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UrlEncodedParameterWriter Class

Provides URL encoding functionality for writers of out-going request parameters for Web service clients implemented using HTTP but without SOAP.

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

public abstract class UrlEncodedParameterWriter : MimeParameterWriter

The UrlEncodedParameterWriter type exposes the following members.

Protected methodUrlEncodedParameterWriterInitializes a new instance of the UrlEncodedParameterWriter class.

Public propertyRequestEncodingGets or sets the encoding used to write parameters to the HTTP request. (Overrides MimeParameterWriter.RequestEncoding.)
Public propertyUsesWriteRequestGets a value that indicates whether Web method parameter values are serialized to the out-going HTTP request body. (Inherited from MimeParameterWriter.)

Protected methodEncode(TextWriter, Object[])Encodes all the parameter values for a Web method and writes them to the specified writer.
Protected methodEncode(TextWriter, String, Object)Encodes a specified parameter value and writes it to the specified writer.
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
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 methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetInitializerReturns an initializer for the specified method. (Overrides MimeFormatter.GetInitializer(LogicalMethodInfo).)
Public methodGetInitializers(LogicalMethodInfo[])When overridden in a derived class, returns an array of initializer objects corresponding to an input array of method definitions. (Inherited from MimeFormatter.)
Public methodGetRequestUrlWhen overridden in a derived class, modifies the outgoing HTTP request's Uniform Request Locator (URL). (Inherited from MimeParameterWriter.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodInitializeInitializes an instance. (Overrides MimeFormatter.Initialize(Object).)
Public methodInitializeRequestWhen overridden in a derived class, initializes the out-going HTTP request. (Inherited from MimeParameterWriter.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodWriteRequestWhen overridden in a derived class, serializes Web method parameter values into a stream representing the outgoing HTTP request body. (Inherited from MimeParameterWriter.)

UrlEncodedParameterWriter and other classes in the System.Web.Services.Protocols namespace support the .NET Framework's implementations of Web services via the HTTP-GET and HTTP-POST operations. Web service writers and readers serialize and deserialize, respectively, between the parameters or return objects of Web methods and the HTTP request or response streams. Web service writers and readers use HTTP for transport but don't exchange messages using the SOAP standard.

The abstract UrlEncodedParameterWriter class inherits from the abstract MimeParameterWriter class, adding URL encoding functionality for client-side writing of Web method parameters into HTTP request streams.

You typically will not need to use UrlEncodedParameterWriter or its descendant classes directly. Instead, when the Wsdl.exe tool generates client proxy code according to the HTTP-GET or HTTP-POST implementations, it applies the HttpMethodAttribute to each Web method and sets the attribute's ParameterFormatter property to the appropriate type.


The Hypertext Transfer Protocol--HTTP/1.1 specifies the use of a variation on Multipurpose Internet Mail Extensions (MIME) message format, which itself allows e-mail messages to specify different content types, both text and binary.

.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.