas, Commented May 1, 2010 at 16:14

Oded · Accepted Answer · 2010-05-01 16:12:07Z

2

AppendChild will append the node passed in to the node that you invoke it on.

So, if you select the Author node, you can append a new node to it:

XmlNode author = XmlDocument.SelectSingleNode("/Book/Author[@name='Roger']");
author.AppendChild(otherElementToAppend);

answered May 1, 2010 at 16:12

Oded

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3 Comments

kacalapy Over a year ago

how can i dynamically find the node i want to append a child node to? I wanted to add a Link node as a child to the author node where the name is Roger.

kacalapy Over a year ago

if all my xml nodes were all <node name="mike"> and thus started "node" can i traverse every node in my xml with XmlNode author = XmlDocument.SelectSingleNode("//node/Author[@name='Roger']"); author.AppendChild(otherElementToAppend);

Oded Over a year ago

The xpath expression you have would select all Author nodes who have a parent node and an attribute name that is set to Roger. Using SelectSingleNode would return the first such node.

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