XmlElementEventArgs XmlElementEventArgs XmlElementEventArgs XmlElementEventArgs Class

定義

UnknownElement イベントのデータを提供します。Provides data for the UnknownElement event.

public ref class XmlElementEventArgs : EventArgs
public class XmlElementEventArgs : EventArgs
type XmlElementEventArgs = class
    inherit EventArgs
Public Class XmlElementEventArgs
Inherits EventArgs
継承
XmlElementEventArgsXmlElementEventArgsXmlElementEventArgsXmlElementEventArgs

次の例では、とGroupいう名前のクラスを UnknownElements という名前のファイルから逆シリアル化します。The following example deserializes a class named Group from a file named UnknownElements.xml. クラスに対応するメンバーを持たない要素がファイル内で見つかった場合、 UnknownElementイベントが発生します。Whenever an element is found in the file that has no corresponding member in the class, the UnknownElement event occurs. この例を試すには、UnknownElements という名前のファイルに次の XML コードを貼り付けます。To try the example, paste the following XML code into a file named UnknownElements.xml.

<?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">  
  <GroupName>MyGroup</GroupName>  
  <GroupSize>Large</GroupSize>  
  <GroupNumber>444</GroupNumber>  
  <GroupBase>West</GroupBase>  
</Group>  
#using <System.Xml.dll>
#using <System.dll>

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

public ref class Group
{
public:
   String^ GroupName;
};

public ref class Test
{
private:
   void Serializer_UnknownElement( Object^ sender, XmlElementEventArgs^ e )
   {
      Console::WriteLine( "Unknown Element" );
      Console::Write( "\t {0}", e->Element->Name );
      Console::WriteLine( " {0}", e->Element->InnerXml );
      Console::WriteLine( "\t LineNumber: {0}", e->LineNumber );
      Console::WriteLine( "\t LinePosition: {0}", e->LinePosition );
      Group^ x = dynamic_cast<Group^>(e->ObjectBeingDeserialized);
      Console::WriteLine( x->GroupName );
      Console::WriteLine( sender );
   }

public:
   void DeserializeObject( String^ filename )
   {
      XmlSerializer^ ser = gcnew XmlSerializer( Group::typeid );

      // Add a delegate to handle unknown element events.
      ser->UnknownElement += gcnew XmlElementEventHandler( this, &Test::Serializer_UnknownElement );

      // A FileStream is needed to read the XML document.
      FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
      Group^ g = dynamic_cast<Group^>(ser->Deserialize( fs ));
      fs->Close();
   }
};

int main()
{
   Test^ t = gcnew Test;

   // Deserialize the file containing unknown elements.
   t->DeserializeObject( "UnknownElements.xml" );
}
using System;
using System.IO;
using System.Xml.Serialization;
using System.Xml;
using System.Xml.Schema;

public class Group{
   public string GroupName;
}

public class Test{
   static void Main(){
      Test t = new Test();
      // Deserialize the file containing unknown elements.
      t.DeserializeObject("UnknownElements.xml");
   }
   private void Serializer_UnknownElement(object sender, XmlElementEventArgs e){
      Console.WriteLine("Unknown Element");
      Console.WriteLine("\t" + e.Element.Name + " " + e.Element.InnerXml);
      Console.WriteLine("\t LineNumber: " + e.LineNumber);
      Console.WriteLine("\t LinePosition: " + e.LinePosition);
      
      Group x  = (Group) e.ObjectBeingDeserialized;
      Console.WriteLine (x.GroupName);
      Console.WriteLine (sender.ToString());
   }
   private void DeserializeObject(string filename){
      XmlSerializer ser = new XmlSerializer(typeof(Group));
      // Add a delegate to handle unknown element events.
      ser.UnknownElement+=new XmlElementEventHandler(Serializer_UnknownElement);
      // A FileStream is needed to read the XML document.
     FileStream fs = new FileStream(filename, FileMode.Open);
     Group g = (Group) ser.Deserialize(fs);
     fs.Close();
   	}
}
Imports System.IO
Imports System.Xml.Serialization
Imports System.Xml
Imports System.Xml.Schema

Public Class Group
   Public GroupName As String 
End Class

Public Class Test
   Shared Sub Main()
      Dim t As Test = new Test()
      ' Deserialize the file containing unknown elements.
      t.DeserializeObject("UnknownElements.xml")
   End Sub

   Private Sub Serializer_UnknownElement _
   (sender As Object , e As XmlElementEventArgs)
      Console.WriteLine("Unknown Element")
      Console.WriteLine(ControlChars.Tab & e.Element.Name + " " & e.Element.InnerXml)
      Console.WriteLine(ControlChars.Tab & e.LineNumber & ":"  & e.LineNumber)
      Console.WriteLine(ControlChars.Tab & e.LinePosition & ":"   & e.LinePosition)
      
      Dim x As Group = CType( e.ObjectBeingDeserialized, Group)
      Console.WriteLine (x.GroupName)
      Console.WriteLine (sender.ToString())
   End Sub
   
   Private Sub DeserializeObject(filename As String)
      Dim ser As XmlSerializer = new XmlSerializer(GetType(Group))
      ' Add a delegate to handle unknown element events.
      AddHandler ser.UnknownElement, _
      AddressOf Serializer_UnknownElement 
      ' A FileStream is needed to read the XML document.
     Dim fs As FileStream  = new FileStream(filename, FileMode.Open)
     Dim g  As Group = CType(ser.Deserialize(fs),Group)
     fs.Close()
   End Sub
End Class

注釈

イベントの処理の詳細については、「イベントの処理と発生」および「イベントの処理と発生」を参照してください。For more information about handling events, see Handling and Raising Events and Handling and Raising Events.

イベントUnknownElementは、 Deserializeメソッドを呼び出した場合にのみ発生します。The UnknownElement event occurs only when you call the Deserialize method.

プロパティ

Element Element Element Element

不明な XML 要素を表すオブジェクトを取得します。Gets the object that represents the unknown XML element.

ExpectedElements ExpectedElements ExpectedElements ExpectedElements

XML ドキュメントのインスタンスに出現する可能性のある XML 要素名をコンマで区切ったリストとして取得します。Gets a comma-delimited list of XML element names expected to be in an XML document instance.

LineNumber LineNumber LineNumber LineNumber

XML リーダーが XmlTextReader の場合に、不明な要素が見つかった場所の行番号を取得します。Gets the line number where the unknown element was encountered if the XML reader is an XmlTextReader.

LinePosition LinePosition LinePosition LinePosition

XML リーダーが XmlTextReader の場合に、不明な要素が見つかった行内の位置を取得します。Gets the place in the line where the unknown element occurs if the XML reader is an XmlTextReader.

ObjectBeingDeserialized ObjectBeingDeserialized ObjectBeingDeserialized ObjectBeingDeserialized

XmlSerializer が逆シリアル化しているオブジェクトを取得します。Gets the object the XmlSerializer is deserializing.

メソッド

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

指定したオブジェクトが、現在のオブジェクトと等しいかどうかを判断します。Determines whether the specified object is equal to the current object.

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

既定のハッシュ関数として機能します。Serves as the default hash function.

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

現在のインスタンスの Type を取得します。Gets the Type of the current instance.

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

現在の Object の簡易コピーを作成します。Creates a shallow copy of the current Object.

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

現在のオブジェクトを表す文字列を返します。Returns a string that represents the current object.

(Inherited from Object)

適用対象