Question - Master-Detail

[Izzue]

Hello

I am using vs2005 to develop a web system

I create the 2 SQLdatasource, link up to datagrid and Formview

How to set the datagrid and Formview once user modify the data, dont save to
database, just save to a temp table

then i create a SAVE button , after user click it. all data will save to
Database (use Transaction.... commit)

Such as SALE and SALE Details page....

I found that window form have a bindnatvigator... and binddatasource, but
this object cannot use on WEB form

Plese help! thanks

Teddy