HttpWebResponse Class (System.Net)

HttpWebResponse Class

Provides an HTTP-specific implementation of the WebResponse class.

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

SystemObject
SystemMarshalByRefObject
System.NetWebResponse
System.NetHttpWebResponse

Syntax

[SerializableAttribute]
public class HttpWebResponse : WebResponse, ISerializable

[SerializableAttribute]
public ref class HttpWebResponse : WebResponse, ISerializable

[<SerializableAttribute>]
type HttpWebResponse = 
    class
        inherit WebResponse
        interface ISerializable
    end

<SerializableAttribute>
Public Class HttpWebResponse
	Inherits WebResponse
	Implements ISerializable

Constructors

	Name	Description
	HttpWebResponse	Obsolete. Initializes a new instance of the HttpWebResponse class.
	HttpWebResponse	Obsolete. Initializes a new instance of the HttpWebResponse class from the specified SerializationInfo and StreamingContext instances.

Properties

	Name	Description
		Gets the character set of the response.
		Gets the method that is used to encode the body of the response.
		Gets the length of the content returned by the request.(Overrides .)
		Gets the content type of the response.(Overrides .)
		Gets or sets the cookies that are associated with this response.
		Gets the headers that are associated with this response from the server.(Overrides .)
		Gets a Boolean value that indicates whether this response was obtained from the cache.(Inherited from WebResponse.)
		Gets a Boolean value that indicates whether both client and server were authenticated.(Overrides .)
		Gets the last date and time that the contents of the response were modified.
		Gets the method that is used to return the response.
		Gets the version of the HTTP protocol that is used in the response.
		Gets the URI of the Internet resource that responded to the request.(Overrides .)
		Gets the name of the server that sent the response.
		Gets the status of the response.
		Gets the status description returned with the response.
		Gets a value that indicates if headers are supported.(Overrides .)

Methods

	Name	Description
	Close	Closes the response stream.(Overrides WebResponseClose.)
	CreateObjRef	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.(Inherited from MarshalByRefObject.)
	Dispose	Releases the unmanaged resources used by the WebResponse object.(Inherited from WebResponse.)
	Dispose	Releases the unmanaged resources used by the HttpWebResponse, and optionally disposes of the managed resources.(Overrides WebResponseDispose.)
	Equals	Determines whether the specified object is equal to the current object.(Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetLifetimeService	Retrieves the current lifetime service object that controls the lifetime policy for this instance.(Inherited from MarshalByRefObject.)
	GetObjectData	This API supports the product infrastructure and is not intended to be used directly from your code. Populates a SerializationInfo with the data needed to serialize the target object.(Overrides WebResponseGetObjectData.)
	GetResponseHeader	Gets the contents of a header that was returned with the response.
	GetResponseStream	Gets the stream that is used to read the body of the response from the server.(Overrides WebResponseGetResponseStream.)
	GetType	Gets the Type of the current instance.(Inherited from Object.)
	InitializeLifetimeService	Obtains a lifetime service object to control the lifetime policy for this instance.(Inherited from MarshalByRefObject.)
	MemberwiseClone	Creates a shallow copy of the current Object.(Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current MarshalByRefObject object.(Inherited from MarshalByRefObject.)
	ToString	Returns a string that represents the current object.(Inherited from Object.)

Explicit Interface Implementations

	Name	Description
	ISerializableGetObjectData	This API supports the product infrastructure and is not intended to be used directly from your code. Serializes this instance into the specified SerializationInfo object.

Remarks

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.

Note
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 HttpWebRequestGetResponse. You must call either the StreamClose or the HttpWebResponseClose method to close the response and release the connection for reuse. It is not necessary to call both StreamClose and HttpWebResponseClose, 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 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
Content-Length
Content-Type
Last-Modified
Server

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

Examples

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();

Dim HttpWReq As HttpWebRequest = _
   CType(WebRequest.Create("http://www.contoso.com"), HttpWebRequest)

Dim HttpWResp As HttpWebResponse = _
   CType(HttpWReq.GetResponse(), HttpWebResponse)
' Insert code that uses the response object.
HttpWResp.Close()

HttpWebRequest^ HttpWReq = dynamic_cast<HttpWebRequest^>(WebRequest::Create( "http://www.contoso.com" ));
HttpWebResponse^ HttpWResp = dynamic_cast<HttpWebResponse^>(HttpWReq->GetResponse());

// Insert code that uses the response object.
HttpWResp->Close();

Version Information

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1

Thread Safety

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