WPF 检测计算机网络连接情况

 1   public static class NetWork

 2     {

 3         [DllImport("wininet.dll")]

 4         private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);

 5 

 6         public static bool IsOnLine()

 7         {

 8             try

 9             {

10                 var connection = 0;

11                 return InternetGetConnectedState(out connection, 0);

12             }

13             catch (Exception)

14             {

15              throw;

16             }

17         }

18     }