title: Use LINQ for AddRange to Listbox
body: <p>Hello I try To Convert My old code to new version with Linq but i have problem for do it
  old : </p>
  
  <pre><code>foreach (var item in NetworkInterface.GetAllNetworkInterfaces())
  {
      if (item.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
      {
          lstTrace.Items.Add(item.Name);
      }
  }
  </code></pre>
  
  <p>to this:</p>
  
  <pre><code>lstTrace.Items.Add(
      NetworkInterface.GetAllNetworkInterfaces()
          .Where(nic =&gt; nic.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
          .FirstOrDefault()
          .Name
  );
  </code></pre>
  
  <p>But it just returns one result.
  How can I get all found items?</p>