System.Net Namespace

管理在进行客户端身份验证期间调用的身份验证模块。Manages the authentication modules called during the client authentication process.

包含 Internet 服务器的身份验证消息。Contains an authentication message for an Internet server.

提供一组用于管理 Cookie 的属性和方法。Provides a set of properties and methods that are used to manage cookies. 无法继承此类。This class cannot be inherited.

为 Cookie 类的实例提供集合容器。Provides a collection container for instances of the Cookie class.

为 CookieCollection 对象的集合提供容器。Provides a container for a collection of CookieCollection objects.

向 CookieContainer 添加 Cookie 出错时引发的异常。The exception that is thrown when an error is made adding a Cookie to a CookieContainer.

为多个凭据提供存储空间。Provides storage for multiple credentials.

提供简单的域名解析功能。Provides simple domain name resolution functionality.

将网络终结点表示为主机名或 IP 地址和端口号的字符串表示方法。Represents a network endpoint as a host name or a string representation of an IP address and a port number.

控制对网络上域名系统 (DNS) 服务器的访问权限。Controls rights to access Domain Name System (DNS) servers on the network.

指定从域名服务器中请求信息的权限。Specifies permission to request information from Domain Name Servers.

为 DownloadDataCompleted 事件提供数据。Provides data for the DownloadDataCompleted event.

为 WebClient 的 DownloadProgressChanged 事件提供数据。Provides data for the DownloadProgressChanged event of a WebClient.

为 DownloadStringCompleted 事件提供数据。Provides data for the DownloadStringCompleted event.

标识网络地址。Identifies a network address. 这是一个 abstract 类。This is an abstract class.

定义由 SocketPermission 实例授权的终结点。Defines an endpoint that is authorized by a SocketPermission instance.

提供 WebRequest 类的文件系统实现。Provides a file system implementation of the WebRequest class.

提供 WebResponse 类的文件系统实现。Provides a file system implementation of the WebResponse class.

实现文件传输协议 (FTP) 客户端。Implements a File Transfer Protocol (FTP) client.

封装文件传输协议 (FTP) 服务器对请求的响应。Encapsulates a File Transfer Protocol (FTP) server's response to a request.

包含所有 HTTP 请求的全局默认代理实例。Contains a global default proxy instance for all HTTP requests.

提供一个简单的、可通过编程方式控制的 HTTP 协议侦听器。Provides a simple, programmatically controlled HTTP protocol listener. 无法继承此类。This class cannot be inherited.

包含来自基本身份验证请求的用户名和密码。Holds the user name and password from a basic authentication request.

提供对 HttpListener 类使用的请求和响应对象的访问。Provides access to the request and response objects used by the HttpListener class. 无法继承此类。This class cannot be inherited.

当处理 HTTP 请求出错时引发的异常。The exception that is thrown when an error occurs processing an HTTP request.

表示用于存储 HttpListener 对象的统一资源标识符 (URI) 前缀的集合。Represents the collection used to store Uniform Resource Identifier (URI) prefixes for HttpListener objects.

描述传入 HttpListener 对象的 HTTP 请求。Describes an incoming HTTP request to an HttpListener object. 无法继承此类。This class cannot be inherited.

表示对 HttpListener 对象正在处理的请求的响应。Represents a response to a request being handled by an HttpListener object.

要用于 HttpListener 对象的超时管理器。The timeout manager to use for an HttpListener object.

定义 HttpWebRequest 和 HttpWebResponse 类支持的 HTTP 版本号。Defines the HTTP version numbers that are supported by the HttpWebRequest and HttpWebResponse classes.

提供 WebRequest 类的 HTTP 特定的实现。Provides an HTTP-specific implementation of the WebRequest class.

提供 WebResponse 类的 HTTP 特定的实现。Provides an HTTP-specific implementation of the WebResponse class.

提供 Internet 协议 (IP) 地址。Provides an Internet Protocol (IP) address.

将网络终结点表示为 IP 地址和端口号。Represents a network endpoint as an IP address and a port number.

表示用于将网络终结点存储为 IPEndPoint 对象的集合。Represents a collection used to store network endpoints as IPEndPoint objects.

