Progress Bar / Wait message in a BSP
I am developing a BSP application which would collect the user input and update multiple customised transactions .
Since the updation takes a longer time I need to show a 'progress bar' or a 'wait message' from the instant i initiate data updates and then call the initial page again with message that data has been successfully updated or other wise with error list.
I searched for the solution in WEBLOGS and FORUM but with no success .
Please let me know how can i get about it . Solution with sample code would be a big help.