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XContainer.ReplaceNodes Method

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Replaces the children nodes of this document or element with the specified content.

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 ReplaceNodes(Object) Replaces the children nodes of this document or element with the specified content.
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ReplaceNodes(array<Object[]) Replaces the children nodes of this document or element with the specified content.

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Remarks

For details about the valid content that can be passed to this function, see Valid Content of XElement and XDocument Objects.

This method will raise the Changed and the Changing events.

This method has snapshot semantics. It first creates a copy of the new content. It then removes all children nodes of this node. Finally, it adds the new content as children nodes. This means that you can replace children nodes using a query on the children nodes themselves.

Examples

The following example creates two XML trees, and then uses this method to replace the contents of one of them with the results of a query.

Dim output As New StringBuilder
Dim root As XElement = _
    <Root>
        <Child>1</Child>
        <Child>2</Child>
        <Child>3</Child>
        <Child>4</Child>
        <Child>5</Child>
    </Root>
root.ReplaceNodes( _
    From el In root.Elements _
    Where el.Value >= 3 _
    Select el)
output.Append(root)
output.Append(Environment.NewLine)


OutputTextBlock.Text = output.ToString()

StringBuilder output = new StringBuilder();
XElement root = new XElement("Root",
    new XElement("Child", 1),
    new XElement("Child", 2),
    new XElement("Child", 3),
    new XElement("Child", 4),
    new XElement("Child", 5)
);
root.ReplaceNodes(
    from el in root.Elements()
    where (int)el >= 3
    select el
);
output.Append(root  + Environment.NewLine);

OutputTextBlock.Text = output.ToString();