我如何检查网络连接？
问题描述：
什么是确定是否有可用的网络连接的最佳方式？
What is the best way to determine if there is a network connection available?
答
您可以为您在.NET 2.0的网络连接使用GetIsNetworkAvailable()$c$c>:
You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable():
System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()
要监视的IP地址或网络可用性的变化而变化使用事件从NetworkChange类：
To monitor changes in IP address or changes in network availability use the events from the NetworkChange class:
System.Net.NetworkInformation.NetworkChange.NetworkAvailabilityChanged
System.Net.NetworkInformation.NetworkChange.NetworkAddressChanged