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XmlSchemaImporter Class

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Generates internal mappings to .NET Framework types for XML schema element declarations, including literal XSD message parts in a WSDL document.

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

public class XmlSchemaImporter : SchemaImporter

The XmlSchemaImporter class is used by the Web Services Description Language Tool (Wsdl.exe) and the ServiceDescriptionImporter class while generating client proxy classes or abstract server classes from a Web Services Description Language (WSDL) document. The class is also used by the Web Services Description Language Tool (Wsdl.exe) while generating classes from XML Schema Definition (XSD) documents. Instead of using this class directly, use Wsdl.exe or Xsd.exe.

The XmlSchemaImporter class has methods to generate internal mappings to .NET Framework types for elements defined in an XSD document or as parts in a WSDL document. The following list shows when the class is used by Wsdl.exe:

  • A WSDL document specifies literal use, where the content of SOAP message parameters and return values (or request and response documents) is literally specified with XML schema definitions.

  • A WSDL document specifies the .NET Framework's non-SOAP implementations of Web services via the HTTP-GET and HTTP-POST operations.


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, 1.1, 1.0