XNode.ElementsBeforeSelf Method

Definition

Namespace:

System.Xml.Linq

Assembly:

System.Xml.XDocument.dll

Returns a collection of the sibling elements before this node, in document order.

Overloads

ElementsBeforeSelf()	Returns a collection of the sibling elements before this node, in document order.
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.

Remarks

This method uses deferred execution.

ElementsBeforeSelf()

Source:

XNode.cs

Returns a collection of the sibling elements before this node, in document order.

public:
 System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ ElementsBeforeSelf();

public System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> ElementsBeforeSelf ();

member this.ElementsBeforeSelf : unit -> seq<System.Xml.Linq.XElement>

Public Function ElementsBeforeSelf () As IEnumerable(Of XElement)

Returns

IEnumerable<XElement>

An IEnumerable<T> of XElement of the sibling elements before this node, in document order.

Examples

The following example uses this axis method.

XElement xmlTree = new XElement("Root",  
    new XText("Text content."),  
    new XElement("Child1", "child1 content"),  
    new XElement("Child2", "child2 content"),  
    new XElement("Child3", "child3 content"),  
    new XText("More text content."),  
    new XElement("Child4", "child4 content"),  
    new XElement("Child5", "child5 content")  
);  
XElement child = xmlTree.Element("Child3");  
IEnumerable<XElement> elements = child.ElementsBeforeSelf();  
foreach (XElement el in elements)  
    Console.WriteLine(el.Name);  

Dim xmlTree As XElement = _   
        <Root>Text content.  
            <Child1>child1 content</Child1>  
            <Child2>child2 content</Child2>  
            <Child3>child3 content</Child3>More text content.  
            <Child4>child4 content</Child4>  
            <Child5>child5 content</Child5>  
        </Root>  

Dim child As XElement = xmlTree.<Child3>(0)  
Dim elements As IEnumerable(Of XElement) = child.ElementsBeforeSelf()  

For Each el In elements  
    Console.WriteLine(el.Name)  
Next  

This example produces the following output:

Child1  
Child2  

Remarks

This method only includes siblings in the returned collection. It does not include descendants.

This method uses deferred execution.

See also

• LINQ to XML overview

ElementsBeforeSelf(XName)

Source:

XNode.cs

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.

public:
 System::Collections::Generic::IEnumerable<System::Xml::Linq::XElement ^> ^ ElementsBeforeSelf(System::Xml::Linq::XName ^ name);

public System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement> ElementsBeforeSelf (System.Xml.Linq.XName? name);

member this.ElementsBeforeSelf : System.Xml.Linq.XName -> seq<System.Xml.Linq.XElement>

Public Function ElementsBeforeSelf (name As XName) As IEnumerable(Of XElement)

Parameters

name

XName

The XName to match.

Returns

IEnumerable<XElement>

An IEnumerable<T> of XElement of the sibling elements before this node, in document order. Only elements that have a matching XName are included in the collection.

Examples

The following example uses this method.

XElement xmlTree = new XElement("Root",  
    new XText("Text content."),  
    new XElement("Child1", "child1 content"),  
    new XElement("Child2", "child2 content"),  
    new XElement("Child3", "child3 content"),  
    new XText("More text content."),  
    new XElement("Child4", "child4 content"),  
    new XElement("Child5", "child5 content")  
);  
XElement child = xmlTree.Element("Child3");  
IEnumerable<XElement> elements = child.ElementsBeforeSelf("Child2");  
foreach (XElement el in elements)  
    Console.WriteLine(el.Name);  

Dim xmlTree As XElement = _   
        <Root>Text content.  
            <Child1>child1 content</Child1>  
            <Child2>child2 content</Child2>  
            <Child3>child3 content</Child3>More text content.  
            <Child4>child4 content</Child4>  
            <Child5>child5 content</Child5>  
        </Root>  

Dim child As XElement = xmlTree.<Child3>(0)  
Dim elements As IEnumerable(Of XElement) = child.ElementsBeforeSelf("Child2")  

For Each el In elements  
    Console.WriteLine(el.Name)  
Next  

This example produces the following output:

Child2  

Remarks

This method only includes siblings in the returned collection. It does not include descendants.

This method uses deferred execution.

See also

• LINQ to XML overview