Question

I have a question. Is it possible to navigate to an specific field in an xml and add elements to it?

I tried this:

XDocument doc = XDocument.Load("myxmldoc.xml");

doc.Element("Table").Element(Product).CreateNavigator().Add(new XElement("Lamp", "Lamp"));

Needless to say it didn’t work. The thing is that I have an xml that looks like this:

<Table>
    <Product>
        <Chair/>
        <Table/>
        <ChessBoard/>
    </Product>
    <Product>
        <Chair/>
        <Table/>
        <ChessBoard/>
    </Product>
    <Product>
        <Chair/>
        <Table/>
        <ChessBoard/>
    </Product>
</Table>

As you can see I have many Product tags and I want to be able to add the item Lamp to an specific node with linq. Every time I add elements with:

doc.Element("Table").Element("Porduct").Add(new XElement("Lamp", "Lamp"));

The Lamp element goes to the first Product node. I want it to go to an specific node, let’s say the second one.

Someone advised me to use:

doc.Element("Table").Element("Porduct").ElementAt(2).Add(new XElement("Lamp", "Lamp"));

But it doesn’t work. Visual Studio 2010 says it doesn’t exist.

Answer 1

You need Elements("Porduct") (note the s) to use ElementAt() :

  doc.Element("Table").Elements("Porduct").ElementAt(2).Add(...);

It would be a little easier if the Products had something to identify them, like an ID attribute.

(And probably you should fix the typo Porduct / Product)