XNode.NodesBeforeSelf Method ()

 

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

Namespace:   System.Xml.Linq
Assembly:  System.Xml.Linq (in System.Xml.Linq.dll)

Public Function NodesBeforeSelf As IEnumerable(Of XNode)

Return Value

Type: System.Collections.Generic.IEnumerable(Of XNode)

An IEnumerable(Of T) of XNode of the sibling nodes before this node, in document order.

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

This method uses deferred execution.

The following example creates an XML tree, and then queries the tree using this axis method.


                Dim xmlTree As XElement = New XElement("Root", _
    New XText("Text content."), _
    New XElement("Child1", "child1 content"), _
    New XElement("Child2", "child2 content"), _
    New XText("More text content."), _
    New XElement("child3", "child3 content") _
)

Dim child As XElement = xmlTree.Element("Child2")
Dim nodes As IEnumerable(Of XNode) = _
    From node In child.NodesBeforeSelf() _
    Select node
For Each node As XNode In nodes
    Dim s As String = ""
    If node.NodeType = XmlNodeType.Text Then
        s = DirectCast(node, XText).Value
    End If
    Console.WriteLine("Node type: {0}  {1}", node.NodeType, s)
Next

This example produces the following output:


                Node type: Text  Text content.
Node type: Element

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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