private void CB_Conveyor_SelectedIndexChanged(object sender, EventArgs e)
{
if (CB_Conveyor.SelectedItem != null && CB_Conveyor.SelectedItem.ToString() != "")
{
string[] data = db.GetConveyorInfor(CB_Conveyor.SelectedItem.ToString());
if (data != null && data.Length > 10)
{
CB_Commun.Checked = (data[3] != null && data[3].ToUpper() == "TRUE") ? true : false;
}
}
}