private void getLastMsgBt_Click(object sender, RoutedEventArgs e)
{
int nb = -1;
try
{
nb = int.Parse(nbLastMsgTbx.Text);
}
catch (Exception)
{
}
if (nb > 0)
{
client.GetLastMessages(actorTbx.Text, nb, callback);
}
else
{
client.GetLastMessages(actorTbx.Text, callback);
}
}