daogu

I have tables as below
1.Bill_Head
Bill_No
Bill_Date
Fin_Year_Cd
Remarks
2.Bill_Tail
Bill_No
Product_Cd
Amount
Ded_Amount
Net_Amount
3.Bill_Tail_Det
Bill_No
Product_Cd
Quantity
Rate
Interest_Percent
Service_Charge
Vat_Tax_Percent

The Relation is like
Between BILL_HEAD and BILL_TAIL is Master Details Relation
Between BILL_TAIL and BILL_TAIL_DET is one to one relation
In single form i am not able to insert record.
If i build Master details between BILL_HEAD and BILL_TAIL, BILL_TAIL and BILL_TAIL_DET, when i run the for to insert data.
I will put the [...]