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XmlSerializer Class

Serializes and deserializes objects into and from XML documents. The XmlSerializer enables you to control how objects are encoded into XML.

For a list of all members of this type, see XmlSerializer Members.

System.Object
   System.Xml.Serialization.XmlSerializer

[Visual Basic]
Public Class XmlSerializer
[C#]
public class XmlSerializer
[C++]
public __gc class XmlSerializer
[JScript]
public class XmlSerializer

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Remarks

XML serialization is the process of converting an object's public properties and fields to a serial format (in this case, XML) for storage or transport. Deserialization re-creates the object in its original state from the XML output. You can thus think of serialization as a way of saving the state of an object into a stream or buffer. For example, ASP.NET uses the XmlSerializer class to encode XML Web service messages.

The data in your objects is described using programming language constructs like classes, fields, properties, primitive types, arrays, and even embedded XML in the form of XmlElement or XmlAttribute objects. You have the option of creating your own classes, annotated with attributes, or using the XML Schema Definition Tool (Xsd.exe) to generate the classes based on an existing XML Schema definition (XSD) document. If you have an XML Schema, you can run the Xsd.exe to produce a set of classes that are strongly typed to the schema and annotated with attributes to adhere to the schema when serialized.

To transfer data between objects and XML requires a mapping from the programming language constructs to XML Schema and vice versa. The XmlSerializer, and related tools like Xsd.exe, provide the bridge between these two technologies at both design time and run time. At design time, use the Xsd.exe to produce an XML Schema document (.xsd) from your custom classes, or to produce classes from a given schema. In either case, the classes are annotated with custom attributes to instruct the XmlSerializer how to map between the XML Schema system to the common language runtime. At run time, instances of the classes can be serialized into XML documents that follow the given schema. Likewise, these XML documents can be deserialized into run time objects. (Note that the XML Schema is optional, and not needed at design time or run time.)

To control the generated XML, you can apply special attributes to classes and members. For example, to specify a different XML element name, apply an XmlElementAttribute to a public field or property, and set the ElementName property. For a list of all attributes, see Attributes That Control XML Serialization.

If the XML generated must conform to section 5 of the World Wide Consortium (www.w3.org) document, "Simple Object Access Protocol (SOAP) 1.1", you must construct the XmlSerializer with an XmlTypeMapping. To further control the encoded SOAP XML, use the attributes listed in Attributes That Control Encoded SOAP Serialization.

With the XmlSerializer you can take advantage of working with strongly typed classes and still have the flexibility of XML. Using fields or properties of type XmlElement, XmlAttribute or XmlNode in your strongly typed classes, you can read parts of the XML document directly into XML objects.

If you work with extensible XML schemas, you can also use the XmlAnyElementAttribute and XmlAnyAttributeAttribute attributes to serialize and deserialize elements or attributes that are not found in the original schema. To use the objects, apply an XmlAnyElementAttribute to a field that returns an array of XmlElement objects, or apply an XmlAnyAttributeAttribute to a field that returns an array of XmlAttribute objects.

If a property or field returns a complex object (such as an array or a class instance), the XmlSerializer converts it to an element nested within the main XML document. For example, the first class in the following C# code returns an instance of the second class.

public class MyClass
{
 public MyObject MyObjectProperty;
}
public class MyObject
{
 public string ObjectName;
}

The serialized, XML output looks like this:

<MyClass>
 <MyObjectProperty>
 <Objectname>My String</ObjectName>
 </MyObjectProperty>
</MyClass>

If a schema includes an element that is optional (minOccurs = '0'), or if the schema includes a default value, you have two options. One option is to use System.ComponentModel.DefaultValueAttribute to specify the default value, as shown in the C# and Visual Basic code below.

