HttpRequestHeader Enumeration
Silverlight
The HTTP headers that may be specified in a client request.
Namespace: System.Net
Assembly: System.Net (in System.Net.dll)
| Member name | Description | |
|---|---|---|
![]() | CacheControl | The Cache-Control header, which specifies directives that must be obeyed by all cache control mechanisms along the request/response chain. |
![]() | Connection | The Connection header, which specifies options that are desired for a particular connection. |
![]() | Date | The Date header, which specifies the date and time at which the request originated. |
![]() | KeepAlive | The Keep-Alive header, which specifies a parameter used into order to maintain a persistent connection. |
![]() | Pragma | The Pragma header, which specifies implementation-specific directives that might apply to any agent along the request/response chain. |
![]() | Trailer | The Trailer header, which specifies the header fields present in the trailer of a message encoded with chunked transfer-coding. |
![]() | TransferEncoding | The Transfer-Encoding header, which specifies what (if any) type of transformation that has been applied to the message body. |
![]() | Upgrade | The Upgrade header, which specifies additional communications protocols that the client supports. |
![]() | 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. |
![]() | Allow | The Allow header, which specifies the set of HTTP methods supported. |
![]() | ContentLength | The Content-Length header, which specifies the length, in bytes, of the accompanying body data. |
![]() | ContentType | The Content-Type header, which specifies the MIME type of the accompanying body data. |
![]() | 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(s) of the accompanying body data. |
![]() | ContentLocation | The Content-Location header, which specifies a URI from which the accompanying body may 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 Content-Range header, which specifies where in the full body the accompanying partial body data should be applied. |
![]() | Expires | The Expires header, which specifies the date and time after which the accompanying body data should be considered stale. |
![]() | LastModified | The Last-Modified header, which specifies the date and time at which the accompanying body data was last modified. |
![]() | Accept | The Accept header, which specifies the MIME types that are acceptable for the response. |
![]() | AcceptCharset | The Accept-Charset header, which specifies the character sets that are acceptable for the response. |
![]() | AcceptEncoding | The Accept-Encoding header, which specifies the content encodings that are acceptable for the response. |
![]() | AcceptLanguage | The Accept-Langauge header, which specifies that natural languages that are preferred for the response. |
![]() | Authorization | The Authorization header, which specifies the credentials that the client presents in order to authenticate itself to the server. |
![]() | Cookie | The Cookie header, which specifies cookie data presented to the server. |
![]() | Expect | The Expect header, which specifies particular server behaviors that are required by the client. |
![]() | From | The From header, which specifies an Internet E-mail address for the human user who controls the requesting user agent. |
![]() | Host | The Host header, which specifies the host name and port number of the resource being requested. |
![]() | IfMatch | 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 | 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 | 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 | 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 | 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. |
![]() | MaxForwards | The Max-Forwards header, which specifies an integer indicating the remaining number of times that this request may be forwarded. |
![]() | ProxyAuthorization | The Proxy-Authorization header, which specifies the credentials that the client presents in order to authenticate itself to a proxy. |
![]() | Referer | The Referer header, which specifies the URI of the resource from which the request URI was obtained. |
![]() | Range | The Range header, which specifies the the sub-range(s) of the response that the client requests be returned in lieu of the entire response. |
![]() | Te | The TE header, which specifies the transfer encodings that are acceptable for the response. |
![]() | Translate | The Translate header, a Microsoft extension to the HTTP specification used in conjunction with WebDAV functionality. |
![]() | UserAgent | The User-Agent header, which specifies information about the client agent. |
The appropriate contents of various headers are described in detail in the HTTP 1.1 specification, available at http://www.w3.org/Protocols/rfc2616/rfc2616.html.
Information on restricted headers are discussed in detail in the documentation for the WebHeaderCollection class
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
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