IXmlLineInfo Interface

Provides an interface to enable a class to return line and position information.

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public interface IXmlLineInfo

The following example parses an XML fragment. Each node is displayed, including its depth, line number, and line position.

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.
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());

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

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

    IXmlLineInfo lineInfo = ((IXmlLineInfo)reader);
    if (lineInfo.HasLineInfo()){

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

    // Close the reader.
    reader.Close();       
  }
}
#using <mscorlib.dll>
#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  = 
      S"<book>\n"
      S"<misc>\n"
      S"<style>paperback</style>\n"
      S"<pages>240</pages>\n"
      S"</misc>\n"
      S"</book>\n";

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

   // Create the XmlParserContext.
   XmlParserContext* context = new XmlParserContext(0, nsmgr, 0, XmlSpace::None);

   // Create the reader.
   XmlValidatingReader* reader = new XmlValidatingReader(xmlFrag, XmlNodeType::Element, context);

   IXmlLineInfo* lineInfo = (dynamic_cast<IXmlLineInfo*>(reader));
   if (lineInfo -> HasLineInfo())
   {

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft