XmlTypeMapping Class
Contains a mapping of one type to another.
For a list of all members of this type, see XmlTypeMapping Members.
System.Object
System.Xml.Serialization.XmlMapping
System.Xml.Serialization.XmlTypeMapping
[Visual Basic] Public Class XmlTypeMapping Inherits XmlMapping [C#] public class XmlTypeMapping : XmlMapping [C++] public __gc class XmlTypeMapping : public XmlMapping [JScript] public class XmlTypeMapping extends XmlMapping
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
The XmlTypeMapping class is used to serialize an object as encoded SOAP XML. The resulting XML conforms to section 5 of the World Wide Web Consortium (www.w3.org) document, "Simple Object Access Protocol (SOAP) 1.1". Create an XmlTypeMapping by calling the ImportTypeMapping method of the SoapReflectionImporter class. Use the XmlTypeMapping to construct an instance of the XmlSerializer class. To control the serialization, use one of the attributes listed in Attributes That Control Encoded SOAP Serialization.
Example
[Visual Basic, C#, C++] The following example serializes an instance of a class named Transportation that contains a field named Vehicle. A SoapElementAttribute is applied to the field. When the field is serialized, the XML element name is "Wheels" instead of "Vehicle". The SerializeOverride method creates a SoapElementAttribute and sets the SoapElement property of a SoapAttributes to the SoapElementAttribute. The SoapAttributes is added to a SoapAttributeOverrides that is used to create an XmlTypeMapping. An XmlSerializer is constructed with the XmlTypeMapping, and an instance of the Transportation class is again serialized. Because the SoapElementAttribute is used to override the serialization, the generated XML element name is now "Truck" instead of "Wheels".
[Visual Basic] Imports System Imports System.IO Imports System.Xml.Serialization Imports System.Collections Imports System.Xml Imports System.Text Public Class Transportation ' The SoapElementAttribute specifies that the ' generated XML element name will be "Wheels" ' instead of "Vehicle". <SoapElement("Wheels")> Public Vehicle As String <SoapElement(DataType:= "dateTime")> _ public CreationDate As DateTime <SoapElement(IsNullable:= true)> _ public thing As Thing End Class Public Class Thing <SoapElement(IsNullable:=true)> public ThingName As string End Class Public Class Test Shared Sub Main() Dim t As Test = New Test() t.SerializeObject("SoapElementOriginalVb.xml") t.SerializeOverride("SoapElementOverrideVb.xml") Console.WriteLine("Finished writing two XML files.") End Sub ' Return an XmlSerializer used for overriding. Public Function CreateSoapOverrider() As XmlSerializer ' Create the SoapAttributes and SoapAttributeOverrides objects. Dim soapAttrs As SoapAttributes = New SoapAttributes() Dim soapOverrides As SoapAttributeOverrides = _ New SoapAttributeOverrides() ' Create a SoapElementAttribute to override ' the Vehicles property. Dim soapElement1 As SoapElementAttribute = _ New SoapElementAttribute("Truck") ' Set the SoapElement to the object. soapAttrs.SoapElement= soapElement1 ' Add the SoapAttributes to the SoapAttributeOverrides, ' specifying the member to override. soapOverrides.Add(GetType(Transportation), "Vehicle", soapAttrs) ' Create the XmlSerializer, and return it. Dim myTypeMapping As XmlTypeMapping = (New _ SoapReflectionImporter (soapOverrides)).ImportTypeMapping _ (GetType(Transportation)) return New XmlSerializer(myTypeMapping) End Function Public Sub SerializeOverride(filename As String) ' Create an XmlSerializer instance. Dim ser As XmlSerializer = CreateSoapOverrider() ' Create the object and serialize it. Dim myTransportation As Transportation = _ New Transportation() myTransportation.Vehicle = "MyCar" myTransportation.CreationDate = DateTime.Now myTransportation.thing= new Thing() Dim writer As XmlTextWriter = _ New XmlTextWriter(filename, Encoding.UTF8) writer.Formatting = Formatting.Indented writer.WriteStartElement("wrapper") ser.Serialize(writer, myTransportation) writer.WriteEndElement() writer.Close() End Sub Public Sub SerializeObject(filename As String) ' Create an XmlSerializer instance. Dim ser As XmlSerializer = _ New XmlSerializer(GetType(Transportation)) Dim myTransportation As Transportation = _ New Transportation() myTransportation.Vehicle = "MyCar" myTransportation.CreationDate=DateTime.Now myTransportation.thing= new Thing() Dim writer As XmlTextWriter = _ new XmlTextWriter(filename, Encoding.UTF8) writer.Formatting = Formatting.Indented writer.WriteStartElement("wrapper") ser.Serialize(writer, myTransportation) writer.WriteEndElement() writer.Close() End Sub End Class [C#] using System; using System.IO; using System.Xml.Serialization; using System.Collections; using System.Xml; using System.Text; public class Transportation { // The SoapElementAttribute specifies that the // generated XML element name will be "Wheels" // instead of "Vehicle". [SoapElement("Wheels")] public string Vehicle; [SoapElement(DataType = "dateTime")] public DateTime CreationDate; [SoapElement(IsNullable = true)] public Thing thing; } public class Thing{ [SoapElement(IsNullable=true)] public string ThingName; } public class Test { public static void Main() { Test t = new Test(); t.SerializeObject("SoapElementOriginal.xml"); t.SerializeOverride("SoapElementOverride.xml"); Console.WriteLine("Finished