' Visual Basic
Public Class PurchaseOrder
   <System.ComponentModel.DefaultValueAttribute ("2002")> _
   Public Year As String
End Class
// C#
public class PurchaseOrder
{
   [System.ComponentModel.DefaultValueAttribute ("2002")]
   public string Year;
}

Another option is to use a special pattern to create a Boolean field recognized by the XmlSerializer, and to apply the XmlIgnoreAttribute to the field. The pattern is created in the form of propertyNameSpecified. For example, if there is a field named "MyFirstName" you would also create a field named "MyFirstNameSpecified" that instructs the XmlSerializer whether or not to generate the XML element named "MyFirstName". This is shown in the following C# and Visual Basic example.

' Visual Basic
Public Class OptionalOrder
   ' This field's value shouldn't be serialized 
   ' if it is uninitialized.
   Public FirstOrder As String
   ' Use the XmlIgnoreAttribute to ignore the 
   ' special field named "FirstOrderSpecified".
   <System.Xml.Serialization.XmlIgnoreAttribute> _
   Public FirstOrderSpecified As Boolean
End Class
' C#
public class OptionalOrder
{
   // This field shouldn't be serialized 
   // if it is uninitialized.
   public string FirstOrder;
   // Use the XmlIgnoreAttribute to ignore the 
   // special field named "FirstOrderSpecified".
   [System.Xml.Serialization.XmlIgnoreAttribute]
   public bool FirstOrderSpecified;
}

You can also override the serialization of any set of objects and their fields and properties by creating one of the appropriate attributes, and adding it to an XmlAttributes. Overriding serialization in this way has two uses: first, you can control and augment the serialization of objects found in a DLL, even if you don't have access to the source; second, you can create one set of serializable classes, but serialize the objects in multiple ways. For more details, see the XmlAttributeOverrides class.

To serialize an object, call the Serialize method. To deserialize an object, call the Deserialize method.

To add XML namespaces to an XML document, see XmlSerializerNamespaces.

Note   The XmlSerializer gives special treatment to classes that implement IEnumerable or ICollection. A class that implements IEnumerable must implement a public Add method that takes a single parameter. The Add method's parameter must be of the same type as is returned from the Current property on the value returned from GetEnumerator, or one of that type's bases. A class that implements ICollection (such as CollectionBase) in addition to IEnumerable must have a public Item indexed property (indexer in C#) that takes an integer, and it must have a public Count property of type integer. The parameter to the Add method must be the same type as is returned from the Item property, or one of that type's bases. For classes implementing ICollection, values to be serialized will be retrieved from the indexed Item property, not by calling GetEnumerator.

Example

[Visual Basic, C#, C++] The following example contains two main classes: PurchaseOrder and Test. The PurchaseOrder class contains information about a single purchase. The Test class contains the methods that create the purchase order, and that read the created purchase order.

[Visual Basic] 
Imports System
Imports System.Xml
Imports System.Xml.Serialization
Imports System.IO
Imports Microsoft.VisualBasic


' The XmlRootAttribute allows you to set an alternate name
' (PurchaseOrder) of the XML element, the element namespace; by
' default, the XmlSerializer uses the class name. The attribute
' also allows you to set the XML namespace for the element.  Lastly,
' the attribute sets the IsNullable property, which specifies whether
' the xsi:null attribute appears if the class instance is set to
' a null reference. 
<XmlRootAttribute("PurchaseOrder", _
 Namespace := "http://www.cpandl.com", IsNullable := False)> _
Public Class PurchaseOrder
    
    Public ShipTo As Address
    Public OrderDate As String
    ' The XmlArrayAttribute changes the XML element name
    ' from the default of "OrderedItems" to "Items". 
    <XmlArrayAttribute("Items")> _
    Public OrderedItems() As OrderedItem
    Public SubTotal As Decimal
    Public ShipCost As Decimal
    Public TotalCost As Decimal
End Class 'PurchaseOrder


Public Class Address
    ' The XmlAttribute instructs the XmlSerializer to serialize the Name
    ' field as an XML attribute instead of an XML element (the default
    ' behavior). 
    <XmlAttribute()> _
    Public Name As String
    Public Line1 As String
    
