<obout:SuperForm ID="SuperForm1"
         runat="server"
         DataSourceID="SqlDataSource1"
         AutoGenerateRows="false">
        <Fields>
            <obout:TemplateField HeaderText="Ship Country">
                <ItemTemplate>
                    <%# GetCountries(Eval("CountryIds").ToString()) %>
                </ItemTemplate>
                <EditItemTemplate>
                    <obout:ComboBox  runat="server" ID="ComboBox1"  DataSourceID="SqlDataSource2" 
                     AutoClose="false"  DataSourceID="CountryID" SelectionMode="Multiple" 
                     DataTextField="ContinentName" SelectedValue='<%# Eval("CountryIds").ToString() %>' />
                </EditItemTemplate>
            </obout:TemplateField>
        </Fields>
</obout:SuperForm>