XElement Class
Represents an XML element.
System.Xml.Linq::XObject
System.Xml.Linq::XNode
System.Xml.Linq::XContainer
System.Xml.Linq::XElement
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
The XElement type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | XElement(XElement) | Initializes a new instance of the XElement class from another XElement object. |
![]() ![]() | XElement(XName) | Initializes a new instance of the XElement class with the specified name. |
![]() ![]() | XElement(XStreamingElement) | Initializes a new instance of the XElement class from an XStreamingElement object. |
![]() ![]() | XElement(XName, Object) | Initializes a new instance of the XElement class with the specified name and content. |
![]() ![]() | XElement(XName, array<Object>) | Initializes a new instance of the XElement class with the specified name and content. |
| Name | Description | |
|---|---|---|
![]() ![]() | BaseUri | Gets the base URI for this XObject. (Inherited from XObject.) |
![]() ![]() | Document | Gets the XDocument for this XObject. (Inherited from XObject.) |
![]() ![]() ![]() | EmptySequence | Gets an empty collection of elements. |
![]() ![]() | FirstAttribute | Gets the first attribute of this element. |
![]() ![]() | FirstNode | Get the first child node of this node. (Inherited from XContainer.) |
![]() ![]() | HasAttributes | Gets a value indicating whether this element as at least one attribute. |
![]() ![]() | HasElements | Gets a value indicating whether this element has at least one child element. |
![]() ![]() | IsEmpty | Gets a value indicating whether this element contains no content. |
![]() ![]() | LastAttribute | Gets the last attribute of this element. |
![]() ![]() | LastNode | Get the last child node of this node. (Inherited from XContainer.) |
![]() ![]() | Name | Gets or sets the name of this element. |
![]() ![]() | NextNode | Gets the next sibling node of this node. (Inherited from XNode.) |
![]() ![]() | NodeType | Gets the node type for this node. (Overrides XObject::NodeType.) |
![]() ![]() | Parent | Gets the parent XElement of this XObject. (Inherited from XObject.) |
![]() ![]() | PreviousNode | Gets the previous sibling node of this node. (Inherited from XNode.) |
![]() ![]() | Value | Gets or sets the concatenated text contents of this element. |
| Name | Description | |
|---|---|---|
![]() ![]() | Add(Object) | Adds the specified content as children of this XContainer. (Inherited from XContainer.) |
![]() ![]() | Add(array<Object>) | Adds the specified content as children of this XContainer. (Inherited from XContainer.) |
![]() ![]() | AddAfterSelf(Object) | Adds the specified content immediately after this node. (Inherited from XNode.) |
![]() ![]() | AddAfterSelf(array<Object>) | Adds the specified content immediately after this node. (Inherited from XNode.) |
![]() ![]() | AddAnnotation | Adds an object to the annotation list of this XObject. (Inherited from XObject.) |
![]() ![]() | AddBeforeSelf(Object) | Adds the specified content immediately before this node. (Inherited from XNode.) |
![]() ![]() | AddBeforeSelf(array<Object>) | Adds the specified content immediately before this node. (Inherited from XNode.) |
![]() ![]() | AddFirst(Object) | Adds the specified content as the first children of this document or element. (Inherited from XContainer.) |
![]() ![]() | AddFirst(array<Object>) | Adds the specified content as the first children of this document or element. (Inherited from XContainer.) |
![]() ![]() | Ancestors() | Returns a collection of the ancestor elements of this node. (Inherited from XNode.) |
![]() ![]() | Ancestors(XName) | Returns a filtered collection of the ancestor elements of this node. Only elements that have a matching XName are included in the collection. (Inherited from XNode.) |
![]() ![]() | AncestorsAndSelf() | Returns a collection of elements that contain this element, and the ancestors of this element. |
![]() ![]() | AncestorsAndSelf(XName) | Returns a filtered collection of elements that contain this element, and the ancestors of this element. Only elements that have a matching XName are included in the collection. |
![]() ![]() | Annotation(Type) | Gets the first annotation object of the specified type from this XObject. (Inherited from XObject.) |