    ' Setting the IsNullable property to false instructs the
    ' XmlSerializer that the XML attribute will not appear if
    ' the City field is set to a null reference. 
    <XmlElementAttribute(IsNullable := False)> _
    Public City As String
    Public State As String
    Public Zip As String
End Class 'Address


Public Class OrderedItem
    Public ItemName As String
    Public Description As String
    Public UnitPrice As Decimal
    Public Quantity As Integer
    Public LineTotal As Decimal
    
    
    ' Calculate is a custom method that calculates the price per item,
    ' and stores the value in a field. 
    Public Sub Calculate()
        LineTotal = UnitPrice * Quantity
    End Sub 'Calculate
End Class 'OrderedItem


Public Class Test
    
   Public Shared Sub Main()
      ' Read and write purchase orders.
      Dim t As New Test()
      t.CreatePO("po.xml")
      t.ReadPO("po.xml")
   End Sub 'Main
    
   Private Sub CreatePO(filename As String)
      ' Create an instance of the XmlSerializer class;
      ' specify the type of object to serialize.
      Dim serializer As New XmlSerializer(GetType(PurchaseOrder))
      Dim writer As New StreamWriter(filename)
      Dim po As New PurchaseOrder()
        
      ' Create an address to ship and bill to.
      Dim billAddress As New Address()
      billAddress.Name = "Teresa Atkinson"
      billAddress.Line1 = "1 Main St."
      billAddress.City = "AnyTown"
      billAddress.State = "WA"
      billAddress.Zip = "00000"
      ' Set ShipTo and BillTo to the same addressee.
      po.ShipTo = billAddress
      po.OrderDate = System.DateTime.Now.ToLongDateString()
        
      ' Create an OrderedItem object.
      Dim i1 As New OrderedItem()
      i1.ItemName = "Widget S"
      i1.Description = "Small widget"
      i1.UnitPrice = CDec(5.23)
      i1.Quantity = 3
      i1.Calculate()
        
      ' Insert the item into the array.
      Dim items(0) As OrderedItem
      items(0) = i1
      po.OrderedItems = items
      ' Calculate the total cost.
      Dim subTotal As New Decimal()
      Dim oi As OrderedItem
      For Each oi In  items
         subTotal += oi.LineTotal
      Next oi
      po.SubTotal = subTotal
      po.ShipCost = CDec(12.51)
      po.TotalCost = po.SubTotal + po.ShipCost
      ' Serialize the purchase order, and close the TextWriter.
      serializer.Serialize(writer, po)
      writer.Close()
   End Sub 'CreatePO
    
   Protected Sub ReadPO(filename As String)
      ' Create an instance of the XmlSerializer class;
      ' specify the type of object to be deserialized.
      Dim serializer As New XmlSerializer(GetType(PurchaseOrder))
      ' If the XML document has been altered with unknown
      ' nodes or attributes, handle them with the
      ' UnknownNode and UnknownAttribute events.
      AddHandler serializer.UnknownNode, AddressOf serializer_UnknownNode
      AddHandler serializer.UnknownAttribute, AddressOf serializer_UnknownAttribute
      
      ' A FileStream is needed to read the XML document.
      Dim fs As New FileStream(filename, FileMode.Open)
      ' Declare an object variable of the type to be deserialized.
      Dim po As PurchaseOrder
      ' Use the Deserialize method to restore the object's state with
      ' data from the XML document. 
      po = CType(serializer.Deserialize(fs), PurchaseOrder)
      ' Read the order date.
      Console.WriteLine(("OrderDate: " & po.OrderDate))
        
