XNode.AddBeforeSelf Method (Object)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Adds the specified content immediately before this node.
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
Parameters
- content
- Type: System.Object
A content object that contains simple content or a collection of content objects to be added before this node.
| Exception | Condition |
|---|---|
| InvalidOperationException | The parent is Nothing. |
For details about the valid content that can be passed to this function, see Valid Content of XElement and XDocument Objects in the .NET Framework documentation.
The following example uses this method to add an element into the tree.
Dim output As New StringBuilder Dim xmlTree As XElement = _ <Root> <Child1>1</Child1> <Child2>2</Child2> <Child3>3</Child3> <Child4>4</Child4> <Child5>5</Child5> </Root> Dim child1 As XElement = xmlTree.<Child1>(0) child1.AddBeforeSelf(New XElement("NewChild", 10)) output.Append(xmlTree) output.Append(Environment.NewLine) OutputTextBlock.Text = output.ToString()
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