I want to make simple mini purchase order sales contract.my requirement is given below

1.first i want to add customer details.

2.next i want to open aother form with added customer.the i add purchase order details.

if i want to search customer wise like i have added 5 customers in my database.now i want to enter customer name then product details open in datagridview having only perticular customer.then i wnat to print that details

rgds