      ' Read the shipping address.
      Dim shipTo As Address = po.ShipTo
      ReadAddress(shipTo, "Ship To:")
      ' Read the list of ordered items.
      Dim items As OrderedItem() = po.OrderedItems
      Console.WriteLine("Items to be shipped:")
      Dim oi As OrderedItem
      For Each oi In  items
         Console.WriteLine((ControlChars.Tab & oi.ItemName & ControlChars.Tab & _
         oi.Description & ControlChars.Tab & oi.UnitPrice & ControlChars.Tab & _
         oi.Quantity & ControlChars.Tab & oi.LineTotal))
      Next oi
      ' Read the subtotal, shipping cost, and total cost.
      Console.WriteLine(( New String(ControlChars.Tab, 5) & _
      " Subtotal"  & ControlChars.Tab & po.SubTotal))
      Console.WriteLine(New String(ControlChars.Tab, 5) & _
      " Shipping" & ControlChars.Tab & po.ShipCost )
      Console.WriteLine( New String(ControlChars.Tab, 5) & _
      " Total" &  New String(ControlChars.Tab, 2) & po.TotalCost)
    End Sub 'ReadPO
    
    Protected Sub ReadAddress(a As Address, label As String)
      ' Read the fields of the Address object.
      Console.WriteLine(label)
      Console.WriteLine(ControlChars.Tab & a.Name)
      Console.WriteLine(ControlChars.Tab & a.Line1)
      Console.WriteLine(ControlChars.Tab & a.City)
      Console.WriteLine(ControlChars.Tab & a.State)
      Console.WriteLine(ControlChars.Tab & a.Zip)
      Console.WriteLine()
    End Sub 'ReadAddress
        
    Protected Sub serializer_UnknownNode(sender As Object, e As XmlNodeEventArgs)
        Console.WriteLine(("Unknown Node:" & e.Name & ControlChars.Tab & e.Text))
    End Sub 'serializer_UnknownNode
    
    
    Protected Sub serializer_UnknownAttribute(sender As Object, e As XmlAttributeEventArgs)
        Dim attr As System.Xml.XmlAttribute = e.Attr
        Console.WriteLine(("Unknown attribute " & attr.Name & "='" & attr.Value & "'"))
    End Sub 'serializer_UnknownAttribute
End Class 'Test

[C#] 
using System;
using System.Xml;
using System.Xml.Serialization;
using System.IO;

/* The XmlRootAttribute allows you to set an alternate name 
   (PurchaseOrder) of the XML element, the element namespace; by 
   default, the XmlSerializer uses the class name. The attribute 
   also allows you to set the XML namespace for the element.  Lastly,
   the attribute sets the IsNullable property, which specifies whether 
   the xsi:null attribute appears if the class instance is set to 
   a null reference. */
[XmlRootAttribute("PurchaseOrder", Namespace="http://www.cpandl.com", 
IsNullable = false)]
public class PurchaseOrder
{
   public Address ShipTo;
   public string OrderDate; 
   /* The XmlArrayAttribute changes the XML element name
    from the default of "OrderedItems" to "Items". */
   [XmlArrayAttribute("Items")]
   public OrderedItem[] OrderedItems;
   public decimal SubTotal;
   public decimal ShipCost;
   public decimal TotalCost;   
}
 
public class Address
{
   /* The XmlAttribute instructs the XmlSerializer to serialize the Name
      field as an XML attribute instead of an XML element (the default
      behavior). */
   [XmlAttribute]
   public string Name;
   public string Line1;

   /* Setting the IsNullable property to false instructs the 
      XmlSerializer that the XML attribute will not appear if 
      the City field is set to a null reference. */
   [XmlElementAttribute(IsNullable = false)]
   public string City;
   public string State;
   public string Zip;
}
 
public class OrderedItem
{
   public string ItemName;
   public string Description;
   public decimal UnitPrice;
   public int Quantity;
   public decimal LineTotal;

   /* Calculate is a custom method that calculates the price per item,
      and stores the value in a field. */
   public void Calculate()
   {
      LineTotal = UnitPrice * Quantity;
   }
}
 
public class Test
{
   public static void Main()
   {
      // Read and write purchase orders.
      Test t = new Test();
      t.CreatePO("po.xml");
      t.ReadPO("po.xml");
   }

   private void CreatePO(string filename)
   {
      // Create an instance of the XmlSerializer class;
      // specify the type of object to serialize.
      XmlSerializer serializer = 
      new XmlSerializer(typeof(PurchaseOrder));
      TextWriter writer = new StreamWriter(filename);
      PurchaseOrder po=new PurchaseOrder();
       