![]() ![]() | Annotation<T>() | Get the first annotation object of the specified type from this XObject. (Inherited from XObject.) |
![]() ![]() | Annotations(Type) | Gets a collection of annotations of the specified type for this XObject. (Inherited from XObject.) |
![]() ![]() | Annotations<T>() | Gets a collection of annotations of the specified type for this XObject. (Inherited from XObject.) |
![]() ![]() | Attribute | Returns the XAttribute of this XElement that has the specified XName. |
![]() ![]() | Attributes() | Returns a collection of attributes of this element. |
![]() ![]() | Attributes(XName) | Returns a filtered collection of attributes of this element. Only elements that have a matching XName are included in the collection. |
![]() ![]() | CreateReader() | Creates an XmlReader for this node. (Inherited from XNode.) |
![]() | CreateReader(ReaderOptions) | Creates an XmlReader with the options specified by the readerOptions parameter. (Inherited from XNode.) |
![]() ![]() | CreateWriter | Creates an XmlWriter that can be used to add nodes to the XContainer. (Inherited from XContainer.) |
![]() ![]() | DescendantNodes | Returns a collection of the descendant nodes for this document or element, in document order. (Inherited from XContainer.) |
![]() ![]() | DescendantNodesAndSelf | Returns a collection of nodes that contain this element, and all descendant nodes of this element, in document order. |
![]() ![]() | Descendants() | Returns a collection of the descendant elements for this document or element, in document order. (Inherited from XContainer.) |
![]() ![]() | Descendants(XName) | Returns a filtered collection of the descendant elements for this document or element, in document order. Only elements that have a matching XName are included in the collection. (Inherited from XContainer.) |
![]() ![]() | DescendantsAndSelf() | Returns a collection of elements that contain this element, and all descendant elements of this element, in document order. |
![]() ![]() | DescendantsAndSelf(XName) | Returns a filtered collection of elements that contain this element, and all descendant elements of this element, in document order. Only elements that have a matching XName are included in the collection. |
![]() ![]() | Element | Gets the first (in document order) child element with the specified XName. (Inherited from XContainer.) |
![]() ![]() | Elements() | Returns a collection of the child elements of this element or document, in document order. (Inherited from XContainer.) |
![]() ![]() | Elements(XName) | Returns a filtered collection of the child elements of this element or document, in document order. Only elements that have a matching XName are included in the collection. (Inherited from XContainer.) |
![]() ![]() | ElementsAfterSelf() | Returns a collection of the sibling elements after this node, in document order. (Inherited from XNode.) |
![]() ![]() | ElementsAfterSelf(XName) | Returns a filtered collection of the sibling elements after this node, in document order. Only elements that have a matching XName are included in the collection. (Inherited from XNode.) |
![]() ![]() | ElementsBeforeSelf() | Returns a collection of the sibling elements before this node, in document order. (Inherited from XNode.) |
![]() ![]() | ElementsBeforeSelf(XName) | Returns a filtered collection of the sibling elements before this node, in document order. Only elements that have a matching XName are included in the collection. (Inherited from XNode.) |
![]() ![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() ![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() ![]() | GetDefaultNamespace | Gets the default XNamespace of this XElement. |
![]() ![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() ![]() | GetNamespaceOfPrefix | Gets the namespace associated with a particular prefix for this XElement. |
![]() ![]() | GetPrefixOfNamespace | Gets the prefix associated with a namespace for this XElement. |
![]() ![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() ![]() | IsAfter | Determines if the current node appears after a specified node in terms of document order. (Inherited from XNode.) |
![]() ![]() | IsBefore | Determines if the current node appears before a specified node in terms of document order. (Inherited from XNode.) |
