XmlTextReader.LineNumber Propiedad

Definición

Espacio de nombres:

System.Xml

Ensamblado:

System.Xml.ReaderWriter.dll

Source:

XmlTextReader.cs

Obtiene el número de línea actual.

public:
 property int LineNumber { int get(); };

public int LineNumber { get; }

member this.LineNumber : int

Public ReadOnly Property LineNumber As Integer

Valor de propiedad

Int32

Número de línea actual.

Implementaciones

LineNumber

Ejemplos

En el ejemplo siguiente se muestra cada nodo, incluida su profundidad, número de línea y posición de línea.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   // Create the XML fragment to be parsed.
   String^ xmlFrag = "<book>\n"
   "<misc>\n"
   "<style>paperback</style>\n"
   "<pages>240</pages>\n"
   "</misc>\n"
   "</book>\n";
   
   // Create the XmlNamespaceManager.
   NameTable^ nt = gcnew NameTable;
   XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager( nt );
   
   // Create the XmlParserContext.
   XmlParserContext^ context = gcnew XmlParserContext( nullptr,nsmgr,nullptr,XmlSpace::None );
   
   // Create the reader.
   XmlTextReader^ reader = gcnew XmlTextReader( xmlFrag,XmlNodeType::Element,context );
   
   // Parse the XML and display each node.
   while ( reader->Read() )
   {
      switch ( reader->NodeType )
      {
         case XmlNodeType::Element:
            Console::Write( " {0} {1}, {2}  ", reader->Depth, reader->LineNumber, reader->LinePosition );
            Console::WriteLine( "< {0}>", reader->Name );
            break;

         case XmlNodeType::Text:
            Console::Write( " {0} {1}, {2}  ", reader->Depth, reader->LineNumber, reader->LinePosition );
            Console::WriteLine( " {0}", reader->Value );
            break;

         case XmlNodeType::EndElement:
            Console::Write( " {0} {1}, {2}  ", reader->Depth, reader->LineNumber, reader->LinePosition );
            Console::WriteLine( "</ {0}>", reader->Name );
            break;
      }
   }

   
   // Close the reader.
   reader->Close();
}

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

public class Sample{

  public static void Main(){

    // Create the XML fragment to be parsed.
    string xmlFrag  =
    @"<book>
         <misc>
           <style>paperback</style>
           <pages>240</pages>
         </misc>
        </book>";

    // Create the XmlNamespaceManager.
    NameTable nt = new NameTable();
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);

    // Create the XmlParserContext.
    XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None);

    // Create the reader.
    XmlTextReader reader = new XmlTextReader(xmlFrag, XmlNodeType.Element, context);

    // Parse the XML and display each node.
    while (reader.Read()){
       switch (reader.NodeType){
         case XmlNodeType.Element:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition);
           Console.WriteLine("<{0}>", reader.Name);
           break;
         case XmlNodeType.Text:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition);
           Console.WriteLine("  {0}", reader.Value);
           break;
         case XmlNodeType.EndElement:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition);
           Console.WriteLine("</{0}>", reader.Name);
           break;
       }
    }

    // Close the reader.
    reader.Close();
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()

    ' Create the XML fragment to be parsed.
    Dim xmlFrag as string = "<book>" + Chr(10) & _
                                    "  <misc>"  + Chr(10) & _
                                    "    <style>paperback</style>"  + Chr(10) & _
                                    "    <pages>240</pages>" + Chr(10) & _
                                    "  </misc>" + Chr(10) & _
                                    "</book>"

    ' Create the XmlNamespaceManager.
    Dim nt as NameTable = new NameTable()
    Dim nsmgr as XmlNamespaceManager = new XmlNamespaceManager(nt)

    ' Create the XmlParserContext.
    Dim context as XmlParserContext = new XmlParserContext(nothing, nsmgr, nothing, XmlSpace.None)

    ' Create the reader.
    Dim reader as XmlTextReader = new XmlTextReader(xmlFrag, XmlNodeType.Element, context)

    ' Parse the XML and display each node.
    while (reader.Read())
       select case reader.NodeType
         case XmlNodeType.Element:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition)
           Console.WriteLine("<{0}>", reader.Name)
         case XmlNodeType.Text:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition)
           Console.WriteLine("  {0}", reader.Value)
         case XmlNodeType.EndElement:
           Console.Write("{0} {1},{2}  ", reader.Depth, reader.LineNumber, reader.LinePosition)
           Console.WriteLine("</{0}>", reader.Name)
       end select       
    end while           

    ' Close the reader.
    reader.Close()      
  end sub
end class

Comentarios

Nota:

A partir de .NET Framework 2.0, se recomienda crear XmlReader instancias mediante el XmlReader.Create método para aprovechar las nuevas funcionalidades.

Esta propiedad se usa con más frecuencia para la generación de informes de errores, pero se puede llamar en cualquier momento. El valor inicial de esta propiedad es 1.

Combinado con LinePosition, un valor de 1,1 indica el inicio del documento.

Consulte también

• XmlReader