      // Create an address to ship and bill to.
      Address billAddress = new Address();
      billAddress.Name = "Teresa Atkinson";
      billAddress.Line1 = "1 Main St.";
      billAddress.City = "AnyTown";
      billAddress.State = "WA";
      billAddress.Zip = "00000";
      // Set ShipTo and BillTo to the same addressee.
      po.ShipTo = billAddress;
      po.OrderDate = System.DateTime.Now.ToLongDateString();
 
      // Create an OrderedItem object.
      OrderedItem i1 = new OrderedItem();
      i1.ItemName = "Widget S";
      i1.Description = "Small widget";
      i1.UnitPrice = (decimal) 5.23;
      i1.Quantity = 3;
      i1.Calculate();
 
      // Insert the item into the array.
      OrderedItem [] items = {i1};
      po.OrderedItems = items;
      // Calculate the total cost.
      decimal subTotal = new decimal();
      foreach(OrderedItem oi in items)
      {
         subTotal += oi.LineTotal;
      }
      po.SubTotal = subTotal;
      po.ShipCost = (decimal) 12.51; 
      po.TotalCost = po.SubTotal + po.ShipCost; 
      // Serialize the purchase order, and close the TextWriter.
      serializer.Serialize(writer, po);
      writer.Close();
   }
 
   protected void ReadPO(string filename)
   {
      // Create an instance of the XmlSerializer class;
      // specify the type of object to be deserialized.
      XmlSerializer serializer = new XmlSerializer(typeof(PurchaseOrder));
      /* If the XML document has been altered with unknown 
      nodes or attributes, handle them with the 
      UnknownNode and UnknownAttribute events.*/
      serializer.UnknownNode+= new 
      XmlNodeEventHandler(serializer_UnknownNode);
      serializer.UnknownAttribute+= new 
      XmlAttributeEventHandler(serializer_UnknownAttribute);
   
      // A FileStream is needed to read the XML document.
      FileStream fs = new FileStream(filename, FileMode.Open);
      // Declare an object variable of the type to be deserialized.
      PurchaseOrder po;
      /* Use the Deserialize method to restore the object's state with
      data from the XML document. */
      po = (PurchaseOrder) serializer.Deserialize(fs);
      // Read the order date.
      Console.WriteLine ("OrderDate: " + po.OrderDate);
  
      // Read the shipping address.
      Address shipTo = po.ShipTo;
      ReadAddress(shipTo, "Ship To:");
      // Read the list of ordered items.
      OrderedItem [] items = po.OrderedItems;
      Console.WriteLine("Items to be shipped:");
      foreach(OrderedItem oi in items)
      {
         Console.WriteLine("\t"+
         oi.ItemName + "\t" + 
         oi.Description + "\t" +
         oi.UnitPrice + "\t" +
         oi.Quantity + "\t" +
         oi.LineTotal);
      }
      // Read the subtotal, shipping cost, and total cost.
      Console.WriteLine("\t\t\t\t\t Subtotal\t" + po.SubTotal);
      Console.WriteLine("\t\t\t\t\t Shipping\t" + po.ShipCost); 
      Console.WriteLine("\t\t\t\t\t Total\t\t" + po.TotalCost);
   }
 
   protected void ReadAddress(Address a, string label)
   {
      // Read the fields of the Address object.
      Console.WriteLine(label);
      Console.WriteLine("\t"+ a.Name );
      Console.WriteLine("\t" + a.Line1);
      Console.WriteLine("\t" + a.City);
      Console.WriteLine("\t" + a.State);
      Console.WriteLine("\t" + a.Zip );
      Console.WriteLine();
   }

   protected void serializer_UnknownNode
   (object sender, XmlNodeEventArgs e)
   {
      Console.WriteLine("Unknown Node:" +   e.Name + "\t" + e.Text);
   }

   protected void serializer_UnknownAttribute
   (object sender, XmlAttributeEventArgs e)
   {
      System.Xml.XmlAttribute attr = e.Attr;
      Console.WriteLine("Unknown attribute " + 
      attr.Name + "='" + attr.Value + "'");
   }
}

