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检查PC是否连接到局域网

发布于 2024-08-24 23:16:22 字数 123 浏览 7 评论 0原文

我想问两个问题，如果有人能回答我将不胜感激。

如何检查（使用C#）PC是否连接到LAN？
如何检查（使用 C#）我的电脑是否连接到 LAN

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幽蝶幻影 2024-08-31 23:16:22

尝试

System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()

Try

System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()

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絕版丫頭 2024-08-31 23:16:22

您想使用 Ping 来检查 PC 是否连接到 LAN。这是一个示例：

var ping = new Ping();
var options = new PingOptions { DontFragment = true };

//just need some data. this sends 10 bytes.
var buffer = Encoding.ASCII.GetBytes( new string( 'z', 10 ) );
var host = "127.0.0.1";

try
{
    var reply = ping.Send( host, 60, buffer, options );
    if ( reply == null )
    {
        MessageBox.Show( "Reply was null" );
        return;
    }

    if ( reply.Status == IPStatus.Success )
    {
        MessageBox.Show( "Ping was successful." );
    }
    else
    {
        MessageBox.Show( "Ping failed." );
    }
}
catch ( Exception ex )
{
    MessageBox.Show( ex.Message );
}

要检查您自己的计算机是否已连接，您可以对您知道应该解析的地址执行相同的操作，例如域控制器。

You want to use Ping to check whether a PC is connected to the LAN. Here's a sample:

var ping = new Ping();
var options = new PingOptions { DontFragment = true };

//just need some data. this sends 10 bytes.
var buffer = Encoding.ASCII.GetBytes( new string( 'z', 10 ) );
var host = "127.0.0.1";

try
{
    var reply = ping.Send( host, 60, buffer, options );
    if ( reply == null )
    {
        MessageBox.Show( "Reply was null" );
        return;
    }

    if ( reply.Status == IPStatus.Success )
    {
        MessageBox.Show( "Ping was successful." );
    }
    else
    {
        MessageBox.Show( "Ping failed." );
    }
}
catch ( Exception ex )
{
    MessageBox.Show( ex.Message );
}

To check if you own machine was connected, you could do the same to an address you know should resolve like say the domain controller.

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