ช่วยหน่อยครับ....ผมเขียนให้โปรแกรม C# วนลูปไม่ได้ครับ...

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace BluetoothOPPClientDemo
{
    public partial class fmMain : Form
    {
        public fmMain()
        {
            InitializeComponent();
        }

        private void fmMain_Load(object sender, EventArgs e)
        {
            wclAPI.Load();
        }

        private void fmMain_FormClosed(object sender, FormClosedEventArgs e)
        {
            wclAPI.Unload();
        }

       

        private void btDiscover_Click(object sender, EventArgs e)
        {

            wcl.wclBluetoothRadios Radios = new wcl.wclBluetoothRadios();
            if (wcl.wclErrors.wclShowError(wclBluetoothDiscovery.EnumRadios(Radios)))
            {
                Radios = null;
                return;
            }

            wcl.wclErrors.wclShowError(wclBluetoothDiscovery.Discovery(Radios[0]));
            Radios = null;
        }

        private void wclBluetoothDiscovery_OnDiscoveryStarted(object sender, wcl.wclBluetoothDiscoveryStartedEventArgs e)
        {
            lvDevices.Items.Clear();
           
        }

        private void wclBluetoothDiscovery_OnDiscoveryComplete(object sender, wcl.wclBluetoothDiscoveryCompleteEventArgs e)
        {
            if (e.Devices == null)
                MessageBox.Show("Error discovering");
            else
                if (e.Devices.Count == 0)
                    MessageBox.Show("Nothing found");
                else
                    for (uint i = 0; i < e.Devices.Count; i++)
                    {
                        wcl.wclBluetoothDevice Device = e.Devices[i];
                        ListViewItem Item = lvDevices.Items.Add(Device.Address);
                        string str = "";
                        Device.GetName(e.Radio, ref str);
                        Item.SubItems.Add(str);
                    
                    }
            //__________________________________วนลูปทั้งชุดด้านล่างพร้อมทั้งเพิ่มค่า [ ] ในฟังก์ชัน ขึ้นรอบละหนึ่ง lvDevices.Items[0].Text; จนครบจำนวน Items ใน  lvDevices
            
                if (lvDevices.Items.Count == 0)
                    MessageBox.Show("Select device");
                else
                {
                    wcl.wclBluetoothRadios Radios = new wcl.wclBluetoothRadios();
                    if (wcl.wclErrors.wclShowError(wclBluetoothDiscovery.EnumRadios(Radios)))
                    {
                        Radios = null;
                        return;
                    }
                    string DeAddress = lvDevices.Items[0].Text; 
                    wclClient.BluetoothParams.Address = DeAddress;
                    wclClient.BluetoothParams.Radio = Radios[0];
                    wclClient.Transport = wcl.wclClientTransport.ctBluetooth;
                    wcl.wclErrors.wclShowError(wclClient.Connect());

                    Radios = null;
                }
        }

        private void wclClient_OnConnect(object sender, wcl.wclConnectEventArgs e)
        {

        }

        private void wclClient_OnDisconnect(object sender, EventArgs e)
        {
            
        }

        private void btDisconnect_Click(object sender, EventArgs e)
        {
            wclClient.Disconnect();
        }
              private void btOpenOBEX_Click(object sender, EventArgs e)
        {
      
            wcl.wclErrors.wclShowError(wclClient.OpenOBEXSession());
            if (OpenFileDialog.ShowDialog() == DialogResult.OK)
            {
                System.IO.FileStream Stream = new System.IO.FileStream(OpenFileDialog.FileName, System.IO.FileMode.Open, System.IO.FileAccess.Read);
                String AFile = System.IO.Path.GetFileName(OpenFileDialog.FileName);
                wcl.wclErrors.wclShowError(wclClient.Put(AFile, Stream));
            }
        }

        private void wclClient_OnOBEXConnect(object sender, wcl.wclConnectEventArgs e)
        {

        }

        private void wclClient_OnOBEXDisconnect(object sender, EventArgs e)
        {
    
        }

        private void wclClient_OnOBEXProgress(object sender, wcl.wclOBEXProgressEventArgs e)
        {
            ProgressBar.Maximum = (int)e.Size;
            ProgressBar.Value = (int)e.Position;
        }

        private void wclClient_OnOBEXPutComplete(object sender, wcl.wclConnectEventArgs e)
        {
            ProgressBar.Value = 0;
            if (e.Error == wcl.wclErrors.WCL_E_SUCCESS)
                MessageBox.Show("Put complete with success");
            else
                MessageBox.Show("Put complete with error: " + e.Error.ToString());
            wclClient.Disconnect();
            wcl.wclErrors.wclShowError(wclClient.CloseOBEXSession());
        }  
    }
}