[C++] 
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Xml::Serialization;
using namespace System::IO;

public __gc class Address;
public __gc class OrderedItem;

/* The XmlRootAttribute allows you to set an alternate name 
   (PurchaseOrder) of the XML element, the element namespace; by 
   default, the XmlSerializer uses the class name. The attribute 
   also allows you to set the XML namespace for the element.  Lastly,
   the attribute sets the IsNullable property, which specifies whether 
   the xsi:null attribute appears if the class instance is set to 
   a null reference. */
[XmlRootAttribute(S"PurchaseOrder", Namespace=S"http://www.cpandl.com", 
IsNullable = false)]
public __gc class PurchaseOrder
{
public:
   Address* ShipTo;
   String* OrderDate; 
   /* The XmlArrayAttribute changes the XML element name
    from the default of "OrderedItems" to "Items". */
   [XmlArrayAttribute(S"Items")]
   OrderedItem* OrderedItems[];
   Decimal SubTotal;
   Decimal ShipCost;
   Decimal TotalCost;   
};
 
public __gc class Address
{
   /* The XmlAttribute instructs the XmlSerializer to serialize the Name
      field as an XML attribute instead of an XML element (the default
      behavior). */
public:
   [XmlAttributeAttribute]
   String* Name;
   String* Line1;

   /* Setting the IsNullable property to false instructs the 
      XmlSerializer that the XML attribute will not appear if 
      the City field is set to a null reference. */
public:
   [XmlElementAttribute(IsNullable = false)]
   String* City;
   String* State;
   String* Zip;
};
 
public __gc class OrderedItem
{
public:
   String* ItemName;
   String* Description;
   Decimal UnitPrice;
   int Quantity;
   Decimal LineTotal;

   /* Calculate is a custom method that calculates the price per item,
      and stores the value in a field. */
   void Calculate()
   {
      LineTotal = UnitPrice * Quantity;
   }
};
 
public __gc class Test
{
public:
   static void main()
   {
      // Read and write purchase orders.
      Test* t = new Test();
      t->CreatePO(S"po.xml");
      t->ReadPO(S"po.xml");
   }

private:
   void CreatePO(String* filename)
   {
      // Create an instance of the XmlSerializer class;
      // specify the type of object to serialize.
      XmlSerializer* serializer = 
      new XmlSerializer(__typeof(PurchaseOrder));
      TextWriter* writer = new StreamWriter(filename);
      PurchaseOrder* po=new PurchaseOrder();
       
      // Create an address to ship and bill to.
      Address* billAddress = new Address();
      billAddress->Name = S"Teresa Atkinson";
      billAddress->Line1 = S"1 Main St.";
      billAddress->City = S"AnyTown";
      billAddress->State = S"WA";
      billAddress->Zip = S"00000";
      // Set ShipTo and BillTo to the same addressee.
      po->ShipTo = billAddress;
      po->OrderDate = System::DateTime::Now.ToLongDateString();
 
      // Create an OrderedItem object.
      OrderedItem* i1 = new OrderedItem();
      i1->ItemName = S"Widget S";
      i1->Description = S"Small widget";
      i1->UnitPrice = (Decimal) 5.23;
      i1->Quantity = 3;
      i1->Calculate();
 
