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XmlSerializerAssemblyAttribute Class

Applied to a Web service client proxy, enables you to specify an assembly that contains custom-made serializers.

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

[AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Interface, AllowMultiple = false)]
public sealed class XmlSerializerAssemblyAttribute : Attribute

Use the XmlSerializerAssemblyAttribute to increase the performance of a Web service client application.

A typical method of using this attribute is as follows:

  1. Create a client proxy for a Web service.

  2. Open the machine.config file.

  3. Under the system.diagnostics element, add a value under the <switches> element to keep the compiled files:

          <add name="XmlSerialization.Compilation" value="4"/>
  4. Compile the proxy.

  5. Run the proxy application.

  6. Open a command window and navigate to the \Temp directory used by the XmlSerializer to cache files.

    cd %temp%
  7. Find the last file created using the dir command with the /OD switch.

    dir *.vb /OD 
  8. Compile the file into an assembly. Name the assembly.

  9. Edit the original proxy code by applying the XmlSerializerAssemblyAttribute to the class. Specify the assembly name, as shown in the following C# code.

    public class Hello: System.Web.Services.Protocols.SoapHttpClientProtocol {
       // Proxy code not shown.
<XmlSerializerAssemblyAttribute(AssemblyName:="hello.serializer")> _
Public Class Hello
Implements System.Web.Services.Protocols.SoapHttpClientProtocol 
   ' Proxy code not shown.
End Class


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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0