![]() ![]() | Load(Stream) | Creates a new XElement instance by using the specified stream. |
![]() ![]() ![]() | Load(String) | Loads an XElement from a file. |
![]() ![]() ![]() | Load(TextReader) | Loads an XElement from a TextReader. |
![]() ![]() ![]() | Load(XmlReader) | Loads an XElement from an XmlReader. |
![]() ![]() | Load(Stream, LoadOptions) | Creates a new XElement instance by using the specified stream, optionally preserving white space, setting the base URI, and retaining line information. |
![]() ![]() ![]() | Load(String, LoadOptions) | Loads an XElement from a file, optionally preserving white space, setting the base URI, and retaining line information. |
![]() ![]() ![]() | Load(TextReader, LoadOptions) | Loads an XElement from a TextReader, optionally preserving white space and retaining line information. |
![]() ![]() ![]() | Load(XmlReader, LoadOptions) | Loads an XElement from an XmlReader, optionally preserving white space, setting the base URI, and retaining line information. |
![]() ![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() ![]() | Nodes | Returns a collection of the child nodes of this element or document, in document order. (Inherited from XContainer.) |
![]() ![]() | NodesAfterSelf | Returns a collection of the sibling nodes after this node, in document order. (Inherited from XNode.) |
![]() ![]() | NodesBeforeSelf | Returns a collection of the sibling nodes before this node, in document order. (Inherited from XNode.) |
![]() ![]() ![]() | Parse(String) | Load an XElement from a string that contains XML. |
![]() ![]() ![]() | Parse(String, LoadOptions) | Load an XElement from a string that contains XML, optionally preserving white space and retaining line information. |
![]() ![]() | Remove | Removes this node from its parent. (Inherited from XNode.) |
![]() ![]() | RemoveAll | Removes nodes and attributes from this XElement. |
![]() ![]() | RemoveAnnotations(Type) | Removes the annotations of the specified type from this XObject. (Inherited from XObject.) |
![]() ![]() | RemoveAnnotations<T>() | Removes the annotations of the specified type from this XObject. (Inherited from XObject.) |
![]() ![]() | RemoveAttributes | Removes the attributes of this XElement. |
![]() ![]() | RemoveNodes | Removes the child nodes from this document or element. (Inherited from XContainer.) |
![]() ![]() | ReplaceAll(Object) | Replaces the child nodes and the attributes of this element with the specified content. |
![]() ![]() | ReplaceAll(array<Object>) | Replaces the child nodes and the attributes of this element with the specified content. |
![]() ![]() | ReplaceAttributes(Object) | Replaces the attributes of this element with the specified content. |
![]() ![]() | ReplaceAttributes(array<Object>) | Replaces the attributes of this element with the specified content. |
![]() ![]() | ReplaceNodes(Object) | Replaces the children nodes of this document or element with the specified content. (Inherited from XContainer.) |
![]() ![]() | ReplaceNodes(array<Object>) | Replaces the children nodes of this document or element with the specified content. (Inherited from XContainer.) |
![]() ![]() | ReplaceWith(Object) | Replaces this node with the specified content. (Inherited from XNode.) |
![]() ![]() | ReplaceWith(array<Object>) | Replaces this node with the specified content. (Inherited from XNode.) |
![]() | Save(Stream) | Outputs this XElement to the specified Stream. |
![]() ![]() | Save(String) | Serialize this element to a file. |
![]() ![]() | Save(TextWriter) | Serialize this element to a TextWriter. |
![]() ![]() | Save(XmlWriter) | Serialize this element to an XmlWriter. |
![]() | Save(Stream, SaveOptions) | Outputs this XElement to the specified Stream, optionally specifying formatting behavior. |
![]() ![]() | Save(String, SaveOptions) | Serialize this element to a file, optionally disabling formatting. |
![]() ![]() | Save(TextWriter, SaveOptions) | Serialize this element to a TextWriter, optionally disabling formatting. |
![]() ![]() | SetAttributeValue | Sets the value of an attribute, adds an attribute, or removes an attribute. |
![]() ![]() | SetElementValue | Sets the value of a child element, adds a child element, or removes a child element. |
