求助:选中的项添列出来用什么好

我建了个有CheckBox的DataGrid,想实现当有CheckBox被选中时,就将选中的项添列出来,遇到的问题是用什么控件来放选中的项又方便又快呢?
asp:DataGrid ID="DataGrid1" runat="server" >
<SelectedItemStyle BackColor="White" Font-Bold="True" />
<HeaderStyle BackColor="#00CC66" Font-Bold="True" ForeColor="White" />
<ItemStyle BackColor="White" />
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<asp:CheckBox runat=server CssClass=CheckBox ID=rad/>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="Cou_class_ID" Visible="False"></asp:BoundColumn>
<asp:BoundColumn DataField="Cou_name" HeaderText="课程名"></asp:BoundColumn>
<asp:BoundColumn DataField="Cou_period" HeaderText="学时"></asp:BoundColumn>
<asp:BoundColumn DataField="user_name" HeaderText="教师"></asp:BoundColumn>
<asp:BoundColumn DataField="Cou_connect" HeaderText="关联" Visible=False></asp:BoundColumn>
<asp:TemplateColumn>
</Columns>
<PagerStyle BackColor="#00CC66" ForeColor="Black" HorizontalAlign="Justify" Mode="NumericPages" />
</asp:DataGrid>