SoapTypeAttribute Class

Controls the schema generated by the XmlSerializer when a class instance is serialized as SOAP encoded XML.

Namespace: System.Xml.Serialization
Assembly: System.Xml (in system.xml.dll)

'Declaration
<AttributeUsageAttribute(AttributeTargets.Class Or AttributeTargets.Struct Or AttributeTargets.Enum Or AttributeTargets.Interface)> _
Public Class SoapTypeAttribute
	Inherits Attribute
'Usage
Dim instance As SoapTypeAttribute

/** @attribute AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Interface) */ 
public class SoapTypeAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Interface) 
public class SoapTypeAttribute extends Attribute
Not applicable.

The SoapTypeAttribute class belongs to a family of attributes that controls how the XmlSerializer serializes or deserializes 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". For a complete list of similar attributes, see Attributes That Control Encoded SOAP Serialization.

To serialize an object as an encoded SOAP message, construct the XmlSerializer using an XmlTypeMapping created with the ImportTypeMapping method of the SoapReflectionImporter class.

The SoapTypeAttribute can only be applied to class declarations.

The IncludeInSchema property determines whether the resulting XML element type is included in the XML Schema document (.xsd) for the generated XML stream. To see the schema, compile the class into a DLL file. Pass the resulting file as an argument to the XML Schema Definition Tool (Xsd.exe). The tool generates the XML Schema for the XML stream generated when the class is serialized by an instance of the XmlSerializer class.

Setting a different namespace causes Xsd.exe to write a different schema (.xsd) file for the XML stream generated when the class is serialized.

The following example serializes a class named Group. The SoapTypeAttribute is applied to the class, with the TypeName set to "SoapGroupType". The SoapTypeAttribute is also overridden, changing the TypeName to "Team". Both versions are serialized, resulting in two files: SoapType.xml and SoapType2.xml.

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

' The SoapType is overridden when the
' SerializeOverride  method is called.
<SoapType("SoapGroupType", "http://www.cohowinery.com")> _
Public class Group
   Public GroupName As String
   Public Employees() As Employee
End Class

<SoapType("EmployeeType")> _
Public Class Employee
   Public Name As String
End Class
   
Public class Run
   Public Shared Sub Main()
      Dim test As Run = New Run()
      test.SerializeOriginal("SoapType.xml")
      test.SerializeOverride("SoapType2.xml")
      test.DeserializeObject("SoapType2.xml")
   End Sub

   Public Sub SerializeOriginal(filename As String )
      ' Create an instance of the XmlSerializer class that
      ' can be used for serializing as a SOAP message.
     Dim mapp  As XmlTypeMapping = _
      (New SoapReflectionImporter()).ImportTypeMapping(GetType(Group))
      Dim mySerializer As XmlSerializer =  _
      New XmlSerializer(mapp)
      
      ' Writing the file requires a TextWriter.
      Dim writer As TextWriter = New StreamWriter(filename)

      ' Create an XML text writer.
      Dim xmlWriter As XmlTextWriter = New XmlTextWriter(writer)
      xmlWriter.Formatting = Formatting.Indented
      xmlWriter.Indentation = 2

      ' Create an instance of the class that will be serialized.
      Dim myGroup As Group = New Group()

      ' Set the object properties.
      myGroup.GroupName = ".NET"
      Dim e1 As Employee = New Employee()
      e1.Name = "Pat"
      myGroup.Employees=New Employee(){e1}

      ' Write the root element.
      xmlWriter.WriteStartElement("root")

      ' Serialize the class.
      mySerializer.Serialize(xmlWriter, myGroup)

      ' Close the root tag.
      xmlWriter.WriteEndElement()

      ' Close the XmlWriter.
      xmlWriter.Close()

      ' Close the TextWriter.
      writer.Close()
   End Sub

   Public Sub SerializeOverride(filename As string )
   
      ' Create an instance of the XmlSerializer class that
      ' uses a SoapAttributeOverrides object.
      Dim mySerializer As XmlSerializer =  CreateOverrideSerializer()

      ' Writing the file requires a TextWriter.
      Dim writer As TextWriter = New StreamWriter(filename)

      ' Create an XML text writer.
      Dim xmlWriter As XmlTextWriter = New XmlTextWriter(writer)
      xmlWriter.Formatting = Formatting.Indented
      xmlWriter.Indentation = 2

      ' Create an instance of the class that will be serialized.
      Dim myGroup As Group = New Group()

      ' Set the object properties.
      myGroup.GroupName = ".NET"
      Dim e1 As Employee = New Employee()
      e1.Name = "Pat"
      myGroup.Employees = New Employee(){e1}

      ' Write the root element.
      xmlWriter.WriteStartElement("root")

      ' Serialize the class.
      mySerializer.Serialize(xmlWriter, myGroup)

      ' Close the root tag.
      xmlWriter.WriteEndElement()

      ' Close the XmlWriter.
      xmlWriter.Close()

      ' Close the TextWriter.
      writer.Close()
   End Sub

   Private Function CreateOverrideSerializer() As XmlSerializer 
      ' Create and return an XmlSerializer instance used to
      ' override and create SOAP messages.
      Dim mySoapAttributeOverrides As SoapAttributeOverrides = _
      	New SoapAttributeOverrides()
      Dim soapAtts As SoapAttributes = New SoapAttributes()