      // Insert the item into the array.
      OrderedItem* items[] = {i1};
      po->OrderedItems = items;
      // Calculate the total cost.
      Decimal subTotal = Decimal( 0 );
      System::Collections::IEnumerator* myEnum = items->GetEnumerator();
      while (myEnum->MoveNext())
      {
         OrderedItem* oi = __try_cast<OrderedItem*>(myEnum->Current);
         subTotal = subTotal + oi->LineTotal;
      }
      po->SubTotal = subTotal;
      po->ShipCost = (Decimal) 12.51; 
      po->TotalCost = po->SubTotal + po->ShipCost; 
      // Serialize the purchase order, and close the TextWriter.
      serializer->Serialize(writer, po);
      writer->Close();
   }
 
protected:
   void ReadPO(String* filename)
   {
      // Create an instance of the XmlSerializer class;
      // specify the type of object to be deserialized.
      XmlSerializer* serializer = new XmlSerializer(__typeof(PurchaseOrder));
      /* If the XML document has been altered with unknown 
      nodes or attributes, handle them with the 
      UnknownNode and UnknownAttribute events.*/
      serializer->UnknownNode+= new 
      XmlNodeEventHandler(this, &Test::serializer_UnknownNode);
      serializer->UnknownAttribute+= new 
      XmlAttributeEventHandler(this, &Test::serializer_UnknownAttribute);
   
      // A FileStream is needed to read the XML document.
      FileStream* fs = new FileStream(filename, FileMode::Open);
      // Declare an object variable of the type to be deserialized.
      PurchaseOrder* po;
      /* Use the Deserialize method to restore the object's state with
      data from the XML document. */
      po = dynamic_cast<PurchaseOrder*> (serializer->Deserialize(fs));
      // Read the order date.
      Console::WriteLine (S"OrderDate: {0}", po->OrderDate);
  
      // Read the shipping address.
      Address* shipTo = po->ShipTo;
      ReadAddress(shipTo, S"Ship To:");
      // Read the list of ordered items.
      OrderedItem* items[] = po->OrderedItems;
      Console::WriteLine(S"Items to be shipped:");
      System::Collections::IEnumerator* myEnum1 = items->GetEnumerator();
      while (myEnum1->MoveNext())
      {
          OrderedItem* oi = __try_cast<OrderedItem*>(myEnum1->Current);
         Console::WriteLine(S"\t{0}\t{1}\t{2}\t{3}\t{4}", oi->ItemName, oi->Description, __box(oi->UnitPrice), __box(oi->Quantity), oi->LineTotal);
      }
      // Read the subtotal, shipping cost, and total cost.
      Console::WriteLine(S"\t\t\t\t\t Subtotal\t{0}", __box(po->SubTotal));
      Console::WriteLine(S"\t\t\t\t\t Shipping\t{0}", __box(po->ShipCost)); 
      Console::WriteLine(S"\t\t\t\t\t Total\t\t{0}", __box(po->TotalCost));
   }
 
   void ReadAddress(Address* a, String* label)
   {
      // Read the fields of the Address object.
      Console::WriteLine(label);
      Console::WriteLine(S"\t{0}", a->Name );
      Console::WriteLine(S"\t{0}", a->Line1);
      Console::WriteLine(S"\t{0}", a->City);
      Console::WriteLine(S"\t{0}", a->State);
      Console::WriteLine(S"\t{0}", a->Zip );
      Console::WriteLine();
   }

   void serializer_UnknownNode(Object* /*sender*/, XmlNodeEventArgs* e)
   {
      Console::WriteLine(S"Unknown Node:{0}\t{1}", e->Name, e->Text);
   }

   void serializer_UnknownAttribute(Object* /*sender*/, XmlAttributeEventArgs* e)
   {
      System::Xml::XmlAttribute* attr = e->Attr;
      Console::WriteLine(S"Unknown attribute {0}='{1}'", attr->Name, attr->Value);
   }
};

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

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Namespace: System.Xml.Serialization

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

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

See Also

XmlSerializer Members | System.Xml.Serialization Namespace | Introducing XML Serialization | Controlling XML Serialization Using Attributes | Examples of XML Serialization | The XML Schema Definition Tool and XML Serialization | XmlAttributeOverrides | XmlAttributes

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