Question Working with datagrid

[jahan]

hi,

I'm a beginner. Please help.

I want to make a new entry from datagrid view to the table. Is it possible?

if yes,

I have following table

customer(custID,custName)
order(order_no,custID,product)

Datagrid view should contain order_no,custID,custName,product

In a new entry, if enter 'order_no' and 'custID', it should display the custName.
Then after editing 'product' i should save datas to 'order' table.

Please help me (A sample program of similar problem will do for me)
Thanks in advance.