XmlAttributes.XmlAnyElements 屬性

參考

定義

命名空間:: System.Xml.Serialization

組件:: System.Xml.XmlSerializer.dll

組件:: System.Xml.dll

組件:: netstandard.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得要覆寫的 XmlAnyElementAttribute 物件的集合。

public:
 property System::Xml::Serialization::XmlAnyElementAttributes ^ XmlAnyElements { System::Xml::Serialization::XmlAnyElementAttributes ^ get(); };

public System.Xml.Serialization.XmlAnyElementAttributes XmlAnyElements { get; }

member this.XmlAnyElements : System.Xml.Serialization.XmlAnyElementAttributes

Public ReadOnly Property XmlAnyElements As XmlAnyElementAttributes

屬性值

XmlAnyElementAttributes

XmlAnyElementAttributes 物件，表示 XmlAnyElementAttribute 物件的集合。

範例

下列範例會建立新的 XmlAnyElementAttribute 物件，並將它加入至透過 XmlAnyElements 屬性存取的物件集合。然後，物件 XmlAttributes 會新增至 XmlAttributeOverrides 物件，以用來建立 XmlSerializer 物件。 XmlSerializer用來序列化或還原序列化物件。若要查看使用 XmlAnyElementAttributes 屬性的效果，請在方法中 Main 執行 SerializeObject 方法，以建立名為「UnknownElements.xml」的 XML 檔。編輯產生的檔，以包含其他未知) 元素 (。 SerializeObject將方法中的 Main 呼叫批註化，並取消批註方法的呼叫 DeserializeObject ，這會列印出任何未知 XML 元素的名稱和值。

#using <System.dll>
#using <System.xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml::Serialization;
using namespace System::Xml;
public ref class Group
{
public:
   String^ GroupName;

   [XmlAnyElement]
   array<Object^>^Things;
};

void SerializeObject( String^ filename );
void DeserializeObject( String^ filename );
XmlSerializer^ CreateOverrideSerializer();
int main()
{
   // 1 Run this and create the XML document.
   // 2 Add new elements to the XML document.
   // 3 Comment out the next line, and uncomment
   // the DeserializeObject line to deserialize the
   // XML document and see unknown elements.
   SerializeObject( "UnknownElements.xml" );

   // DeserializeObject(S"UnknownElements.xml");
}

void SerializeObject( String^ filename )
{
   XmlSerializer^ ser = gcnew XmlSerializer( Group::typeid );
   TextWriter^ writer = gcnew StreamWriter( filename );
   Group^ g = gcnew Group;
   g->GroupName = "MyGroup";
   ser->Serialize( writer, g );
   writer->Close();
}

void DeserializeObject( String^ filename )
{
   XmlSerializer^ ser = CreateOverrideSerializer();

   // A FileStream is needed to read the XML document.
   FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
   Group^ g = safe_cast<Group^>(ser->Deserialize( fs ));
   fs->Close();
   Console::WriteLine( g->GroupName );
   Console::WriteLine( g->Things->Length );
   for ( int i = 0; i < g->Things->Length; ++i )
   {
      XmlElement^ xelement = safe_cast<XmlElement^>(g->Things[ i ]);
      Console::WriteLine( "{0}: {1}", xelement->Name, xelement->InnerXml );
   }
}

XmlSerializer^ CreateOverrideSerializer()
{
   XmlAnyElementAttribute^ myAnyElement = gcnew XmlAnyElementAttribute;
   XmlAttributeOverrides^ xOverride = gcnew XmlAttributeOverrides;
   XmlAttributes^ xAtts = gcnew XmlAttributes;
   xAtts->XmlAnyElements->Add( myAnyElement );
   xOverride->Add( Group::typeid, "Things", xAtts );
   return gcnew XmlSerializer( Group::typeid,xOverride );
}

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

public class Group{
   public string GroupName;
   [XmlAnyElement]
   public object[]Things;
}

public class Test{
   static void Main(){
      Test t = new Test();
      // 1 Run this and create the XML document.
      // 2 Add new elements to the XML document.
      // 3 Comment out the new line, and uncomment
      // the DeserializeObject line to deserialize the
      // XML document and see unknown elements.
      t.SerializeObject("UnknownElements.xml");
     
