XElement.AddBeforeSelf Method

Include Protected Members
Include Inherited Members

Include Silverlight Members
Include Silverlight for Windows Phone Members
Include XNA Framework Members

Adds the specified content immediately before this node.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

Overload List

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddBeforeSelf(Object) Adds the specified content immediately before this node. (Inherited from XNode.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddBeforeSelf(array<Object[]) Adds the specified content immediately before this node. (Inherited from XNode.)

Top

Remarks

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.

This method will raise the Changed and the Changing events.

Examples

The following example uses a LINQ query to create an IEnumerable<T> of XElement, which it then passes to this method. This adds the results of a query to the tree in the desired location.

Dim output As New StringBuilder
Dim srcTree As XElement = _
        <Root>
            <Element1>1</Element1>
            <Element2>2</Element2>
            <Element3>3</Element3>
            <Element4>4</Element4>
            <Element5>5</Element5>
        </Root>

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( _
From el In srcTree.Elements() _
Where CInt(el) > 3 _
Select el)

output.Append(xmlTree)
output.Append(Environment.NewLine)

OutputTextBlock.Text = output.ToString()
StringBuilder output = new StringBuilder();
XElement srcTree = new XElement("Root",
    new XElement("Element1", 1),
    new XElement("Element2", 2),
    new XElement("Element3", 3),
    new XElement("Element4", 4),
    new XElement("Element5", 5)
);
XElement xmlTree = new XElement("Root",
    new XElement("Child1", 1),
    new XElement("Child2", 2),
    new XElement("Child3", 3),
    new XElement("Child4", 4),
    new XElement("Child5", 5)
);
XElement child1 = xmlTree.Element("Child1");
child1.AddBeforeSelf(
    from el in srcTree.Elements()
    where (int)el > 3
    select el
);
output.Append(xmlTree + Environment.NewLine);

OutputTextBlock.Text = output.ToString();