XmlNodeEventArgs XmlNodeEventArgs XmlNodeEventArgs XmlNodeEventArgs Class

Definition

Provides data for the UnknownNode event.

public ref class XmlNodeEventArgs : EventArgs
public class XmlNodeEventArgs : EventArgs
type XmlNodeEventArgs = class
    inherit EventArgs
Public Class XmlNodeEventArgs
Inherits EventArgs
Inheritance
XmlNodeEventArgsXmlNodeEventArgsXmlNodeEventArgsXmlNodeEventArgs

Examples

The following example uses the UnknownNode event of the XmlSerializer to print various properties of an unknown XML node that is encountered when calling the XmlSerializer class's Deserialize method.

#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::Serialization;

public ref class Group
{
public:

   // Only the GroupName field will be known.
   String^ GroupName;
};

public ref class Test
{
public:
   static void main()
   {
      Test^ t = gcnew Test;
      t->DeserializeObject( "UnknownNodes.xml" );
   }

private:
   void DeserializeObject( String^ filename )
   {
      XmlSerializer^ mySerializer = gcnew XmlSerializer( Group::typeid );
      FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
      mySerializer->UnknownNode += gcnew XmlNodeEventHandler( this, &Test::serializer_UnknownNode );
      Group^ myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( fs ));
      fs->Close();
   }

private:
   void serializer_UnknownNode( Object^ /*sender*/, XmlNodeEventArgs^ e )
   {
      Console::WriteLine( "UnknownNode Name: {0}", e->Name );
      Console::WriteLine( "UnknownNode LocalName: {0}", e->LocalName );
      Console::WriteLine( "UnknownNode Namespace URI: {0}", e->NamespaceURI );
      Console::WriteLine( "UnknownNode Text: {0}", e->Text );
      XmlNodeType myNodeType = e->NodeType;
      Console::WriteLine( "NodeType: {0}", myNodeType );
      Group^ myGroup = dynamic_cast<Group^>(e->ObjectBeingDeserialized);
      Console::WriteLine( "GroupName: {0}", myGroup->GroupName );
      Console::WriteLine();
   }
};

int main()
{
   Test::main();
}

/* Paste this XML into a file named UnknownNodes:
<?xml version="1.0" encoding="utf-8"?>
<Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:coho = "http://www.cohowinery.com" 

xmlns:cp="http://www.cpandl.com">
   <coho:GroupName>MyGroup</coho:GroupName>
   <cp:GroupSize>Large</cp:GroupSize>
   <cp:GroupNumber>444</cp:GroupNumber>
   <coho:GroupBase>West</coho:GroupBase>
   <coho:ThingInfo>
      <Number>1</Number>
      <Name>Thing1</Name>
      <Elmo>
         <Glue>element</Glue>
      </Elmo>
   </coho:ThingInfo>
</Group>
*/
using System;
using System.IO;
using System.Xml;
using System.Xml.Serialization;

public class Group{
   // Only the GroupName field will be known.
   public string GroupName;
}

public class Test{
   static void Main(){
      Test t = new Test();
      t.DeserializeObject("UnknownNodes.xml");
   }

   private void DeserializeObject(string filename){
      XmlSerializer mySerializer = new XmlSerializer(typeof(Group));
      FileStream fs = new FileStream(filename, FileMode.Open);
      mySerializer.UnknownNode += new 
      XmlNodeEventHandler(serializer_UnknownNode);
      Group myGroup = (Group) mySerializer.Deserialize(fs);
      fs.Close();
   }
   private void serializer_UnknownNode
   (object sender, XmlNodeEventArgs e){
      Console.WriteLine
      ("UnknownNode Name: {0}", e.Name);
      Console.WriteLine
      ("UnknownNode LocalName: {0}" ,e.LocalName);
      Console.WriteLine
      ("UnknownNode Namespace URI: {0}", e.NamespaceURI);
      Console.WriteLine
      ("UnknownNode Text: {0}", e.Text);

      XmlNodeType myNodeType = e.NodeType;
      Console.WriteLine("NodeType: {0}", myNodeType);
 
