How do you find the XPath of XElement?

How do you find the XPath of XElement?

Just add a using to System. Xml….XPath and invoke the following methods:

1. XPathSelectElement : select a single Element.
2. XPathSelectElements : select elements and return as an IEnumerable
3. XPathEvaluate : select nodes (not only elements, but also text, comments etc.) and return as an IEnumerable

What is XElement C#?

The XElement class represents an XML element in XLinq. The code creaes a root node called Authors and adds children Author nodes. The XAttribute class represents an attribute of an element. XElement. Save method saves the contents of XElement to a XML file.

What is XPathSelectElement?

XPathSelectElement(XNode, String) Selects an XElement using a XPath expression. XPathSelectElement(XNode, String, IXmlNamespaceResolver) Selects an XElement using a XPath expression, resolving namespace prefixes using the specified IXmlNamespaceResolver.

What is XPath in C#?

The XML Document Object Model (DOM) contains methods that allow you to use XML Path Language (XPath) navigation to query information in the DOM. You can use XPath to find a single, specific node or to find all nodes that match some criteria.

What is XName?

XName does not contain any public constructors. Instead, this class provides an implicit conversion from String that allows you to create an XName. The most common place you use this conversion is when constructing an element or attribute: The first argument to the XElement constructor is an XName.

How do you find the element value from XElement?

There are two main ways to get the value:

1. Cast an XElement or an XAttribute to the desired type. The explicit conversion operator then converts the contents of the element or attribute to the specified type and assigns it to your variable.
2. Use the XElement. Value or XAttribute. Value properties.

How do you change a value in XML?

The nodeValue property is used to change a node value. The setAttribute() method is used to change an attribute value….Change an Attribute Using setAttribute()

1. Suppose books. xml is loaded into xmlDoc.
2. Get the first element.
3. Change the “category” attribute value to “food”