Artikel
11/18/2011

XElement.ReplaceAll Method (array<Object[])

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Replaces the child nodes and the attributes of this element with the specified content.

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

Syntax

'Declaration
Public Sub ReplaceAll ( _
    ParamArray content As Object() _
)

public void ReplaceAll(
    params Object[] content
)

Parameters

content
Type: array<System.Object[]
A parameter list of content objects.

Remarks

This method first removes existing content and attributes. It then adds the specified content.

This method uses snapshot semantics—that is, it creates a separate copy of the new content before replacing the contents of the current element with the new content. This means that you can query the contents of the current element and use the results of the query as the specified new content.

For more information 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 passes the results of a LINQ query to this method, replacing the contents of an element with the query results.

Dim output As New StringBuilder
Dim xmlTree1 As XElement = _
        <Root>
            <Child1>1</Child1>
            <Child2>2</Child2>
            <Child3>3</Child3>
            <Child4>4</Child4>
            <Child5>5</Child5>
            <Child6>6</Child6>
        </Root>

Dim root As XElement = <Root>
                           <Child>child content</Child>
                       </Root>

root.ReplaceAll( _
    From el In xmlTree1.Elements() _
    Where el.Value >= 3 And el.Value <= 5 _
    Select el _
)

output.Append(root)
output.Append(Environment.NewLine)


OutputTextBlock.Text = output.ToString()

StringBuilder output = new StringBuilder();
XElement xmlTree1 = new XElement("Root",
    new XElement("Child1", 1),
    new XElement("Child2", 2),
    new XElement("Child3", 3),
    new XElement("Child4", 4),
    new XElement("Child5", 5),
    new XElement("Child6", 6)
);

XElement root = new XElement("Root",
    new XElement("Child", "child content")
);

root.ReplaceAll(
    from el in xmlTree1.Elements()
    where ((int)el >= 3 && (int)el <= 5)
    select el
);
output.Append(root + Environment.NewLine);

OutputTextBlock.Text = output.ToString();

Version Information

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

Platforms

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

Freigeben über