passing data from one datagrid to another

Question

Ok I have two datagrid on two different pages. First datagrid shows all the equipment on the database and has a check box field in the datagrid. So my question that when I click on the checkbox and click on the submit button, I want that row to add on the second datagrid on the second page. Do we do it with session but how. So how do we pass the data from datagrid to another datagrid. Any help me good. It goes to the next page, that all I got.