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XmlFormatExtensionPrefixAttribute Class

Specifies the XML namespace and XML namespace prefix to use for a service description format extension within a service description. This class cannot be inherited.

System.Object
  System.Attribute
    System.Web.Services.Configuration.XmlFormatExtensionPrefixAttribute

Namespace:  System.Web.Services.Configuration
Assembly:  System.Web.Services (in System.Web.Services.dll)

[<Sealed>]
[<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true)>]
type XmlFormatExtensionPrefixAttribute =  
    class
        inherit Attribute
    end

The XmlFormatExtensionPrefixAttribute type exposes the following members.

  NameDescription
Public methodXmlFormatExtensionPrefixAttribute()Initializes a new instance of the XmlFormatExtensionPrefixAttribute class.
Public methodXmlFormatExtensionPrefixAttribute(String, String)Initializes a new instance of the XmlFormatExtensionPrefixAttribute class, setting the XML namespace and XML namespace prefix for a service description format extension.
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  NameDescription
Public propertyNamespaceGets or sets the XML namespace associated with a service description format extension.
Public propertyPrefixGets or sets the XML namespace prefix associated with a service description format extension.
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
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  NameDescription
Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate method_Attribute.GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
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A service description format extension extends how a service description is generated for an XML Web service created using ASP.NET. Specifically, a service description format extension adds XML elements to the service description. This is useful when a SOAP extension is built to run on both the client and server side of an XML Web service, as information about SOAP extensions is not placed in the service description. If you add information about the SOAP extension to the service description, a client can interpret that it must run the specific SOAP extension. An example of a SOAP extension that must run on both the client and server is an encryption SOAP extension. If an encryption SOAP extension runs on only the server, and it encrypts return values before sending them back to the client, the client must have the SOAP extension running to decrypt the SOAP message. Otherwise, the client cannot process the return value.

Use the following steps to build a service description format extension:

  1. Build a class that derives from ServiceDescriptionFormatExtension.

  2. Apply an XmlFormatExtensionAttribute to the class and specify the extension points at which the service description format extension should run.

  3. Optionally, apply an XmlFormatExtensionPointAttribute to the class and specify a member within the class that acts as a new extension point.

  4. Optionally, apply an XmlFormatExtensionPrefixAttribute to the class and specify the XML namespace prefix to be associated with XML elements generated by the service description format extension.

  5. Configure the service description format extension to run within the serviceDescriptionFormatExtensionTypes section of the configuration file.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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

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