为 Internet 主机地址信息提供容器类。Provides a container class for Internet host address information.

为基于密码的身份验证方案（如基本、摘要式、NTLM 和 Kerberos 身份验证）提供凭据。Provides credentials for password-based authentication schemes such as basic, digest, NTLM, and Kerberos authentication.

提供网络进度已更改事件的数据。Provides data for the network progress changed event.

为 OpenReadCompleted 事件提供数据。Provides data for the OpenReadCompleted event.

为 OpenWriteCompleted 事件提供数据。Provides data for the OpenWriteCompleted event.

使用网络协议期间出错时引发的异常。The exception that is thrown when an error is made while using a network protocol.

提供 HTTP 连接的连接管理。Provides connection management for HTTP connections.

管理 ServicePoint 对象集合。Manages the collection of ServicePoint objects.

存储 EndPoint 派生类的序列化信息。Stores serialized information from EndPoint derived classes.

控制在传输地址上建立或接受连接的权利。Controls rights to make or accept connections on a transport address.

指定安全操作以控制 Socket 连接。Specifies security actions to control Socket connections. 无法继承此类。This class cannot be inherited.

TransportContext 类提供有关基础传输层的附加上下文。The TransportContext class provides additional context about the underlying transport layer.

为同步模型中使用的托管 UI 提供同步上下文。Provides the synchronization context for the managed UI used in synchronization models.

为 UploadDataCompleted 事件提供数据。Provides data for the UploadDataCompleted event.

为 UploadFileCompleted 事件提供数据。Provides data for the UploadFileCompleted event.

为 WebClient 的 UploadProgressChanged 事件提供数据。Provides data for the UploadProgressChanged event of a WebClient.

为 UploadStringCompleted 事件提供数据。Provides data for the UploadStringCompleted event.

为 UploadValuesCompleted 事件提供数据。Provides data for the UploadValuesCompleted event.

提供用于将数据发送到由 URI 标识的资源及从这样的资源接收数据的常用方法。Provides common methods for sending data to and receiving data from a resource identified by a URI.

通过可插入协议访问网络期间发生错误时引发的异常。The exception that is thrown when an error occurs while accessing the network through a pluggable protocol.

包含与请求或响应关联的协议标头。Contains protocol headers associated with a request or response.

控制访问 HTTP Internet 资源的权限。Controls rights to access HTTP Internet resources.

指定权限以访问 Internet 资源。Specifies permission to access Internet resources. 无法继承此类。This class cannot be inherited.

包含 WebRequest 类的 HTTP 代理设置。Contains HTTP proxy settings for the WebRequest class.

对统一资源标识符 (URI) 发出请求。Makes a request to a Uniform Resource Identifier (URI). 这是一个 abstract 类。This is an abstract class.

WebRequestMethods.Ftp、WebRequestMethods.File 和 WebRequestMethods.Http 类的容器类。Container class for WebRequestMethods.Ftp, WebRequestMethods.File, and WebRequestMethods.Http classes. 无法继承此类。This class cannot be inherited.

表示可用于 FILE 请求的文件协议方法的类型。Represents the types of file protocol methods that can be used with a FILE request. 无法继承此类。This class cannot be inherited.

表示可与 FTP 请求一起使用的 FTP 协议方法的类型。Represents the types of FTP protocol methods that can be used with an FTP request. 无法继承此类。This class cannot be inherited.

表示可与 HTTP 请求一起使用的 HTTP 协议方法的类型。Represents the types of HTTP protocol methods that can be used with an HTTP request.

提供来自统一资源标识符 (URI) 的响应。Provides a response from a Uniform Resource Identifier (URI). 这是一个 abstract 类。This is an abstract class.

提供在处理 Web 请求时用于编码和解码 URL 的方法。Provides methods for encoding and decoding URLs when processing Web requests.

为 WriteStreamClosed 事件提供数据。Provides data for the WriteStreamClosed event.

为 Web 客户端身份验证模块提供基本身份验证接口。Provides the base authentication interface for Web client authentication modules.

验证服务器证书。Validates a server certificate.

定义凭据策略，该凭据策略将用于使用 WebRequest 及其派生类发出的资源请求。Defines the credential policy to be used for resource requests that are made using WebRequest and its derived classes.

