C#

System.Net.Sockets.SocketException: An invalid argument was supplied
   at System.Net.Sockets.Socket.IOControl(Int32 ioControlCode, Byte[] optionInValue, Byte[] optionOutValue)
   at System.Net.Sockets.Socket.IOControl(IOControlCode ioControlCode, Byte[] optionInValue, Byte[] optionOutValue)

private void checkIP()
        {

            //mainSocket.Close();
            //   mainSocket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);
            mainSocket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);
            mainSocket.Bind(new IPEndPoint(IPAddress.Any,0));// Parse(strIP), 0));
            mainSocket.SetSocketOption(SocketOptionLevel.IP,          //Applies only to IP packets
                           SocketOptionName.HeaderIncluded, //Set the include the header
                           true);                           //option to true
            byte[] byTrue = new byte[4] { 1, 0, 0, 0 };
            byte[] byOut = new byte[4] { 1, 0, 0, 0 }; //Capture outgoing packets
          mainSocket.IOControl(IOControlCode.ReceiveAll,              //Equivalent to SIO_RCVALL constant//of Winsock 2
                   byTrue,
                   byOut);
                
            mainSocket.BeginReceive(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnReceive), null);
            timer1Sec.Enabled = true;
        }  
 private void OnReceive(IAsyncResult ar)
        {
            try
            {
                int nReceived = mainSocket.EndReceive(ar);

                //Analyze the bytes received...

                ParseData(byteData, nReceived);

            }

            catch (Exception ex)
            {
                //   MessageBox.Show(ex.Message, "MJsniffer", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

public enum Color
    {
     Any,
     D+, 
     D, 
     D-, 
     E+ 
    };

.
.
.
if (dat.Tables["SQL Temp Table"].Rows.Count > 0)
                        foreach (DataRow dataRow in dat.Tables[0].Rows)
                        {
                            ListViewItem item = new ListViewItem();
                            item.Text = dataRow[0].ToString() + "- " + dataRow[1].ToString();
                            listView1.Items.Add(item);
// Set the view to show details.
    listView1.View = View.Details;
    // Allow the user to edit item text.
    listView1.LabelEdit = true;
    // Allow the user to rearrange columns.
    listView1.AllowColumnReorder = true;
    // Display check boxes.
    listView1.CheckBoxes = true;
    // Select the item and subitems when selection is made.
    listView1.FullRowSelect = true;
    // Display grid lines.
    listView1.GridLines = true;
    // Sort the items in the list in ascending order.
    listView1.Sorting = SortOrder.Ascending;
.
.
.                       }

[XmlRoot]
public class AList
{
   public List<B> ListOfBs {get; set;}
}

public class B
{
   public string BaseProperty {get; set;}
}

public class C : B
{
    public string SomeProperty {get; set;}
}

public class Main
{
    public static void Main(string[] args)
    {
        var aList = new AList();
        aList.ListOfBs = new List<B>();
        var c = new C { BaseProperty = "Base", SomeProperty = "Some" };
        aList.ListOfBs.Add(c);

        var type = typeof (AList);
        var serializer = new XmlSerializer(type);
        TextWriter w = new StringWriter();
        serializer.Serialize(w, aList);
    }    
}

TypeDescriptor.AddAttributes(typeof(AList), new[] { new XmlIncludeAttribute(c.GetType()) });

var type = typeof (AList);