![]() ![]() | SetValue | Sets the value of this element. |
![]() ![]() | ToString() | Returns the indented XML for this node. (Inherited from XNode.) |
![]() ![]() | ToString(SaveOptions) | Returns the XML for this node, optionally disabling formatting. (Inherited from XNode.) |
![]() ![]() | WriteTo | Write this element to an XmlWriter. (Overrides XNode::WriteTo(XmlWriter).) |
| Name | Description | |
|---|---|---|
![]() | CreateNavigator() | Overloaded. Creates an XPathNavigator for an XNode. (Defined by Extensions.) |
![]() | CreateNavigator(XmlNameTable) | Overloaded. Creates an XPathNavigator for an XNode. The XmlNameTable enables more efficient XPath expression processing. (Defined by Extensions.) |
![]() | GetSchemaInfo | Gets the post-schema-validation infoset (PSVI) of a validated element. (Defined by Extensions.) |
![]() | Validate(XmlSchemaObject, XmlSchemaSet, ValidationEventHandler) | Overloaded. This method validates that an XElement sub-tree conforms to a specified XmlSchemaObject and an XmlSchemaSet. (Defined by Extensions.) |
![]() | Validate(XmlSchemaObject, XmlSchemaSet, ValidationEventHandler, Boolean) | Overloaded. Validates that an XElement sub-tree conforms to a specified XmlSchemaObject and an XmlSchemaSet, optionally populating the XML tree with the post-schema-validation infoset (PSVI). (Defined by Extensions.) |
![]() | XPathEvaluate(String) | Overloaded. Evaluates an XPath expression. (Defined by Extensions.) |
![]() | XPathEvaluate(String, IXmlNamespaceResolver) | Overloaded. Evaluates an XPath expression, resolving namespace prefixes using the specified IXmlNamespaceResolver. (Defined by Extensions.) |
![]() | XPathSelectElement(String) | Overloaded. Selects an XElement using a XPath expression. (Defined by Extensions.) |
![]() | XPathSelectElement(String, IXmlNamespaceResolver) | Overloaded. Selects an XElement using a XPath expression, resolving namespace prefixes using the specified IXmlNamespaceResolver. (Defined by Extensions.) |
![]() | XPathSelectElements(String) | Overloaded. Selects a collection of elements using an XPath expression. (Defined by Extensions.) |
![]() | XPathSelectElements(String, IXmlNamespaceResolver) | Overloaded. Selects a collection of elements using an XPath expression, resolving namespace prefixes using the specified IXmlNamespaceResolver. (Defined by Extensions.) |
| Name | Description | |
|---|---|---|
![]() ![]() ![]() | IXmlLineInfo::HasLineInfo | Gets a value indicating whether or not this XObject has line information. (Inherited from XObject.) |
![]() ![]() ![]() | IXmlLineInfo::LineNumber | Gets the line number that the underlying XmlReader reported for this XObject. (Inherited from XObject.) |
![]() ![]() ![]() | IXmlLineInfo::LinePosition | Gets the line position that the underlying XmlReader reported for this XObject. (Inherited from XObject.) |
![]() ![]() ![]() | IXmlSerializable::GetSchema | Gets an XML schema definition that describes the XML representation of this object. |
![]() ![]() ![]() | IXmlSerializable::ReadXml | Generates an object from its XML representation. |
![]() ![]() ![]() | IXmlSerializable::WriteXml | Converts an object into its XML representation. |
This class represents an XML element, the fundamental XML construct.
An element has an XName, optionally one or more attributes, and can optionally contain content (for more information, see Nodes).
An XElement can contain the following types of content:
For details about the valid content of an XElement, see Valid Content of XElement and XDocument Objects.
XElement derives from XContainer, which derives from XNode.
Some XElement methods can be used from XAML. For more information, see LINQ to XML Dynamic Properties.
The following example creates an XML tree. The content of the new element comes from a LINQ query.
This example produces the following output:
<Root> <Child3>3</Child3> <Child4>4</Child4> <Child5>5</Child5> </Root>
The following is the same example, but in this case the XML is in a namespace. For more information, see Working with XML Namespaces.
This example produces the following output:
<Root xmlns="http://www.adventure-works.com"> <Child3>3</Child3> <Child4>4</Child4> <Child5>5</Child5> </Root>
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

