获取本地计算机名和IP地址

 //注意使用using System.Net;

string HostName = Dns.GetHostName();

//遍历地址列表，如果电脑有多网卡只能这样遍历显示
IPAddress[] iplist = Dns.GetHostAddresses(HostName);
for (int i = 0; i < iplist.Length; i++)
{
if (iplist[i].AddressFamily.ToString() == "InterNetwork")
comboBox1.Items.Add(iplist[i].ToString());
}
comboBox1.Text = comboBox1.Items[0].ToString();