private void GetData(int ch)
{
if (ch != 0)
{
cylinder_dealer_keeper cd = new cylinder_dealer_keeper();
ArrayList arr = cd.GetData(ch) ;
Session["da"] = arr[0];
Session["ds"] = arr[1];
}
else
{
cylinder_comp_keeper ck = new cylinder_comp_keeper();
ArrayList arr = ck.GetData(ch);
Session["da"] = arr[0];
Session["ds"] = arr[1];
}
}
