C#

using System.Collections.Generic;
using System.Windows.Forms;

class testForm : Form
{
    testForm()
    {
        MultiComboBox cm = new MultiComboBox() ;
        List<Product> prodList = new List<Product>();
        prodList.Add(new Product() { Code = "001", Name = "Wine" });
        prodList.Add(new Product() { Code = "002", Name = "Beer" });
        cm.DataSource = prodList;
        Controls.Add(cm);
    }

    class MultiComboBox : ComboBox
    {

        protected override void OnSelectedIndexChanged(System.EventArgs e)
        {
            Product product = (Product)Items[SelectedIndex];
            SelectedItem = product.Code;
            base.OnSelectedIndexChanged(e);
        }

    }

    class Product
    {
        public string Code { get; set; }
        public string Name { get; set; }

        public override string ToString()
        {
            return Code + " " + Name;
        }

    }

    static void Main()
    {
        Application.Run(new testForm());
    }
}

MarkBrock wrote:

What on earth made you think you needed to post that here?

private int OnIncomingCall(int _callID, string _caller)<br />
        {<br />
            callID = _callID;<br />
            caller = _caller;       <br />
<br />
            if (this.btnAnswer.InvokeRequired)<br />
            {<br />
                this.btnAnswer.Invoke(new EventHandler(UpdateAnswerButton));<br />
            }<br />
            <br />
            if (this.lblCallStatus.InvokeRequired)<br />
            {<br />
                this.lblCallStatus.Invoke(new EventHandler(DisplayCaller));<br />
            }<br />
            this.tmrVibrate.Enabled = true; //Start the timer to enable vibration.<br />
          <br />
            drvAnswerCall(_callID, 180); // send: RINGING<br />
            <br />
            return 1;<br />
        }

//Timer to oscillate the vibration in the PDA for an incoming call alert.<br />
        //Timer is disabled when the user answers the call.<br />
        static Boolean ledStatus = true; //Status of when to turn on and off the vibration<br />
        private void tmrVibrate_Tick(object sender, EventArgs e)<br />
        {<br />
            if (ledStatus == true)<br />
            {<br />
                vibrateAlert.SetLedStatus(1, Led.LedState.On);<br />
                ledStatus = false;<br />
            }<br />
            else<br />
            {<br />
                vibrateAlert.SetLedStatus(1, Led.LedState.Off);<br />
                ledStatus = true;<br />
            }<br />
        }