XmlAttributeCollection.ItemOf[] 属性

定义

命名空间:: System.Xml

程序集:: System.Xml.dll, System.Xml.XmlDocument.dll

程序集:: netstandard.dll, System.Xml.ReaderWriter.dll

程序集:: System.Xml.XmlDocument.dll

程序集:: System.Xml.ReaderWriter.dll

程序集:: System.Xml.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

获取具有指定名称或索引的属性。

重载

名称	说明
ItemOf[Int32]	获取具有指定索引的属性。
ItemOf[String]	获取具有指定名称的属性。
ItemOf[String, String]	获取具有指定本地名称和命名空间统一资源标识符（URI）的属性。

ItemOf[Int32]

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

获取具有指定索引的属性。

public:
 property System::Xml::XmlAttribute ^ default[int] { System::Xml::XmlAttribute ^ get(int i); };

public:
 virtual property System::Xml::XmlAttribute ^ default[int] { System::Xml::XmlAttribute ^ get(int i); };

public System.Xml.XmlAttribute this[int i] { get; }

public virtual System.Xml.XmlAttribute this[int i] { get; }

member this.ItemOf(int) : System.Xml.XmlAttribute

Default Public ReadOnly Property ItemOf(i As Integer) As XmlAttribute

Default Public Overridable ReadOnly Property ItemOf(i As Integer) As XmlAttribute

参数

i: Int32

属性的索引。

属性值

XmlAttribute

指定索引处的属性。

例外

IndexOutOfRangeException

传入的索引范围不足。

示例

以下示例显示集合中的所有属性。

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main(){

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    //Create an attribute collection.
    XmlAttributeCollection attrColl = doc.DocumentElement.Attributes;

    Console.WriteLine("Display all the attributes in the collection...\r\n");
    for (int i=0; i < attrColl.Count; i++)
    {
      Console.Write("{0} = ", attrColl[i].Name);
      Console.Write("{0}", attrColl[i].Value);
      Console.WriteLine();
    }
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()
  
    Dim doc as XmlDocument = new XmlDocument()
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" & _
                "<title>Pride And Prejudice</title>" & _
                "</book>")      

    'Create an attribute collection.
    Dim attrColl as XmlAttributeCollection = doc.DocumentElement.Attributes

    Console.WriteLine("Display all the attributes in the collection...")
    Dim i as integer
    for i=0  to attrColl.Count-1
      Console.Write("{0} = ", attrColl.ItemOf(i).Name)
      Console.Write("{0}", attrColl.ItemOf(i).Value)
      Console.WriteLine()
    next
        
  end sub
end class

注解

此属性是文档对象模型（DOM）的Microsoft扩展。它等效于调用 XmlNamedNodeMap.Item。

另请参阅

Item(Int32)

适用于

ItemOf[String]

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

获取具有指定名称的属性。

public:
 property System::Xml::XmlAttribute ^ default[System::String ^] { System::Xml::XmlAttribute ^ get(System::String ^ name); };

public:
 virtual property System::Xml::XmlAttribute ^ default[System::String ^] { System::Xml::XmlAttribute ^ get(System::String ^ name); };

public System.Xml.XmlAttribute this[string name] { get; }

public System.Xml.XmlAttribute? this[string name] { get; }

public virtual System.Xml.XmlAttribute this[string name] { get; }

member this.ItemOf(string) : System.Xml.XmlAttribute

Default Public ReadOnly Property ItemOf(name As String) As XmlAttribute

Default Public Overridable ReadOnly Property ItemOf(name As String) As XmlAttribute

参数

name: String

特性的限定名称。

属性值

XmlAttribute

具有指定名称的属性。如果该属性不存在，则此属性返回 null。

示例

以下示例从文档中删除一个属性。

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main(){

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    //Create an attribute collection and remove an attribute
    //from the collection.
    XmlAttributeCollection attrColl = doc.DocumentElement.Attributes;
    attrColl.Remove(attrColl["genre"]);

    Console.WriteLine("Display the modified XML...\r\n");
    Console.WriteLine(doc.OuterXml);
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()
  
    Dim doc as XmlDocument = new XmlDocument()
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" & _
                "<title>Pride And Prejudice</title>" & _
                "</book>")      

    'Create an attribute collection and remove an attribute
    'from the collection.  
    Dim attrColl as XmlAttributeCollection = doc.DocumentElement.Attributes
    attrColl.Remove(attrColl.ItemOf("genre"))

    Console.WriteLine("Display the modified XML...")
    Console.WriteLine(doc.OuterXml)

  end sub
end class

注解

此属性是文档对象模型（DOM）的Microsoft扩展。它等效于调用 GetNamedItem。

适用于

ItemOf[String, String]

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

Source:: XmlAttributeCollection.cs

获取具有指定本地名称和命名空间统一资源标识符（URI）的属性。

public:
 property System::Xml::XmlAttribute ^ default[System::String ^, System::String ^] { System::Xml::XmlAttribute ^ get(System::String ^ localName, System::String ^ namespaceURI); };

public:
 virtual property System::Xml::XmlAttribute ^ default[System::String ^, System::String ^] { System::Xml::XmlAttribute ^ get(System::String ^ localName, System::String ^ namespaceURI); };

public System.Xml.XmlAttribute this[string localName, string namespaceURI] { get; }

public System.Xml.XmlAttribute? this[string localName, string? namespaceURI] { get; }

public virtual System.Xml.XmlAttribute this[string localName, string namespaceURI] { get; }

member this.ItemOf(string * string) : System.Xml.XmlAttribute

Default Public ReadOnly Property ItemOf(localName As String, namespaceURI As String) As XmlAttribute

Default Public Overridable ReadOnly Property ItemOf(localName As String, namespaceURI As String) As XmlAttribute

参数

localName: String

特性的本地名称。

namespaceURI: String

特性的命名空间 URI。

属性值

XmlAttribute

具有指定本地名称和命名空间 URI 的属性。如果该属性不存在，则此属性返回 null。

注解

此属性是文档对象模型（DOM）的Microsoft扩展。它等效于调用 GetNamedItem。

适用于

反馈

此页面是否有帮助？