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SystemId Property

XmlNotation.SystemId Property

Gets the value of the system identifier on the notation declaration.

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

public string SystemId { get; }

Property Value

Type: System.String
The system identifier on the notation. If there is no system identifier, null is returned.

The following example displays information on the notations declared in the XML document.

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

public class Sample
{
  private const String filename = "doment.xml";

  public static void Main()
  {      
    XmlDocument doc = new XmlDocument();
    doc.Load(filename);

    Console.WriteLine("Display information on all notations...");     
    XmlNamedNodeMap nMap = doc.DocumentType.Notations;
    DisplayNotations(nMap);      
  }

  public static void DisplayNotations(XmlNamedNodeMap nMap)
  {   
     for (int i=0; i < nMap.Count; i++)
     {
        XmlNotation note = (XmlNotation) nMap.Item(i);
        Console.Write("{0} ", note.NodeType);
        Console.Write("{0} ", note.Name);
        Console.Write("{0} ", note.PublicId);
        Console.Write("{0} ", note.SystemId);
        Console.WriteLine();
    }
  }            
}

The example uses the file doment.xml as input.

<!DOCTYPE doc [

  <!ELEMENT doc ANY>

  <!NOTATION w SYSTEM "wine.exe">
  <!NOTATION v PUBLIC "vine.exe">

  <!NOTATION jpg PUBLIC "Jpeg picture format">
  <!NOTATION gif SYSTEM "Gif picture format">

  <!ENTITY wn PUBLIC "http://www.cohowinery.com" "coho.exe" NDATA w>
  <!ENTITY vn SYSTEM "http://www.cohovineyard.com" NDATA v>
  <!ENTITY mytxt "Text Sample">

  <!ATTLIST doc 
        src     ENTITY         #IMPLIED
        srcs    ENTITIES       #IMPLIED
        jpgPic  NOTATION (jpg) #IMPLIED
        gifPic  NOTATION (gif) #REQUIRED>
]>

<doc jpgPic="jpg" gifPic="gif" srcs="vn wn">
    something
</doc>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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