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Modify elements, attributes, and nodes in an XML tree (LINQ to XML)

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The following table summarizes the methods and properties that you can use to modify an element, its child elements, or its attributes.

The following methods modify an XElement:

Method Description
XElement.Parse Replaces an element with parsed XML.
XElement.RemoveAll Removes all content (child nodes and attributes) of an element.
XElement.RemoveAttributes Removes the attributes of an element.
XElement.ReplaceAll Replaces all content (child nodes and attributes) of an element.
XElement.ReplaceAttributes Replaces the attributes of an element.
XElement.SetAttributeValue Sets the value of an attribute. Creates the attribute if it doesn't exist. If the value is set to null, removes the attribute.
XElement.SetElementValue Sets the value of a child element. Creates the element if it doesn't exist. If the value is set to null, removes the element.
XElement.Value Replaces the content (child nodes) of an element with the specified text.
XElement.SetValue Sets the value of an element.

The following methods modify an XAttribute:

Method Description
XAttribute.Value Sets the value of an attribute.
XAttribute.SetValue Sets the value of an attribute.

The following methods modify an XNode (including an XElement or XDocument):

Method Description
XNode.ReplaceWith Replaces a node with new content.

The following methods modify an XContainer (an XElement or XDocument):

Method Description
XContainer.ReplaceNodes Replaces the children nodes with new content: