ADO.NET 2.0 : Check Box and Dropdown List in a Datagrid

ADO.NET 2.0 : Can anyone tell me how to add either a check box or a dropdown list to a column in a datagrid.

Thanks in Adv
Srik

Using ItemTemplate tag in the datagrid...

hi we can simply drag and drop the checkbox or dropdown list inside columm of datagrid or write coding of particular control in columm tag of grid control bye