Why these code can not send SMS to multiple once ONLY to one

Question

Hi!

I wrote these and works very well. I do write it just to send SMS. I was able to send at once only to one cellnumber. Its works.

try

{

WebClient client = new WebClient();

string to, msg;

to = lblNumberFlashMessage.Text;

msg = txtReceiveFlashMessage.Text;

string baseurl = "http://api.clickatell.com/http/sendmsg?user=xxx&password=xxx&api_id=xxx&to='" + to + "'&text='" + msg + "'";

client.OpenRead(baseurl);

MessageBox.Show("Message sent");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

Then when I use these codes that allow me to pass one by one throught a label.

Curiously, after to click on the button, its send the SMS by its send only the last number.

Other codes:

Control p;

p = ((Button)sender).Parent;

p.SelectNextControl(ActiveControl, true, true, true, true);

int i = 1;

if (cbxReadNomFlashMessage.SelectedIndex < cbxReadNomFlashMessage.Items.Count - 1)

{

cbxReadNomFlashMessage.SelectedIndex = cbxReadNomFlashMessage.SelectedIndex + i;

Application.DoEvents();

i++;

int milliseconds = 2000;

Thread.Sleep(milliseconds);

-----------------------------------------------

THEN THE WHOLE IS:

private void btnSentFlashMessage_Click(object sender, EventArgs e)

{

// This module of code was wrote by Panana

Control p;

p = ((Button)sender).Parent;

p.SelectNextControl(ActiveControl, true, true, true, true);

int i = 1;

if (cbxReadNomFlashMessage.SelectedIndex < cbxReadNomFlashMessage.Items.Count - 1)

{

cbxReadNomFlashMessage.SelectedIndex = cbxReadNomFlashMessage.SelectedIndex + i;

Application.DoEvents();

i++;

int milliseconds = 2000;

Thread.Sleep(milliseconds);

//These code by me

try

{

WebClient client = new WebClient();

string to, msg;

to = lblNumberFlashMessage.Text;

msg = txtReceiveFlashMessage.Text;

string baseurl = "http://api.clickatell.com/http/sendmsg?user=xxx&password=xxx&api_id=xxx&to='" + to + "'&text='" + msg + "'";

client.OpenRead(baseurl);

MessageBox.Show("Message sent");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}