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HttpWebResponse Class

Provides an HTTP-specific implementation of the WebResponse class.

Namespace:  System.Net
Assembly:  System (in System.dll)

[SerializableAttribute]
public class HttpWebResponse : WebResponse, 
	ISerializable

The HttpWebResponse type exposes the following members.

  NameDescription
Public methodHttpWebResponse() Obsolete. Initializes a new instance of the HttpWebResponse class.
Protected methodHttpWebResponse(SerializationInfo, StreamingContext) Obsolete. Initializes a new instance of the HttpWebResponse class from the specified SerializationInfo and StreamingContext instances.
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  NameDescription
Public propertyCharacterSetGets the character set of the response.
Public propertyContentEncodingGets the method that is used to encode the body of the response.
Public propertySupported in .NET for Windows Store appsContentLengthGets the length of the content returned by the request. (Overrides WebResponse.ContentLength.)
Public propertySupported in .NET for Windows Store appsContentTypeGets the content type of the response. (Overrides WebResponse.ContentType.)
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsCookiesGets or sets the cookies that are associated with this response.
Public propertySupported in .NET for Windows Store appsHeadersGets the headers that are associated with this response from the server. (Overrides WebResponse.Headers.)
Public propertyIsFromCacheGets a Boolean value that indicates whether this response was obtained from the cache. (Inherited from WebResponse.)
Public propertyIsMutuallyAuthenticatedGets a Boolean value that indicates whether both client and server were authenticated. (Overrides WebResponse.IsMutuallyAuthenticated.)
Public propertyLastModifiedGets the last date and time that the contents of the response were modified.
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsMethodGets the method that is used to return the response.
Public propertyProtocolVersionGets the version of the HTTP protocol that is used in the response.
Public propertySupported in .NET for Windows Store appsResponseUriGets the URI of the Internet resource that responded to the request. (Overrides WebResponse.ResponseUri.)
Public propertyServerGets the name of the server that sent the response.
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsStatusCodeGets the status of the response.
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsStatusDescriptionGets the status description returned with the response.
Public propertySupported in .NET for Windows Store appsSupportsHeadersGets a value that indicates if headers are supported. (Overrides WebResponse.SupportsHeaders.)
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  NameDescription
Public methodCloseCloses the response stream. (Overrides WebResponse.Close().)
Public methodCreateObjRefCreates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.)
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsDispose()Releases the unmanaged resources used by the WebResponse object. (Inherited from WebResponse.)
Protected methodSupported in .NET for Windows Store appsDispose(Boolean)Releases the unmanaged resources used by the HttpWebResponse, and optionally disposes of the managed resources. (Overrides WebResponse.Dispose(Boolean).)
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetLifetimeServiceRetrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected methodGetObjectDataInfrastructure. Populates a SerializationInfo with the data needed to serialize the target object. (Overrides WebResponse.GetObjectData(SerializationInfo, StreamingContext).)
Public methodGetResponseHeaderGets the contents of a header that was returned with the response.
Public methodSupported in .NET for Windows Store appsGetResponseStreamGets the stream that is used to read the body of the response from the server. (Overrides WebResponse.GetResponseStream().)
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodInitializeLifetimeServiceObtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsMemberwiseClone()Creates a shallow copy of the current Object. (Inherited from Object.)
Protected methodMemberwiseClone(Boolean)Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.)
Public methodSupported by Portable Class LibrarySupported in .NET for Windows Store appsToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate methodIDisposable.Dispose()Infrastructure. When overridden in a derived class, releases all resources used by the WebResponse. (Inherited from WebResponse.)
Explicit interface implemetationPrivate methodIDisposable.Dispose()Infrastructure. Releases all resources used by the HttpWebResponse.
Explicit interface implemetationPrivate methodISerializable.GetObjectDataInfrastructure. Serializes this instance into the specified SerializationInfo object.
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This class contains support for HTTP-specific uses of the properties and methods of the WebResponse class. The HttpWebResponse class is used to build HTTP stand-alone client applications that send HTTP requests and receive HTTP responses.

NoteNote

Do not confuse HttpWebResponse with the HttpResponse class that is used in ASP.NET applications and whose methods and properties are exposed through ASP.NET's intrinsic Response object.

You should never directly create an instance of the HttpWebResponse class. Instead, use the instance returned by a call to HttpWebRequest.GetResponse. You must call either the Stream.Close or the HttpWebResponse.Close method to close the response and release the connection for reuse. It is not necessary to call both Stream.Close and HttpWebResponse.Close, but doing so does not cause an error.

Common header information returned from the Internet resource is exposed as properties of the class. See the following table for a complete list. Other headers can be read from the Headers property as name/value pairs.

The following table shows the common HTTP headers that are available through properties of the HttpWebResponse class.

Header

Property

Content-Encoding

ContentEncoding

Content-Length

ContentLength

Content-Type

ContentType

Last-Modified

LastModified

Server

Server

The contents of the response from the Internet resource are returned as a Stream by calling the GetResponseStream method.

The following example returns an HttpWebResponse from an HttpWebRequest.

HttpWebRequest HttpWReq = 
(HttpWebRequest)WebRequest.Create("http://www.contoso.com");

HttpWebResponse HttpWResp = (HttpWebResponse)HttpWReq.GetResponse();
// Insert code that uses the response object.
HttpWResp.Close();

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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