Hi I have two tables
shipment (master)
shipment_details (child)
I am trying to use following code in shipment table but it does not updated anything in shipment details table
global $dal;
$tblShipmentdetail = $dal->Table("shipment_details");
$tblShipmentdetail->Params["Shipment_Line_No"]=1;
$tblShipmentdetail->FOB=10;
$tblShipmentdetail->Update();
Any help please