取DataList数据绑定text的值问题~

Question

我用DataList弄出了上面图的效果，下面那个数字是我用text绑定读出来的id~
现在问题是 我怎么点订购 之后把那个 text里面id值读到后台啊~用下面的代码能在页面上显示出所有的，但是 怎么读取哪个是我选中的啊？foreach (System.Web.UI.WebControls.DataListItem dl in this.dltcard.Items)
            {
                TextBox myText = (TextBox)dl.FindControl("TextBox1");
                strypid = myText.Text;
                Response.Write(strypid + "<br/>");
            }前台
<asp:DataList id="dltcard" RepeatColumns="2" Runat="server" Width="100%">
                                        <ItemTemplate>
                                        <table cellpadding="0" cellspacing="0" border="0" width="100%">
                                        <tr>
                                        <td style="width: 100px; height: 89px;"><a href="showinfo.aspx?id=<%#DataBinder.Eval(Container.DataItem,"ypbh") %>&name=<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" target="_blank" title="<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" style=" width:100%; height:25px;"><img alt="" src="images/20070830L9MR311CU165.jpg" style="border: 0px; width:100px; height:82px" /></a>
                                            <asp:TextBox ID="TextBox1" runat="server" Width="100px" Height="20px" Text='<%#DataBinder.Eval(Container.DataItem,"ypbh") %>'></asp:TextBox></td>
                                        <td style="height: 89px"><table  cellpadding="0" cellspacing="0" border="0" width="100%">
                                    
                                        <tr><td align="left" class="body">&nbsp;&nbsp;<a href="showinfo.aspx?id=<%#DataBinder.Eval(Container.DataItem,"ypbh") %>&name=<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" target="_blank" title="<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" style=" width:100%; height:25px;">
                              <%#Functions.GetShortTitle(DataBinder.Eval(Container.DataItem, "ypmc"), 42) %></a></td>
                                        </tr>
                                        <tr><td align="left" class="body">&nbsp;&nbsp;市场价：￥<%#Functions.GetShortTitle(DataBinder.Eval(Container.DataItem, "dj"), 42) %></td>
                                        </tr>
                                        <tr><td align="left" class="body">&nbsp;&nbsp;网上价：￥<%#Functions.GetShortTitle(DataBinder.Eval(Container.DataItem, "jj"), 42) %></td>
                                        </tr>
                                        <tr><td align="center">
                                            <a href="showinfo.aspx?id=<%#DataBinder.Eval(Container.DataItem,"ypbh") %>&name=<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" target="_blank" title="<%#DataBinder.Eval(Container.DataItem,"ypmc") %>" style=" width:100%; height:25px;">
                                            <asp:Image ID="Image1" runat="server" ImageUrl="~/shop_pro/images/button_view.gif" /></a>&nbsp;&nbsp;asp:ImageButton ID="ibtnbag" runat="server" ImageUrl="~/shop_pro/images/button_bag.gif" OnClick="ibtnbag_Click" /></td>
                                        </tr>
                                        </table>
                                            </td>
                                        </tr>
                                        </table>
                                        
                                        </ItemTemplate>
                                    </asp:DataList>

Answer 1

for (int i = 0; i < DataList1.Items.Count; i++)
{
            TextBox tb = (TextBox)DataList1.Items[i].FindControl("txt");
            Response.Write(tb.Text);
}