      Group myGroup = (Group) e.ObjectBeingDeserialized;
      Console.WriteLine("GroupName: {0}", myGroup.GroupName);
      Console.WriteLine();
   }
}
/* Paste this XML into a file named UnknownNodes:
<?xml version="1.0" encoding="utf-8"?>
<Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:coho = "http://www.cohowinery.com" 

xmlns:cp="http://www.cpandl.com">
   <coho:GroupName>MyGroup</coho:GroupName>
   <cp:GroupSize>Large</cp:GroupSize>
   <cp:GroupNumber>444</cp:GroupNumber>
   <coho:GroupBase>West</coho:GroupBase>
   <coho:ThingInfo>
      <Number>1</Number>
      <Name>Thing1</Name>
      <Elmo>
         <Glue>element</Glue>
      </Elmo>
   </coho:ThingInfo>
</Group>
*/   
Imports System
Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization

Public Class Group
   ' Only the GroupName field will be known.
   Public GroupName As String
End Class

Public Class Test
   Shared Sub Main()
      Dim t As Test = New Test()
      t.DeserializeObject("UnknownNodes.xml")
   End Sub

   Private Sub DeserializeObject(filename As String )
      Dim mySerializer As XmlSerializer  = New XmlSerializer(GetType(Group))
      Dim fs As FileStream = New FileStream(filename, FileMode.Open)
      AddHandler mySerializer.UnknownNode, _
      AddressOf serializer_UnknownNode
      Dim myGroup As Group = _
      CType(mySerializer.Deserialize(fs), Group)
      fs.Close()
   End Sub
   
   Private Sub serializer_UnknownNode _
   (sender As object , e As XmlNodeEventArgs )
      Console.WriteLine _
      ("UnknownNode Name: {0}", e.Name)
      Console.WriteLine _
      ("UnknownNode LocalName: {0}" ,e.LocalName)
      Console.WriteLine _
      ("UnknownNode Namespace URI: {0}", e.NamespaceURI)
      Console.WriteLine _
      ("UnknownNode Text: {0}", e.Text)

      Dim myNodeType As XmlNodeType = e.NodeType
      Console.WriteLine("NodeType: {0}", myNodeType)
 
      Dim myGroup As Group = CType(e.ObjectBeingDeserialized, Group)
      Console.WriteLine("GroupName: {0}", myGroup.GroupName)
      Console.WriteLine()
   End Sub
End Class
' Paste this XML into a file named UnknownNodes:
'<?xml version="1.0" encoding="utf-8"?>
'<Group xmlns:xsi="http:'www.w3.org/2001/XMLSchema-instance" 

'xmlns:xsd="http:'www.w3.org/2001/XMLSchema" xmlns:coho = "http:'www.cohowinery.com" 

'xmlns:cp="http:'www.cpandl.com">
'   <coho:GroupName>MyGroup</coho:GroupName>
'   <cp:GroupSize>Large</cp:GroupSize>
'   <cp:GroupNumber>444</cp:GroupNumber>
'   <coho:GroupBase>West</coho:GroupBase>
'   <coho:ThingInfo>
'      <Number>1</Number>
'      <Name>Thing1</Name>
'         <Glue>element</Glue>
'  </coho:ThingInfo>
'/Group>

Remarks

For more information about how to handle events, see Handling and Raising Events.

The UnknownNode event can occur only when you call the Deserialize method.

Properties

LineNumber LineNumber LineNumber LineNumber

Gets the line number of the unknown XML node.

LinePosition LinePosition LinePosition LinePosition

Gets the position in the line of the unknown XML node.

LocalName LocalName LocalName LocalName

Gets the XML local name of the XML node being deserialized.

Name Name Name Name

Gets the name of the XML node being deserialized.

NamespaceURI NamespaceURI NamespaceURI NamespaceURI

Gets the namespace URI that is associated with the XML node being deserialized.

NodeType NodeType NodeType NodeType

Gets the type of the XML node being deserialized.

ObjectBeingDeserialized ObjectBeingDeserialized ObjectBeingDeserialized ObjectBeingDeserialized

Gets the object being deserialized.

Text Text Text Text

Gets the text of the XML node being deserialized.

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Applies to

See also