storing data

[Guest]

hi!!

i have several .aspx-pages that use web-services to get data

i bind datatables to my grids

in winforms when i change something in a grid the right value is updated in the dataset

i can then do serveral changes and click store

then i send dataset.getchanges back to the server

how am i supposed to do this in asp.net
each time i click something the webpage class is lost and so is the dataset

where is the data i change stored
how do i send the changes back to the server

or do i have to send each cell that is changed back to the server
i would prefer to make changes to serveral tables before i update the database

regard
geir sann