HttpResponseHeader Enumeration
The HTTP headers that can be specified in a server response.
Assembly: System (in System.dll)
| Member name | Description | |
|---|---|---|
| AcceptRanges | The Accept-Ranges header, which specifies the range that is accepted by the server. | |
| Age | The Age header, which specifies the time, in seconds, since the response was generated by the originating server. | |
| Allow | The Allow header, which specifies the set of HTTP methods that are supported. | |
| CacheControl | The Cache-Control header, which specifies caching directives that must be obeyed by all caching mechanisms along the request/response chain. | |
| Connection | The Connection header, which specifies options that are desired for a particular connection. | |
| ContentEncoding | The Content-Encoding header, which specifies the encodings that have been applied to the accompanying body data. | |
| ContentLanguage | The Content-Langauge header, which specifies the natural language or languages of the accompanying body data. | |
| ContentLength | The Content-Length header, which specifies the length, in bytes, of the accompanying body data. | |
| ContentLocation | The Content-Location header, which specifies a URI from which the accompanying body can be obtained. | |
| ContentMd5 | 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 | The Range header, which specifies the subrange or subranges of the response that the client requests be returned in lieu of the entire response. | |
| ContentType | The Content-Type header, which specifies the MIME type of the accompanying body data. | |
| Date | The Date header, which specifies the date and time at which the response originated. | |
| ETag | The Etag header, which specifies the current value for the requested variant. | |
| Expires | The Expires header, which specifies the date and time after which the accompanying body data should be considered stale. | |
| KeepAlive | The Keep-Alive header, which specifies a parameter to be used to maintain a persistent connection. | |
| LastModified | The Last-Modified header, which specifies the date and time at which the accompanying body data was last modified. | |
| Location | The Location header, which specifies a URI to which the client is redirected to obtain the requested resource. | |
| Pragma | The Pragma header, which specifies implementation-specific directives that might apply to any agent along the request/response chain. | |
| ProxyAuthenticate | The Proxy-Authenticate header, which specifies that the client must authenticate itself to a proxy. | |
| RetryAfter | The Retry-After header, which specifies a time (in seconds), or a date and time, after which the client can retry its request. | |
| Server | The Server header, which specifies information about the originating server agent. | |
| SetCookie | The Set-Cookie header, which specifies cookie data that is presented to the client. | |
| Trailer | The Trailer header, which specifies that the indicated header fields are present in the trailer of a message that is encoded with chunked transfer-coding. | |
| TransferEncoding | The Transfer-Encoding header, which specifies what (if any) type of transformation has been applied to the message body. | |
| Upgrade | The Upgrade header, which specifies additional communications protocols that the client supports. | |
| Vary | The Vary header, which specifies the request headers that are used to determine whether a cached response is fresh. | |
| Via | The Via header, which specifies intermediate protocols to be used by gateway and proxy agents. | |
| Warning | The Warning header, which specifies additional information about that status or transformation of a message that might not be reflected in the message. | |
| WwwAuthenticate | The WWW-Authenticate header, which specifies that the client must authenticate itself to the server. |
The appropriate contents of various headers are described in detail in the HTTP/1.1 specification.
Available since 10
.NET Framework
Available since 2.0