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XNode.PreviousNode Property

Gets the previous sibling node of this node.

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

'Declaration
Public ReadOnly Property PreviousNode As XNode

Property Value

Type: System.Xml.Linq.XNode
The XNode that contains the previous sibling node.

If this XNode does not have a parent, or if there is no previous node, this property returns Nothing.

The following example uses this property to loop through nodes.


Dim output As New StringBuilder
Dim xmlTree As XElement = _
    <Root>
        <Child1>1</Child1>Some Text<Child2>2
<GrandChild>GrandChild Content</GrandChild>
        </Child2>
        <!--a comment-->
        <Child3>3</Child3>
    </Root>

Dim node As XNode = xmlTree.Element("Child2")
Do
    Dim sb As StringBuilder = New StringBuilder()
    sb.Append(String.Format("NodeType: {0}", node.NodeType.ToString().PadRight(10)))
    Select Case node.NodeType
        Case XmlNodeType.Text
            sb.Append(DirectCast(node, XText).Value)
        Case XmlNodeType.Element
            sb.Append(DirectCast(node, XElement).Name)
        Case XmlNodeType.Comment
            sb.Append(DirectCast(node, XComment).Value)
    End Select
    output.Append(sb.ToString())
    output.Append(Environment.NewLine)

    node = node.PreviousNode
Loop While (Not (node Is Nothing))

OutputTextBlock.Text = output.ToString()


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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