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XmlValidatingReader.Value Property

Gets the text value of the current node.

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

public override string Value { get; }

Property Value

Type: System.String
The value returned depends on the NodeType of the node. The following table lists node types that have a value to return. All other node types return String.Empty.

Node Type

Value

Attribute

The value of the attribute.

CDATA

The content of the CDATA section.

Comment

The content of the comment.

DocumentType

The internal subset.

ProcessingInstruction

The entire content, excluding the target.

SignificantWhitespace

The white space between markup in a mixed content model.

Text

The content of the text node.

Whitespace

The white space between markup.

XmlDeclaration

The content of the declaration.

NoteNote:

The XmlValidatingReader class is obsolete in .NET Framework version 2.0. You can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. For more information, see Validating XML Data with XmlReader.

The following example reads an XML file and displays each node.

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

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

  public static void Main()
  {
     XmlTextReader txtreader = null;
     XmlValidatingReader reader = null;

     try
     {  
        //Load the reader with the data file and ignore all white space nodes.         
        txtreader = new XmlTextReader(filename);
        txtreader.WhitespaceHandling = WhitespaceHandling.None;

        //Implement the validating reader over the text reader. 
        reader = new XmlValidatingReader(txtreader);
        reader.ValidationType = ValidationType.None;

        //Parse the file and display each of the nodes. 
        while (reader.Read())
        {
           switch (reader.NodeType)
           {
             case XmlNodeType.Element:
               Console.Write("<{0}>", reader.Name);
               break;
             case XmlNodeType.Text:
               Console.Write(reader.Value);
               break;
             case XmlNodeType.CDATA:
               Console.Write("<![CDATA[{0}]]>", reader.Value);
               break;
             case XmlNodeType.ProcessingInstruction:
               Console.Write("<?{0} {1}?>", reader.Name, reader.Value);
               break;
             case XmlNodeType.Comment:
               Console.Write("<!--{0}-->", reader.Value);
               break;
             case XmlNodeType.XmlDeclaration:
               Console.Write("<?xml version='1.0'?>");
               break;
             case XmlNodeType.Document:
               break;
             case XmlNodeType.DocumentType:
               Console.Write("<!DOCTYPE {0} [{1}]", reader.Name, reader.Value);
               break;
             case XmlNodeType.EntityReference:
               Console.Write(reader.Name);
               break;
             case XmlNodeType.EndElement:
               Console.Write("</{0}>", reader.Name);
               break;
           }       
        }           
     }

     finally
     {
        if (reader!=null)
          reader.Close();
     }
  }
} // End class
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;


int main()
{
   XmlTextReader* txtreader = 0;
   XmlValidatingReader* reader = 0;
   String* filename = S"items.xml";

   try
   {  
      //Load the reader with the data file and ignore all white space nodes.         
      txtreader = new XmlTextReader(filename);
      txtreader->WhitespaceHandling = WhitespaceHandling::None;

      //Implement the validating reader over the text reader. 
      reader = new XmlValidatingReader(txtreader);
      reader->ValidationType = ValidationType::None;

      //Parse the file and display each of the nodes.
      while (reader->Read())
      {
         switch (reader->NodeType)
         {
         case XmlNodeType::Element:
            Console::Write(S"<{0}>", reader->Name);
            break;
         case XmlNodeType::Text:
            Console::Write(reader->Value);
            break;
         case XmlNodeType::CDATA:
            Console::Write(S"<![CDATA[{0}]]>", reader->Value);
            break;
         case XmlNodeType::ProcessingInstruction:
            Console::Write(S"<?{0} {1}?>", reader->Name, reader->Value);
            break;
         case XmlNodeType::Comment:
            Console::Write(S"<!--{0}-->", reader->Value);
            break;
         case XmlNodeType::XmlDeclaration:
            Console::Write(S"<?xml version='1.0'?>");
            break;
         case XmlNodeType::Document:
            break;
         case XmlNodeType::DocumentType:
            Console::Write(S"<!DOCTYPE {0} [{1}]", reader->Name, reader->Value);
            break;
         case XmlNodeType::EntityReference:
            Console::Write(reader->Name);
            break;
         case XmlNodeType::EndElement:
            Console::Write(S"</{0}>", reader->Name);
            break;
         }       
      }           
   }

   __finally
   {
      if (reader!=0)
         reader->Close();
   }
}

The example uses the file, items.xml, as input.

<?xml version="1.0"?>
<!-- This is a sample XML document -->
<!DOCTYPE Items [<!ENTITY number "123">]>
<Items>
  <Item>Test with an entity: &number;</Item>
  <Item>test with a child element <more/> stuff</Item>
  <Item>test with a CDATA section <![CDATA[<456>]]> def</Item>
  <Item>Test with a char entity: &#65;</Item>
  <!-- Fourteen chars in this element.-->
  <Item>1234567890ABCD</Item>
</Items>

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

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

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