HttpRequestHeader HttpRequestHeader HttpRequestHeader HttpRequestHeader Enum

Definition

The HTTP headers that may be specified in a client request.

public enum class HttpRequestHeader
public enum HttpRequestHeader
type HttpRequestHeader = 
Public Enum HttpRequestHeader
Inheritance
HttpRequestHeaderHttpRequestHeaderHttpRequestHeaderHttpRequestHeader

Fields

Accept Accept Accept Accept 20

The Accept header, which specifies the MIME types that are acceptable for the response.

AcceptCharset AcceptCharset AcceptCharset AcceptCharset 21

The Accept-Charset header, which specifies the character sets that are acceptable for the response.

AcceptEncoding AcceptEncoding AcceptEncoding AcceptEncoding 22

The Accept-Encoding header, which specifies the content encodings that are acceptable for the response.

AcceptLanguage AcceptLanguage AcceptLanguage AcceptLanguage 23

The Accept-Langauge header, which specifies that natural languages that are preferred for the response.

Allow Allow Allow Allow 10

The Allow header, which specifies the set of HTTP methods supported.

Authorization Authorization Authorization Authorization 24

The Authorization header, which specifies the credentials that the client presents in order to authenticate itself to the server.

CacheControl CacheControl CacheControl CacheControl 0

The Cache-Control header, which specifies directives that must be obeyed by all cache control mechanisms along the request/response chain.

Connection Connection Connection Connection 1

The Connection header, which specifies options that are desired for a particular connection.

ContentEncoding ContentEncoding ContentEncoding ContentEncoding 13

The Content-Encoding header, which specifies the encodings that have been applied to the accompanying body data.

ContentLanguage ContentLanguage ContentLanguage ContentLanguage 14

The Content-Langauge header, which specifies the natural language(s) of the accompanying body data.

ContentLength ContentLength ContentLength ContentLength 11

The Content-Length header, which specifies the length, in bytes, of the accompanying body data.

ContentLocation ContentLocation ContentLocation ContentLocation 15

The Content-Location header, which specifies a URI from which the accompanying body may be obtained.

ContentMd5 ContentMd5 ContentMd5 ContentMd5 16

The Content-MD5 header, which specifies the MD5 digest of the accompanying body data, for the purpose of providing an end-to-end message integrity check.

ContentRange ContentRange ContentRange ContentRange 17

The Content-Range header, which specifies where in the full body the accompanying partial body data should be applied.

ContentType ContentType ContentType ContentType 12

The Content-Type header, which specifies the MIME type of the accompanying body data.

25

The Cookie header, which specifies cookie data presented to the server.

Date Date Date Date 2

The Date header, which specifies the date and time at which the request originated.

Expect Expect Expect Expect 26

The Expect header, which specifies particular server behaviors that are required by the client.

Expires Expires Expires Expires 18

The Expires header, which specifies the date and time after which the accompanying body data should be considered stale.

From From From From 27

The From header, which specifies an Internet Email address for the human user who controls the requesting user agent.

Host Host Host Host 28

The Host header, which specifies the host name and port number of the resource being requested.

IfMatch IfMatch IfMatch IfMatch 29

The If-Match header, which specifies that the requested operation should be performed only if the client's cached copy of the indicated resource is current.

IfModifiedSince IfModifiedSince IfModifiedSince IfModifiedSince 30

The If-Modified-Since header, which specifies that the requested operation should be performed only if the requested resource has been modified since the indicated data and time.

IfNoneMatch IfNoneMatch IfNoneMatch IfNoneMatch 31

The If-None-Match header, which specifies that the requested operation should be performed only if none of client's cached copies of the indicated resources are current.

IfRange IfRange IfRange IfRange 32

The If-Range header, which specifies that only the specified range of the requested resource should be sent, if the client's cached copy is current.

IfUnmodifiedSince IfUnmodifiedSince IfUnmodifiedSince IfUnmodifiedSince 33

The If-Unmodified-Since header, which specifies that the requested operation should be performed only if the requested resource has not been modified since the indicated date and time.

KeepAlive KeepAlive KeepAlive KeepAlive 3

The Keep-Alive header, which specifies a parameter used into order to maintain a persistent connection.

LastModified LastModified LastModified LastModified 19

The Last-Modified header, which specifies the date and time at which the accompanying body data was last modified.

MaxForwards MaxForwards MaxForwards MaxForwards 34

The Max-Forwards header, which specifies an integer indicating the remaining number of times that this request may be forwarded.

Pragma Pragma Pragma Pragma 4

The Pragma header, which specifies implementation-specific directives that might apply to any agent along the request/response chain.

ProxyAuthorization ProxyAuthorization ProxyAuthorization ProxyAuthorization 35

The Proxy-Authorization header, which specifies the credentials that the client presents in order to authenticate itself to a proxy.

Range Range Range Range 37

The Range header, which specifies the sub-range(s) of the response that the client requests be returned in lieu of the entire response.

Referer Referer Referer Referer 36

The Referer header, which specifies the URI of the resource from which the request URI was obtained.

Te Te Te Te 38

The TE header, which specifies the transfer encodings that are acceptable for the response.

Trailer Trailer Trailer Trailer 5

The Trailer header, which specifies the header fields present in the trailer of a message encoded with chunked transfer-coding.

TransferEncoding TransferEncoding TransferEncoding TransferEncoding 6

The Transfer-Encoding header, which specifies what (if any) type of transformation that has been applied to the message body.

Translate Translate Translate Translate 39

The Translate header, a Microsoft extension to the HTTP specification used in conjunction with WebDAV functionality.

Upgrade Upgrade Upgrade Upgrade 7

The Upgrade header, which specifies additional communications protocols that the client supports.

UserAgent UserAgent UserAgent UserAgent 40

The User-Agent header, which specifies information about the client agent.

Via Via Via Via 8

The Via header, which specifies intermediate protocols to be used by gateway and proxy agents.

Warning Warning Warning Warning 9

The Warning header, which specifies additional information about that status or transformation of a message that might not be reflected in the message.

Remarks

The appropriate contents of various headers are described in detail in the HTTP/1.1 specification, available at rfc2616.

Applies to

See Also