Hello,

This can be done easily using either templated columns, or setting the columns type of the grid column to dropdown list. In case #1, you can use something like that:

igtbl:UltraWebGrid ID="UltraWebGrid1" runat="server" Height="200px" Width="325px"
        DataSourceID="AccessDataSource1" >
        <Bands>
            <igtbl:UltraGridBand>
                <Columns> 
                    <igtbl:TemplatedColumn>
                        <CellTemplate>
                            <asp:DropDownList
                                runat="server"
                                ID="DropDownList1">
                               <Items>

                                    ...

                               </Items>
                             </asp:DropDownList>
                        </CellTemplate>
                    </igtbl:TemplatedColumn>                 
                </Columns>               
            </igtbl:UltraGridBand>
        </Bands>
        ...
</igtbl:UltraWebGrid>
       

In case #2, what you can take a look at is the ValueList functionality of the grid column.