如何检查网络连接? [英] How do I check for a network connection?

问题描述

确定网络连接是否可用的最佳方法是什么?

What is the best way to determine if there is a network connection available?

推荐答案

您可以使用 GetIsNetworkAvailable():

You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable():

System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()

要监控 IP 地址的变化或网络可用性的变化，请使用 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

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