writing two XML files."); } // Return an XmlSerializer used for overriding. public XmlSerializer CreateSoapOverrider() { // Create the SoapAttributes and SoapAttributeOverrides objects. SoapAttributes soapAttrs = new SoapAttributes(); SoapAttributeOverrides soapOverrides = new SoapAttributeOverrides(); /* Create an SoapElementAttribute to override the Vehicles property. */ SoapElementAttribute soapElement1 = new SoapElementAttribute("Truck"); // Set the SoapElement to the object. soapAttrs.SoapElement= soapElement1; /* Add the SoapAttributes to the SoapAttributeOverrides, specifying the member to override. */ soapOverrides.Add(typeof(Transportation), "Vehicle", soapAttrs); // Create the XmlSerializer, and return it. XmlTypeMapping myTypeMapping = (new SoapReflectionImporter (soapOverrides)).ImportTypeMapping(typeof(Transportation)); return new XmlSerializer(myTypeMapping); } public void SerializeOverride(string filename) { // Create an XmlSerializer instance. XmlSerializer ser = CreateSoapOverrider(); // Create the object and serialize it. Transportation myTransportation = new Transportation(); myTransportation.Vehicle = "MyCar"; myTransportation.CreationDate=DateTime.Now; myTransportation.thing = new Thing(); XmlTextWriter writer = new XmlTextWriter(filename, Encoding.UTF8); writer.Formatting = Formatting.Indented; writer.WriteStartElement("wrapper"); ser.Serialize(writer, myTransportation); writer.WriteEndElement(); writer.Close(); } public void SerializeObject(string filename){ // Create an XmlSerializer instance. XmlSerializer ser = new XmlSerializer(typeof(Transportation)); Transportation myTransportation = new Transportation(); myTransportation.Vehicle = "MyCar"; myTransportation.CreationDate = DateTime.Now; myTransportation.thing = new Thing(); XmlTextWriter writer = new XmlTextWriter(filename, Encoding.UTF8); writer.Formatting = Formatting.Indented; writer.WriteStartElement("wrapper"); ser.Serialize(writer, myTransportation); writer.WriteEndElement(); writer.Close(); } } [C++] #using <mscorlib.dll> #using <System.Xml.dll> using namespace System; using namespace System::IO; using namespace System::Xml::Serialization; using namespace System::Collections; using namespace System::Xml; using namespace System::Text; __gc public class Thing { public: [SoapElement(IsNullable=true)] String* ThingName; }; __gc public class Transportation { // The SoapElementAttribute specifies that the // generated XML element name will be S"Wheels" // instead of S"Vehicle". public: [SoapElement(S"Wheels")] String* Vehicle; [SoapElement(DataType = S"dateTime")] DateTime CreationDate; [SoapElement(IsNullable = true)] Thing * thing; }; __gc public class Test { // Return an XmlSerializer used for overriding. public: XmlSerializer * CreateSoapOverrider() { // Create the SoapAttributes and SoapAttributeOverrides objects. SoapAttributes* soapAttrs = new SoapAttributes(); SoapAttributeOverrides* soapOverrides = new SoapAttributeOverrides(); // Create an SoapElementAttribute to the Vehicles property. SoapElementAttribute* soapElement1 = new SoapElementAttribute(S"Truck"); // Set the SoapElement to the Object*. soapAttrs -> SoapElement= soapElement1; // Add the SoapAttributes to the SoapAttributeOverrides,specifying the member to. soapOverrides -> Add(__typeof(Transportation), S"Vehicle", soapAttrs); // Create the XmlSerializer, and return it. XmlTypeMapping * myTypeMapping = (new SoapReflectionImporter (soapOverrides)) -> ImportTypeMapping(__typeof(Transportation)); return new XmlSerializer(myTypeMapping); } void SerializeOverride(String* filename) { // Create an XmlSerializer instance. XmlSerializer * ser = CreateSoapOverrider(); // Create the Object* and serialize it. Transportation* myTransportation = new Transportation(); myTransportation -> Vehicle = S"MyCar"; myTransportation -> CreationDate=DateTime::Now; myTransportation -> thing = new Thing(); XmlTextWriter* writer = new XmlTextWriter(filename, Encoding::UTF8); writer -> Formatting = Formatting::Indented; writer -> WriteStartElement(S"wrapper"); ser -> Serialize(writer, myTransportation); writer -> WriteEndElement(); writer -> Close(); } void SerializeObject(String* filename) { // Create an XmlSerializer instance. XmlSerializer* ser = new XmlSerializer(__typeof(Transportation)); Transportation* myTransportation = new Transportation(); myTransportation -> Vehicle = S"MyCar"; myTransportation -> CreationDate = DateTime::Now; myTransportation -> thing = new Thing(); XmlTextWriter* writer = new XmlTextWriter(filename, Encoding::UTF8); writer -> Formatting = Formatting::Indented; writer -> WriteStartElement(S"wrapper"); ser -> Serialize(writer, myTransportation); writer -> WriteEndElement(); writer -> Close(); } }; int main() { Test* t = new Test(); t -> SerializeObject(S"SoapElementOriginal.xml"); t -> SerializeOverride(S"SoapElementOverride.xml"); Console::WriteLine(S"Finished writing two XML files."); }
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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
XmlTypeMapping Members | System.Xml.Serialization Namespace | Introducing XML Serialization | Generating SOAP Messages With XML Serialization | Attributes That Control Encoded SOAP Serialization | Examples of XML Serialization