The connection profile API, which is part of Windows.Networking.Connectivity.NetworkInformation, provides connectivity, usage, and data plan information for established network connections. The connection profiles associated with a given mobile account can be retrieved by using the MobileBroadbandAccount API. 连接配置文件 API 允许移动宽带应用在移动宽带接口上查询网络连接的多个属性，包括：
GetNetworkConnectivityLevel Indicates whether the network is connected and if the network provides internet connectivity.
GetSignalBars Indicates the current number of signal bars displayed by the Windows UI for the connection.
GetNetworkUsageAsync Provides bytes sent, bytes received, and connectivity times for a connection profile.
此 API 还包括一个状态更改事件，每当作员接口上的连接发生更改时通知应用程序。 For more info about the NetworkStatusChanged event, see NetworkStatusChangedEventHandler delegate.