Checked Columns from one gridview to be displayed into another one

[Keira]

I have a grid view with check boxes and when some one selects a check box the values should create a grid view dynamically.Once the user sees all the selection in the other gridview he can then approve his selection or make changes in it.The check boxes grid may have hundreds of selections in which the user can select only 2-3 which appear in the second grid.Please suggest a solution.Thanks !