XmlAttribute.Prefix Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets or sets the namespace prefix of this node.
public:
virtual property System::String ^ Prefix { System::String ^ get(); void set(System::String ^ value); };
public override string Prefix { get; set; }
member this.Prefix : string with get, set
Public Overrides Property Prefix As String
Property Value
The namespace prefix of this node. If there is no prefix, this property returns String.Empty.
Exceptions
This node is read-only.
The specified prefix contains an invalid character.
The specified prefix is malformed.
The namespaceURI of this node is null
.
The specified prefix is "xml", and the namespaceURI of this node is different from "http://www.w3.org/XML/1998/namespace".
This node is an attribute, the specified prefix is "xmlns", and the namespaceURI of this node is different from "http://www.w3.org/2000/xmlns/".
This node is an attribute, and the qualifiedName of this node is "xmlns" [Namespaces].
Examples
The following example displays information on each of the nodes in the attribute collection.
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlDocument^ doc = gcnew XmlDocument;
doc->LoadXml( "<book xmlns:bk='urn:samples' bk:genre='novel'><title>Pride And Prejudice</title></book>" );
//Create an attribute collection.
XmlAttributeCollection^ attrColl = doc->DocumentElement->Attributes;
Console::WriteLine( "Display information on each of the attributes... \r\n" );
System::Collections::IEnumerator^ myEnum = attrColl->GetEnumerator();
while ( myEnum->MoveNext() )
{
XmlAttribute^ attr = safe_cast<XmlAttribute^>(myEnum->Current);
Console::Write( "{0}:{1} = {2}", attr->Prefix, attr->LocalName, attr->Value );
Console::WriteLine( "\t namespaceURI={0}", attr->NamespaceURI );
}
}
using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main(){
XmlDocument doc = new XmlDocument();
doc.LoadXml("<book xmlns:bk='urn:samples' bk:genre='novel'>" +
"<title>Pride And Prejudice</title>" +
"</book>");
//Create an attribute collection.
XmlAttributeCollection attrColl = doc.DocumentElement.Attributes;
Console.WriteLine("Display information on each of the attributes... \r\n");
foreach (XmlAttribute attr in attrColl){
Console.Write("{0}:{1} = {2}", attr.Prefix, attr.LocalName, attr.Value);
Console.WriteLine("\t namespaceURI=" + attr.NamespaceURI);
}
}
}
Imports System.IO
Imports System.Xml
public class Sample
public shared sub Main()
Dim doc as XmlDocument = new XmlDocument()
doc.LoadXml("<book xmlns:bk='urn:samples' bk:genre='novel'>" & _
"<title>Pride And Prejudice</title>" & _
"</book>")
'Create an attribute collection.
Dim attrColl as XmlAttributeCollection = doc.DocumentElement.Attributes
Console.WriteLine("Display information on each of the attributes... ")
Dim attr as XmlAttribute
for each attr in attrColl
Console.Write("{0}:{1} = {2}", attr.Prefix, attr.LocalName, attr.Value)
Console.WriteLine(" namespaceURI=" + attr.NamespaceURI)
next
end sub
end class
Remarks
Because changing the prefix of an attribute does not change its namespace URI, changing the prefix of an attribute that is known to have a default value does not create a new attribute with the default value and the original prefix.
Applies to
.NET
피드백
https://aka.ms/ContentUserFeedback
출시 예정: 2024년 내내 콘텐츠에 대한 피드백 메커니즘으로 GitHub 문제를 단계적으로 폐지하고 이를 새로운 피드백 시스템으로 바꿀 예정입니다. 자세한 내용은 다음을 참조하세요.다음에 대한 사용자 의견 제출 및 보기