Extensions.Remove 方法

public:
[System::Runtime::CompilerServices::Extension]
 static void Remove(System::Collections::Generic::IEnumerable<System::Xml::Linq::XAttribute ^> ^ source);

public static void Remove (this System.Collections.Generic.IEnumerable<System.Xml.Linq.XAttribute> source);

public static void Remove (this System.Collections.Generic.IEnumerable<System.Xml.Linq.XAttribute>? source);

static member Remove : seq<System.Xml.Linq.XAttribute> -> unit

<Extension()>
Public Sub Remove (source As IEnumerable(Of XAttribute))

参数

示例

下面的示例检索特性的集合，然后调用此方法将其从父元素中移除。The following example retrieves a collection of attributes, and then calls this method to remove them from their parent elements.

XElement root = new XElement("Root",  
    new XAttribute("Att1", 1),  
    new XAttribute("Att2", 2),  
    new XAttribute("Att3", 3),  
    new XAttribute("Att4", 4),  
    new XAttribute("Att5", 5)  
);  

IEnumerable<XAttribute> atList =  
    from at in root.Attributes()  
    where (int)at >= 3  
    select at;  

atList.Remove();  

Console.WriteLine(root);  

Dim root As XElement = <Root Att1="1" Att2="2" Att3="3" Att4="4" Att5="5"/>  

Dim atList = From at In root.Attributes _  
             Where at.Value >= 3 _  
             Select at  

atList.Remove()  

Console.WriteLine(root)  

该示例产生下面的输出：This example produces the following output:

<Root Att1="1" Att2="2" />  

注解

此方法使用快照语义，也就是说，它将源集合中的属性复制到， System.Collections.Generic.List<T> 然后将其从其父项断开连接。This method uses snapshot semantics - that is, it copies the attributes in the source collection to a System.Collections.Generic.List<T> before disconnecting them from their parents. 这是避免混合命令式/声明性代码的问题所必需的。This is required to avoid issues with mixed imperative/declarative code. 有关详细信息，请参阅 混合声明性代码/命令性代码 bug (LINQ to XML) 。For more information, see Mixed Declarative Code/Imperative Code Bugs (LINQ to XML).

另请参阅

• RemoveAttributes()
• Attributes
• Remove()
• Remove()
• LINQ to XML 概述LINQ to XML overview

public:
generic <typename T>
 where T : System::Xml::Linq::XNode[System::Runtime::CompilerServices::Extension]
 static void Remove(System::Collections::Generic::IEnumerable<T> ^ source);

public static void Remove<T> (this System.Collections.Generic.IEnumerable<T> source) where T : System.Xml.Linq.XNode;

public static void Remove<T> (this System.Collections.Generic.IEnumerable<T>? source) where T : System.Xml.Linq.XNode;

static member Remove : seq<'T (requires 'T :> System.Xml.Linq.XNode)> -> unit (requires 'T :> System.Xml.Linq.XNode)

<Extension()>
Public Sub Remove(Of T As XNode) (source As IEnumerable(Of T))

类型参数

参数

示例

下面的示例检索元素的集合。The following example retrieves a collection of elements. 然后，它调用此方法从其父元素中移除元素。It then calls this method to remove the elements from their parent element.

XElement root = new XElement("Root",  
    new XElement("Data", 1),  
    new XElement("Data", 2),  
    new XElement("Data", 3),  
    new XElement("Data", 4),  
    new XElement("Data", 5)  
);  

IEnumerable<XElement> elList =  
    from el in root.Elements()  
    where (int)el >= 3  
    select el;  

elList.Remove();  

Console.WriteLine(root);  

Dim root As XElement = _  
    <Root>  
        <Data>1</Data>  
        <Data>2</Data>  
        <Data>3</Data>  
        <Data>4</Data>  
        <Data>5</Data>  
    </Root>  

Dim elList = From el In root.Elements _  
             Where el.Value >= 3 _  
             Select el  

elList.Remove()  

Console.WriteLine(root)  

该示例产生下面的输出：This example produces the following output:

<Root>  
  <Data>1</Data>  
  <Data>2</Data>  
</Root>  

注解

此方法使用快照语义，也就是说，它将源集合中的属性复制到， List<T> 然后将其从其父项断开连接。This method uses snapshot semantics - that is, it copies the attributes in the source collection to a List<T> before disconnecting them from their parents. 这是避免混合命令式/声明性代码的问题所必需的。This is required to avoid issues with mixed imperative/declarative code. 有关详细信息，请参阅 混合声明性代码/命令性代码 bug (LINQ to XML) 。For more information, see Mixed Declarative Code/Imperative Code Bugs (LINQ to XML).

另请参阅

• RemoveAll()
• Attributes
• Remove()
• Remove()
• LINQ to XML 概述LINQ to XML overview