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.NET Framework Class Library (FCL)
Class Reference
System.Net
FCL 1.0 (RTM)
Only those that are new in FCL 1.1 / nur neue Klassen in FCL 1.1
FCL 1.1 (RTM)
Only those that are new in FCL 2.0 / nur neue Klassen in FCL 2.0
FCL 2.0 (RTM)
Only those that are new in FCL 3.0 / nur neue Klassen in FCL 3.0
FCL 3.0 (RTM)
Only those that are new in FCL 3.5 / nur neue Klassen in FCL 3.5
FCL 3.5 (RTM)
Only those that are new in FCL 4.0 / nur neue Klassen in FCL 4.0
FCL 4.0 (RTM)
Only those that are new in FCL 4.5 / nur neue Klassen in FCL 4.5
FCL 4.5 (RTM)
Only those that are new in FCL 4.6 / nur neue Klassen in FCL 4.6
FCL 4.6 (RTM)
All Classes
.NET-Namespaces / .NET-Namensräume
Class Name
.NET
1.0
RTM
.NET
1.1
RTM
.NET
2.0
RTM
.NET
3.0
RTM
.NET
3.5
RTM
.NET
4.0
RTM
.NET
4.5
RTM
.NET
4.6
RTM
AuthenticationManager
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
AuthenticationSchemes
-
-
Yes
Yes
Yes
Yes
Yes
Yes
AuthenticationSchemeSelector
-
-
Yes
Yes
Yes
Yes
Yes
Yes
Authenticator
-
-
-
-
-
-
-
-
Authorization
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
BindIPEndPoint
-
-
Yes
Yes
Yes
Yes
Yes
Yes
CertificateSelectionCallback
-
-
-
-
-
-
-
-
CertificateValidationCallback
-
-
-
-
-
-
-
-
Cookie
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CookieCollection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CookieContainer
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CookieException
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CredentialCache
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DecompressionMethods
-
-
Yes
Yes
Yes
Yes
Yes
Yes
Dns
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DnsEndPoint
-
-
-
-
-
Yes
Yes
Yes
DnsPermission
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DnsPermissionAttribute
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DownloadDataCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
DownloadDataCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
DownloadProgressChangedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
DownloadProgressChangedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
DownloadStringCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
DownloadStringCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
EndPoint
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
EndpointPermission
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
FileWebRequest
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
FileWebResponse
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
FtpStatusCode
-
-
Yes
Yes
Yes
Yes
Yes
Yes
FtpWebRequest
-
-
Yes
Yes
Yes
Yes
Yes
Yes
FtpWebResponse
-
-
Yes
Yes
Yes
Yes
Yes
Yes
GlobalProxySelection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HttpContinueDelegate
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HttpListener
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerBasicIdentity
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerContext
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerException
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerPrefixCollection
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerRequest
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerResponse
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpListenerTimeoutManager
-
-
-
-
-
-
Yes
Yes
HttpRequestHeader
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpResponseHeader
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpStatusCode
-
-
Yes
Yes
Yes
Yes
Yes
Yes
HttpVersion
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HttpWebListener
-
-
-
-
-
-
-
-
HttpWebRequest
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
HttpWebResponse
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IAuthenticationModule
-
-
-
Yes
Yes
Yes
Yes
Yes
ICertificatePolicy
-
-
-
Yes
Yes
Yes
Yes
Yes
ICredentialPolicy
-
-
-
Yes
Yes
Yes
Yes
Yes
ICredentials
-
-
-
Yes
Yes
Yes
Yes
Yes
ICredentialsByHost
-
-
-
Yes
Yes
Yes
Yes
Yes
INetworkProgress
-
-
-
-
-
-
Yes
Yes
IPAddress
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPEndPoint
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IPEndPointCollection
-
-
-
-
Yes
Yes
Yes
Yes
IPHostEntry
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
IUnsafeWebRequestCreate
-
-
-
-
-
-
Yes
Yes
IWebProxy
-
-
-
Yes
Yes
Yes
Yes
Yes
IWebProxyScript
-
-
-
Yes
Yes
Yes
Yes
Yes
IWebRequestCreate
-
-
-
Yes
Yes
Yes
Yes
Yes
ListenerWebRequest
-
-
-
-
-
-
-
-
ListenerWebResponse
-
-
-
-
-
-
-
-
NetworkAccess
-
-
Yes
Yes
Yes
Yes
Yes
Yes
NetworkCredential
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
NetworkProgressChangedEventArgs
-
-
-
-
-
-
Yes
Yes
OpenReadCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
OpenReadCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
OpenWriteCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
OpenWriteCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
ProtocolViolationException
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SecurityProtocolType
-
-
Yes
Yes
Yes
Yes
Yes
Yes
ServicePoint
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
ServicePointManager
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SocketAddress
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SocketPermission
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SocketPermissionAttribute
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SslClientStream
-
-
-
-
-
-
-
-
SslServerStream
-
-
-
-
-
-
-
-
TransportContext
-
-
-
-
-
Yes
Yes
Yes
TransportType
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UiSynchronizationContext
-
-
-
-
-
-
Yes
Yes
UploadDataCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadDataCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadFileCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadFileCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadProgressChangedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadProgressChangedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadStringCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadStringCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadValuesCompletedEventArgs
-
-
Yes
Yes
Yes
Yes
Yes
Yes
UploadValuesCompletedEventHandler
-
-
Yes
Yes
Yes
Yes
Yes
Yes
WebClient
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebException
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebExceptionStatus
-
-
Yes
Yes
Yes
Yes
Yes
Yes
WebHeaderCollection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebPermission
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebPermissionAttribute
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebProxy
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebRequest
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebRequestMethods
-
-
Yes
Yes
Yes
Yes
Yes
Yes
WebResponse
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
WebUtility
-
-
-
-
-
Yes
Yes
Yes
WriteStreamClosedEventArgs
-
-
-
-
-
-
Yes
Yes
WriteStreamClosedEventHandler
-
-
-
-
-
-
Yes
Yes