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Each attribute must have a qualified name that is unique
to the element. And attributes are maintained in the XML tree in the order that they are added to
the element.
The great thing, however, is that working with the XAttribute class is just like working with the
XElement class.
Here??™s how to add an attribute to a simple XML tree during construction:
XElement employee = new XElement("Root",
new XElement("Employee",
new XAttribute("id", "1")
)
);
And here??™s its output:



Just like elements, multiple attributes can be added at one time. For instance, you could add a phone
attribute along with the id attribute, like this:
XElement employee = new XElement("Root",
new XElement("Employee",
new XAttribute("id", "1"),
new XAttribute("phone", "555-555-5555")
)
);
And the output is as follows:



The key to attributes is that they must have a qualified name that is unique to the particular element to
which they are being added.
Unlike the XElement class, the XAttribute class has only a small handful of methods.


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