I am building one billing application in asp.net which will be used in intranet. I dont want to add the items of bill one by one. Instead of that I want when i click button, one window shoul open with coloumns like item, rate, qty total. Item should have combo box from which I wil select item and rate will get automatically displayed. when I add number of items, I will just click one button and all data will go to the database in one shot. Is it possible using AJAX.
REMEMBER I WANT ONLY SINGLE TRIP TO THE SERVER NOT MULTIPLE

pLEASE HELP ME...