提供用于检索 Web 客户端身份验证的凭据的基本身份验证接口。Provides the base authentication interface for retrieving credentials for Web client authentication.

提供用于检索主机、端口和身份验证类型的凭据的接口。Provides the interface for retrieving credentials for a host, port, and authentication type.

提供有关通过网络发送数据的网络进度的信息。Provides information on network progress in sending data over the network.

对统一资源标识符 (URI) 创建一个不安全的 WebRequest。Creates an unsafe WebRequest to a Uniform Resource Identifier (URI).

提供基接口以实现对 WebRequest 类的代理访问。Provides the base interface for implementation of proxy access for the WebRequest class.

提供要加载的基接口并执行脚本以进行自动代理检测。Provides the base interface to load and execute scripts for automatic proxy detection.

提供用于创建 WebRequest 实例的基接口。Provides the base interface for creating WebRequest instances.

指定身份验证的协议。Specifies protocols for authentication.

表示文件压缩和解压缩编码格式，该格式将用来压缩在 HttpWebRequest 的响应中收到的数据。Represents the file compression and decompression encoding format to be used to compress the data received in response to an HttpWebRequest.

指定为文件传输协议 (FTP) 操作返回的状态代码。Specifies the status codes returned for a File Transfer Protocol (FTP) operation.

可能在客户端请求中指定的 HTTP 标头。The HTTP headers that may be specified in a client request.

可在服务器响应中指定的 HTTP 标头。The HTTP headers that can be specified in a server response.

包含为 HTTP 定义的状态代码的值。Contains the values of status codes defined for HTTP.

指定网络访问权限。Specifies network access permissions.

指定 Schannel 安全包支持的安全协议。Specifies the security protocols that are supported by the Schannel security package.

为 SocketPermission 和 Socket 类定义传输类型。Defines transport types for the SocketPermission and Socket classes.

为 WebException 类定义状态代码。Defines status codes for the WebException class.

为 HttpListener 实例选择身份验证方案。Selects the authentication scheme for an HttpListener instance.

表示指定 ServicePoint 的本地 Internet 协议地址和端口号的方法。Represents the method that specifies a local Internet Protocol address and port number for a ServicePoint.

表示将处理 WebClient 的 DownloadDataCompleted 事件的方法。Represents the method that will handle the DownloadDataCompleted event of a WebClient.

表示将处理 WebClient 的 DownloadProgressChanged 事件的方法。Represents the method that will handle the DownloadProgressChanged event of a WebClient.

表示将处理 WebClient 的 DownloadStringCompleted 事件的方法。Represents the method that will handle the DownloadStringCompleted event of a WebClient.

表示当客户端接收到连续响应时通知调用方的方法。Represents the method that notifies callers when a continue response is received by the client.

在确定要用于每个 HttpListener 请求的 ExtendedProtectionPolicy 时调用的委托。A delegate called to determine the ExtendedProtectionPolicy to use for each HttpListener request.

表示将处理 WebClient 的 OpenReadCompleted 事件的方法。Represents the method that will handle the OpenReadCompleted event of a WebClient.

表示将处理 WebClient 的 OpenWriteCompleted 事件的方法。Represents the method that will handle the OpenWriteCompleted event of a WebClient.

表示将处理 WebClient 的 UploadDataCompleted 事件的方法。Represents the method that will handle the UploadDataCompleted event of a WebClient.

表示将处理 WebClient 的 UploadFileCompleted 事件的方法。Represents the method that will handle the UploadFileCompleted event of a WebClient.

表示将处理 WebClient 的 UploadProgressChanged 事件的方法。Represents the method that will handle the UploadProgressChanged event of a WebClient.

表示将处理 WebClient 的 UploadStringCompleted 事件的方法。Represents the method that will handle the UploadStringCompleted event of a WebClient.

表示将处理 WebClient 的 UploadValuesCompleted 事件的方法。Represents the method that will handle the UploadValuesCompleted event of a WebClient.

表示将处理 WriteStreamClosed 的 WebClient 事件的方法。Represents the method that will handle the WriteStreamClosed event of a WebClient.