[RESOLVED] Send bulk SMS progressbar and backgroundworker

[maps]

Okay. I have an issue an i need help. I am sending a message to a list of numbers stored in a text file. What i do is to loop through all the numbers and send an sms to one after the other using the method used to send to a single number.

Issue is: i want to display progress in a maquee progressbar untill when i finish sending. I guess this works hand in hand with a backgroundworker. I have tried this but i get an error "Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on." on the line with "objSmsMessage.Data = tbMessage.Text;"

below is my code. I need help. Iam so daft when it comes to progressbars and the backgroundworker.

SENDING MESSAGE

   private void btnStart_Click(object sender, EventArgs e)
        {
            lblConnectionStatus.Text = "";
            btnCancel.Enabled = true;
            btnStart.Enabled = false;
            ProgressBar1.Value = 0;
            Cursor = Cursors.WaitCursor;
            backgroundWorker1.RunWorkerAsync();
        }

    private void SendBulk()
        {
            // Set Cursor
            //Cursor.Current = Cursors.WaitCursor;

            for (int i = 0; i < 100; i++)
            {
                using (StreamReader reader = File.OpenText(tbMessageRecipient.Text))
                {
                    string line;
                    while ((line = reader.ReadLine()) != null)
                    {
                        objSmsMessage.Recipient = line;

                        string strMessageReference;
                        object obj;

                        objSmsMessage.Clear();
                        objSmsMessage.RequestDeliveryStatus = _frmSmsSendOptions.bDeliveryReport ? -1 : 0;

                        //Add Many Reciepients and message is sent line by line.
                        objSmsMessage.Recipient = line;

                        objSmsMessage.Data = tbMessage.Text;
                        objSmsMessage.Format = objConstants.asMESSAGEFORMAT_TEXT;
                        if (chkUnicode.Checked)
                        {
                            objSmsMessage.Format = objConstants.asMESSAGEFORMAT_UNICODE;
                            if (_frmSmsSendOptions.bImmediateDisplay)
                                objSmsMessage.Format = objConstants.asMESSAGEFORMAT_UNICODE_FLASH;
                            if (_frmSmsSendOptions.bMultipart)
                                objSmsMessage.Format = objConstants.asMESSAGEFORMAT_UNICODE_MULTIPART;
                        }
                        else
                        {
                            objSmsMessage.Format = objConstants.asMESSAGEFORMAT_TEXT;
                            if (_frmSmsSendOptions.bImmediateDisplay)
                                objSmsMessage.Format = objConstants.asMESSAGEFORMAT_TEXT_FLASH;

                            if (_frmSmsSendOptions.bMultipart)
                                objSmsMessage.Format = objConstants.asMESSAGEFORMAT_TEXT_MULTIPART;
                        }
                        if (_frmSmsSendOptions.bUDH)
                            objSmsMessage.Format = objConstants.asMESSAGEFORMAT_DATA_UDH;


                        obj = objSmsMessage;
                        //SEND MESSAGE
                        strMessageReference = objSmppProtocol.Send(ref obj);
                        UpdateResult(objSmppProtocol.LastError);
                        if (objSmppProtocol.LastError == 0)
                        {
                            //Add sent data to the datagridview.
                            //get the last mID and add 1
                            List<OutBox> messageAdded = new List<OutBox>();
                            messageAdded.Add(new OutBox(1, objSmsMessage.Data, Convert.ToDateTime(DateTime.Now.ToString()), "Delivered", Convert.ToDateTime(DateTime.Now.ToString()), Convert.ToDateTime(DateTime.Now.ToString())));
                            dgvOutbox.DataSource = messageAdded;
                            FormatDgvOutBox();
                        }


                        // Reset Options in case of a UDH message (i.e.: WAP, Picture, Ringtone)
                        if (_frmSmsSendOptions.bUDH)
                        {	// If this is not done, you cannot send plain text after you've sent WAP, Ringines, Pictures
                            _frmSmsSendOptions.ResetFlags();
                            tbMessage.Text = "";
                        }
                    }
                    // Reset Cursor
                    //Cursor.Current = Cursors.Default;
                }
                backgroundWorker1.ReportProgress(i);
                Thread.Sleep(100);
            }

        }

      private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            // Get the BackgroundWorker that raised this event.
            //BackgroundWorker worker1 = sender as BackgroundWorker;
            //e.Result = SumNumbers(Convert.ToDouble(e.Argument),worker1,e);
             SendBulk();
        }

   private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            ProgressBar1.Value = e.ProgressPercentage;
        }

        private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            if (e.Error != null)
                MessageBox.Show(e.Error.Message);
            else if (e.Cancelled)
                MessageBox.Show("Cancelled");
            else
                lblConnectionStatus.Text = "Complete";

            btnStart.Enabled = true;
            btnCancel.Enabled = false;
            Cursor = Cursors.Default;


            
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            backgroundWorker1.CancelAsync();
            btnCancel.Enabled = false;
            btnStart.Enabled = true;
        }