XNode.ReplaceWith 方法

定义

重载

示例

以下示例使用此方法将节点的内容替换为不同的内容。

XElement xmlTree = new XElement("Root",  
    new XElement("Child1", "child1 content"),  
    new XElement("Child2", "child2 content"),  
    new XElement("Child3", "child3 content"),  
    new XElement("Child4", "child4 content"),  
    new XElement("Child5", "child5 content")  
);  
XElement child3 = xmlTree.Element("Child3");  
child3.ReplaceWith(  
    new XElement("NewChild", "new content")  
);  
Console.WriteLine(xmlTree);  

Dim xmlTree As XElement = _   
        <Root>  
            <Child1>child1 content</Child1>  
            <Child2>child2 content</Child2>  
            <Child3>child3 content</Child3>  
            <Child4>child4 content</Child4>  
            <Child5>child5 content</Child5>  
        </Root>  

Dim child3 As XElement = xmlTree.<Child3>(0)  
child3.ReplaceWith(<NewChild>new content</NewChild>)  
Console.WriteLine(xmlTree)  

该示例产生下面的输出：

<Root>  
  <Child1>child1 content</Child1>  
  <Child2>child2 content</Child2>  
  <NewChild>new content</NewChild>  
  <Child4>child4 content</Child4>  
  <Child5>child5 content</Child5>  
</Root>  

注解

有关可传递给此方法的有效内容的详细信息，请参阅 XElement 和 XDocument 对象的有效内容。

此方法将引发 Changed 和 Changing 事件。

将其 XContainer 子节点存储为对象的单独链接列表 XNode 。 这意味着 方法 ReplaceWith 必须遍历父容器下的直接子节点列表。 因此，使用此方法可能会影响性能。

public:
 void ReplaceWith(System::Object ^ content);

public void ReplaceWith(object content);

public void ReplaceWith(object? content);

member this.ReplaceWith : obj -> unit

Public Sub ReplaceWith (content As Object)

XElement xmlTree = new XElement("Root",  
    new XElement("Child1", "child1 content"),  
    new XElement("Child2", "child2 content"),  
    new XElement("Child3", "child3 content"),  
    new XElement("Child4", "child4 content"),  
    new XElement("Child5", "child5 content")  
);  
XElement child3 = xmlTree.Element("Child3");  
child3.ReplaceWith(  
    new XElement("NewChild", "new content")  
);  
Console.WriteLine(xmlTree);  

Dim xmlTree As XElement = _   
        <Root>  
            <Child1>child1 content</Child1>  
            <Child2>child2 content</Child2>  
            <Child3>child3 content</Child3>  
            <Child4>child4 content</Child4>  
            <Child5>child5 content</Child5>  
        </Root>  

Dim child3 As XElement = xmlTree.<Child3>(0)  
child3.ReplaceWith(<NewChild>new content</NewChild>)  
Console.WriteLine(xmlTree)  

<Root>  
  <Child1>child1 content</Child1>  
  <Child2>child2 content</Child2>  
  <NewChild>new content</NewChild>  
  <Child4>child4 content</Child4>  
  <Child5>child5 content</Child5>  
</Root>  

public:
 void ReplaceWith(... cli::array <System::Object ^> ^ content);

public void ReplaceWith(params object[] content);

public void ReplaceWith(params object?[] content);

member this.ReplaceWith : obj[] -> unit

Public Sub ReplaceWith (ParamArray content As Object())

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 child3 = xmlTree.Element("Child3");  
child3.ReplaceWith(  
    from el in srcTree.Elements()  
    where (int)el > 3  
    select el  
);  
Console.WriteLine(xmlTree);  

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 child3 As XElement = xmlTree.<Child3>(0)  
child3.ReplaceWith( _  
    From el In srcTree.Elements() _  
    Where (CInt(el) > 3) _  
    Select el)  

Console.WriteLine(xmlTree)  

<Root>  
  <Child1>1</Child1>  
  <Child2>2</Child2>  
  <Element4>4</Element4>  
  <Element5>5</Element5>  
  <Child4>4</Child4>  
  <Child5>5</Child5>  
</Root>