>>Reload and rebind the data from database is the better way.
>>
>>But the database and application design not allow me to do that. I have to store the dataset as temporary data and only store all of them into the database when user clicks submit button.
>
>I'd recommend you dump that data into a temporary table and delete the data when it get added to your primary table. You can timestamp the temporary data and delete it occasionally when you deem it timed out.
>
>DataSets in Session are just a bad call if you have even reasonable volume of traffic on your site.

Rick,
PMFJI, but would this still be the best method to take if your page does a postback? What are your feelings with a custom business object instead of a dataset... do you feel those are any better to store in a session?