CSharp获取网关并检测网络是否正常

1、引用库类

using System.Management;

2、关键代码

/* 获取网关 */ 
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration"); 
ManagementObjectCollection moc = mc.GetInstances(); 
string gatw = ""; 
foreach (ManagementObject mo in moc) 
{ 
    if (!(bool)mo["IPEnabled"]) 
        continue; 

    string[] gateways = (string[])mo["DefaultIPGateway"]; 
    foreach (string gw in gateways) 
        gatw += gw; 

    //MessageBox.Show(gatw); 
    break; 
} 
//return;

/* 检查网络是否正常 www.it165.net */ 
Ping p = new Ping(); 
PingReply pr = p.Send(gatw); //p.Send("192.168.1.1"); 
if (pr.Status != IPStatus.Success) 
{ 
    MessageBox.Show("请检查网络"); 
    return; 
}