XmlNamespaceManager.PopScope Método

Definição

Namespace:
System.Xml
Assemblies:
System.Xml.dll, System.Xml.ReaderWriter.dll
Assembly:
System.Xml.dll
Assembly:
System.Xml.ReaderWriter.dll
Assembly:
netstandard.dll

Exibe um escopo de namespace fora da pilha.

public:
 virtual bool PopScope();
public virtual bool PopScope();
abstract member PopScope : unit -> bool
override this.PopScope : unit -> bool
Public Overridable Function PopScope () As Boolean

Retornos

Boolean

true se houver escopos de namespace à esquerda na pilha; false se não houver mais namespaces para pop.

Exemplos

O exemplo a seguir adiciona pares de prefixo/namespace ao XmlNamespaceManager e, em seguida, exibe todos os pares na coleção.

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

public class Sample
{
  public static void Main()
  {
    Sample test = new Sample();
  }
  public Sample()
  {
    // Create the XmlNamespaceManager.
    NameTable nt = new NameTable();
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);

    // Add prefix/namespace pairs to the XmlNamespaceManager.
    nsmgr.AddNamespace("", "www.wideworldimporters.com"); //Adds a default namespace.
    nsmgr.AddNamespace("europe", "www.wideworldimporters.com/europe");
    nsmgr.PushScope();  //Pushes a namespace scope on the stack.
    nsmgr.AddNamespace("", "www.lucernepublishing.com"); //Adds another default namespace.
    nsmgr.AddNamespace("partners", "www.lucernepublishing.com/partners");

    Console.WriteLine("Show all the prefix/namespace pairs in the XmlNamespaceManager...");
    ShowAllNamespaces(nsmgr);
  }

  private void ShowAllNamespaces(XmlNamespaceManager nsmgr)
  {
    do{
       foreach (String prefix in nsmgr)
       {
        Console.WriteLine("Prefix={0}, Namespace={1}", prefix,nsmgr.LookupNamespace(prefix));
       }
    }
    while (nsmgr.PopScope());
  }
}

Option Explicit
Option Strict

Imports System.IO
Imports System.Xml

Public Class Sample
    
    Public Shared Sub Main()
        Dim test As New Sample()
    End Sub
    
    Public Sub New()
        ' Create the XmlNamespaceManager.
        Dim nt As New NameTable()
        Dim nsmgr As New XmlNamespaceManager(nt)
        
        ' Add prefix/namespace pairs to the XmlNamespaceManager.
        nsmgr.AddNamespace("", "www.wideworldimporters.com") 'Adds a default namespace.
        nsmgr.AddNamespace("europe", "www.wideworldimporters.com/europe")
        nsmgr.PushScope() 'Pushes a namespace scope on the stack.
        nsmgr.AddNamespace("", "www.lucernepublishing.com") 'Adds another default namespace.
        nsmgr.AddNamespace("partners", "www.lucernepublishing.com/partners")
        
        Console.WriteLine("Show all the prefix/namespace pairs in the XmlNamespaceManager...")
        ShowAllNamespaces(nsmgr)
    End Sub
    
    
    Private Sub ShowAllNamespaces(nsmgr As XmlNamespaceManager)
        Do
            Dim prefix As String
            For Each prefix In  nsmgr
                Console.WriteLine("Prefix={0}, Namespace={1}", prefix, nsmgr.LookupNamespace(prefix))
            Next prefix
        Loop While nsmgr.PopScope()
    End Sub
End Class

Comentários

Quando você chama esse método, todos os namespaces que foram adicionados XmlNamespaceManager (chamando AddNamespace) desde a última chamada a PopScope serem removidos.

Aplica-se a

Confira também