hi i am making point of sale system.. i want to make empty grid and i want to add list box in first cell of each row, that list box contain items name so that when user select item all other cell of that row is filled by the respective data...for example i want to show 4 fields in grid ItemName, itemprice, Tax, Amount

so when user select item then its price and quantity should automatically be filled in respective cells and in last cell amount is clculated automatically.. if item price is 10 and quantity is 5 then amount fiels contain 50 but how can i work with grid???
need urgent help please guide me step by step...

hi vb5programmer.... thanks for your kind help ok i am going to google it again ...i hv google it also but cant find the solution thats why after disappointment i post my problem here :-(