      ' Override the SoapTypeAttribute.
      Dim soapType As SoapTypeAttribute = New SoapTypeAttribute()
      soapType.TypeName = "Team"
      soapType.IncludeInSchema = false
      soapType.Namespace = "http://www.microsoft.com"
      soapAtts.SoapType = soapType
      
      mySoapAttributeOverrides.Add(GetType(Group),soapAtts)

      ' Create an XmlTypeMapping that is used to create an instance 
      ' of the XmlSerializer. Then return the XmlSerializer object.
      Dim myMapping As XmlTypeMapping = (New SoapReflectionImporter( _
      mySoapAttributeOverrides)).ImportTypeMapping(GetType(Group))
	
      Dim  ser As XmlSerializer = New XmlSerializer(myMapping)
      
      return ser
   End Function

   Public Sub DeserializeObject(filename As String)
      ' Create an instance of the XmlSerializer class.
      Dim mySerializer As XmlSerializer =  CreateOverrideSerializer()

      ' Reading the file requires a TextReader.
      Dim reader As TextReader = New StreamReader(filename)

      ' Create an XML text reader.
      Dim xmlReader As XmlTextReader = New XmlTextReader(reader)
      xmlReader.ReadStartElement()

      ' Deserialize and cast the object.
      Dim myGroup As Group = CType(mySerializer.Deserialize(xmlReader), Group)
      xmlReader.ReadEndElement()
      Console.WriteLine("The GroupName is " + myGroup.GroupName)
      Console.WriteLine("Look at the SoapType.xml and SoapType2.xml " + _
        "files for the generated XML.")

      ' Close the readers.
      xmlReader.Close()
      reader.Close()
   End Sub
End Class

import System.*;
import System.IO.*;
import System.Xml.*;
import System.Xml.Serialization.*;

// The SoapType is overridden when the
// SerializeOverride  method is called.

/** @attribute SoapType("SoapGroupType", "http://www.cohowinery.com")
 */
public class Group
{
    public String groupName;
    public Employee employees[];
} //Group

/** @attribute SoapType("EmployeeType")
 */
public class Employee
{
    public String name;
} //Employee

public class Run
{
    public static void main(String[] args)
    {
        Run test = new Run();
        test.SerializeOriginal("SoapType.xml");
        test.SerializeOverride("SoapType2.xml");
        test.DeserializeObject("SoapType2.xml");
    } //main

    public void SerializeOriginal(String fileName)
    {
        // Create an instance of the XmlSerializer class that
        // can be used for serializing as a SOAP message.
        XmlTypeMapping mapp = (new SoapReflectionImporter()).
            ImportTypeMapping(Group.class.ToType());
        XmlSerializer mySerializer = new XmlSerializer(mapp);
        // Writing the file requires a TextWriter.
        TextWriter writer = new StreamWriter(fileName);
        // Create an instance of the class that will be serialized.
        Group myGroup = new Group();
        // Set the object properties.
        myGroup.groupName = ".NET";
        Employee e1 = new Employee();
        e1.name = "Pat";
        myGroup.employees = new Employee[] { e1 };
        // Serialize the class, and close the TextWriter.
        mySerializer.Serialize(writer, myGroup);
        writer.Close();
    } //SerializeOriginal

    public void SerializeOverride(String fileName)
    {
        // Create an instance of the XmlSerializer class that
        // uses a SoapAttributeOverrides object.
        XmlSerializer mySerializer = CreateOverrideSerializer();
        // Writing the file requires a TextWriter.
        TextWriter writer = new StreamWriter(fileName);
        // Create an instance of the class that will be serialized.
        Group myGroup = new Group();
        // Set the object properties.
        myGroup.groupName = ".NET";
        Employee e1 = new Employee();
        e1.name = "Pat";
        myGroup.employees = new Employee[] { e1 };
        // Serialize the class, and close the TextWriter.
        mySerializer.Serialize(writer, myGroup);
        writer.Close();
    } //SerializeOverride

    private XmlSerializer CreateOverrideSerializer()
    {
        // Create and return an XmlSerializer instance used to
        // override and create SOAP messages.
        SoapAttributeOverrides mySoapAttributeOverrides =
            new SoapAttributeOverrides();
        SoapAttributes soapAtts = new SoapAttributes();
        // Override the SoapTypeAttribute.
        SoapTypeAttribute soapType = new SoapTypeAttribute();
        soapType.set_TypeName("Team");
        soapType.set_IncludeInSchema(false);
        soapType.set_Namespace("http://www.microsoft.com");
        soapAtts.set_SoapType(soapType);

        mySoapAttributeOverrides.Add(Group.class.ToType(), soapAtts);
        // Create an XmlTypeMapping that is used to create an instance 
        // of the XmlSerializer. Then return the XmlSerializer object.
        XmlTypeMapping myMapping =
            (new SoapReflectionImporter(mySoapAttributeOverrides)).
            ImportTypeMapping(Group.class.ToType());

        XmlSerializer ser = new XmlSerializer(myMapping);
        return ser;
    } //CreateOverrideSerializer

    public void DeserializeObject(String fileName)
    {
        // Create an instance of the XmlSerializer class.
        XmlSerializer mySerializer = CreateOverrideSerializer();
        // Reading the file requires a TextReader.
        TextReader reader = new StreamReader(fileName);
        // Deserialize and cast the object.
        Group myGroup;
        myGroup = (Group)mySerializer.Deserialize(reader);

        Console.WriteLine(myGroup.groupName);
    } //DeserializeObject
} //Run

System.Object
   System.Attribute
    System.Xml.Serialization.SoapTypeAttribute

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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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