c#网络适配器列表

Question

我有代码,使用System.Net和System.Net.NetworkInformation引用,它生成我的网络连接名称列表.

一切似乎都很好并且工作正常,但是当我创建一个这样的代码,并将值导出到listbox1项目添加时,我只有一个网络连接名称,但实际上我有四个.

我怎么解决这个问题？

private void button1_Click(object sender, EventArgs e)
{
    Adapters obj = new Adapters();
    var value = obj.net_adapters();
    listBox1.Items.Add(value);
}

public class Adapters
{
    public string net_adapters()
    {
        string value = string.Empty;
        foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
        {
            value = nic.Name;
        }
        return value;
    }
}

Answer 1

我会修改你目前的代码:

public string net_adapters() 
{ 
    string value = string.Empty; 
    foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces()) 
    { 
        // bug in your original code right here is `=`
        // you proably meant to do something like value += ", " + nic.Name
        // which would not work well with listbox Items collection
        value = nic.Name; 
    } 
    return value; 
} 

这样:

public System.Collections.Generic.List<String> net_adapters() 
{ 
    List<String> values = new List<String>();
    foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces()) 
    { 
        values.Add(nic.Name);
    } 
    return values; 
}

一种更奇特的方式(虽然它可能无关紧要,因为GetAllNetworkIntefaces可能阻塞,直到它有一个完整列表)将使用IEnumerable<T>和yield return:

public IEnumerable<String> net_adapters() 
{ 
    foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces()) 
    { 
        yield return nic.Name;
    } 
    yield break;
}

不管怎样,你会像这样使用它:

var obj = new Adapters();    
var values = obj.net_adapters();
listBox1.ItemsSource = values;

(另外,我建议您使用.NET Framework命名指南)