XmlElement.GetAttributeNode 方法

定义

返回指定的 XmlAttribute

重载

GetAttributeNode(String)

返回具有指定名称的 XmlAttribute

GetAttributeNode(String, String)

返回具有指定本地名称和命名空间 URI 的 XmlAttribute

GetAttributeNode(String)

返回具有指定名称的 XmlAttribute

public:
 virtual System::Xml::XmlAttribute ^ GetAttributeNode(System::String ^ name);
public virtual System.Xml.XmlAttribute GetAttributeNode (string name);
public virtual System.Xml.XmlAttribute? GetAttributeNode (string name);
abstract member GetAttributeNode : string -> System.Xml.XmlAttribute
override this.GetAttributeNode : string -> System.Xml.XmlAttribute
Public Overridable Function GetAttributeNode (name As String) As XmlAttribute

参数

name
String

要检索的属性的名称。 这是限定名。 它针对匹配节点的 Name 属性进行匹配。

返回

XmlAttribute

如果找到匹配的属性,则为指定的 XmlAttribute;如果未找到,则为 null

示例

以下示例检查元素是否具有指定的属性。

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( "<book genre='novel' ISBN='1-861001-57-5'><title>Pride And Prejudice</title></book>" );
   XmlElement^ root = doc->DocumentElement;
   
   // Check to see if the element has a genre attribute.
   if ( root->HasAttribute( "genre" ) )
   {
      XmlAttribute^ attr = root->GetAttributeNode( "genre" );
      Console::WriteLine( attr->Value );
   }
}
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>");

    XmlElement root = doc.DocumentElement;

    // Check to see if the element has a genre attribute.
    if (root.HasAttribute("genre")){
      XmlAttribute attr = root.GetAttributeNode("genre");
      Console.WriteLine(attr.Value);
   }
  }
}
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>")      

    Dim root as XmlElement = doc.DocumentElement

    ' Check to see if the element has a genre attribute.
    if (root.HasAttribute("genre"))
     Dim attr as XmlAttribute = root.GetAttributeNode("genre")
     Console.WriteLine(attr.Value)
    end if
       
    Console.WriteLine("Display the modified XML...")
    Console.WriteLine(doc.InnerXml)

  end sub
end class

适用于

GetAttributeNode(String, String)

返回具有指定本地名称和命名空间 URI 的 XmlAttribute

public:
 virtual System::Xml::XmlAttribute ^ GetAttributeNode(System::String ^ localName, System::String ^ namespaceURI);
public virtual System.Xml.XmlAttribute GetAttributeNode (string localName, string namespaceURI);
public virtual System.Xml.XmlAttribute? GetAttributeNode (string localName, string? namespaceURI);
abstract member GetAttributeNode : string * string -> System.Xml.XmlAttribute
override this.GetAttributeNode : string * string -> System.Xml.XmlAttribute
Public Overridable Function GetAttributeNode (localName As String, namespaceURI As String) As XmlAttribute

参数

localName
String

属性的本地名称。

namespaceURI
String

属性的命名空间 URI。

返回

XmlAttribute

如果找到匹配的属性,则为指定的 XmlAttribute;如果未找到,则为 null

适用于