      // t.DeserializeObject("UnknownElements.xml");
   }

   private void SerializeObject(string filename){
      XmlSerializer ser = new XmlSerializer(typeof (Group));
      TextWriter writer = new StreamWriter(filename);
      Group g = new Group();
      g.GroupName = "MyGroup";
      ser.Serialize(writer, g);
      writer.Close();
   }

   private void DeserializeObject(string filename){

      XmlSerializer ser = CreateOverrideSerializer();
      // A FileStream is needed to read the XML document.
      FileStream fs = new FileStream(filename, FileMode.Open);
     Group g = (Group)
        ser.Deserialize(fs);
     fs.Close();
     Console.WriteLine(g.GroupName);
     Console.WriteLine(g.Things.Length);
     foreach(XmlElement xelement in g.Things){
     Console.WriteLine(xelement.Name + ": " + xelement.InnerXml);
     }
   }

   private XmlSerializer CreateOverrideSerializer(){
      XmlAnyElementAttribute myAnyElement = 
      new XmlAnyElementAttribute();
      XmlAttributeOverrides xOverride = 
      new XmlAttributeOverrides();
      XmlAttributes xAtts = new XmlAttributes();
      xAtts.XmlAnyElements.Add(myAnyElement);
      xOverride.Add(typeof(Group), "Things", xAtts);
      return new XmlSerializer(typeof(Group) , xOverride);
   }
}

Imports System.IO
Imports System.Xml.Serialization
Imports System.Xml

Public Class Group
   Public GroupName As String 
   <XmlAnyElement> _
   Public Things () As object
End Class

Public Class Test
   Shared Sub Main()
      Dim t As Test = New Test()
      ' 1 Run this and create the XML document.
      ' 2 Add New elements to the XML document.
      ' 3 Comment out the New line, and uncomment
      ' the DeserializeObject line to deserialize the
      ' XML document and see unknown elements.
     t.SerializeObject("UnknownElements.xml")
     
      't.DeserializeObject("UnknownElements.xml")
   End Sub

   Private Sub SerializeObject(filename As String)
      Dim ser As XmlSerializer = New XmlSerializer(GetType (Group))
      Dim writer As TextWriter = New StreamWriter(filename)
      
      Dim g As Group = New Group()
      g.GroupName = "MyGroup"
      ser.Serialize(writer, g)
      writer.Close()
   End Sub

   
   Private Sub DeserializeObject(filename As String)

      Dim ser As XmlSerializer = CreateOverrideSerializer()
      ' 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()
     Console.WriteLine(g.GroupName)
     Console.WriteLine(g.Things.Length)
     Dim xelement As XmlELement
     for each xelement in g.Things
        Console.WriteLine(xelement.Name &": " & xelement.InnerXml)
     next
   End Sub
   

   Private Function CreateOverrideSerializer() As XmlSerializer 
      Dim myAnyElement As XmlAnyElementAttribute = _
      New XmlAnyElementAttribute()
      Dim xOverride As XmlAttributeOverrides = _
      New XmlAttributeOverrides()
      Dim xAtts As XmlAttributes = New XmlAttributes()
      xAtts.XmlAnyElements.Add(myAnyElement)
      xOverride.Add(GetType(Group), "Things", xAtts)
      return New XmlSerializer(GetType(Group) , xOverride)
   End Function
End Class

備註

XmlAnyElementAttribute可以套用至在還原序列化時傳回物件陣列的成員 XmlElement 。這可讓 XmlSerializer 還原序列化物件中沒有對應成員的任何專案還原序列化，因此這些專案對是「未知」 XmlSerializer 的。當 XML Web 服務已改變 XML 資料流程，或知道亂數據一律包含在 XML 資料流程中時，這會很有用。

屬性 XmlAnyElements 可讓您覆寫成員的序列化，以做為已套用的成員 XmlAnyElementAttribute 。

適用於

另請參閱

XmlAnyAttribute

共用方式為

XmlAttributes.XmlAnyElements 屬性

定義

屬性值

範例

備註

適用於

另請參閱

其他資源