DataList取某个单元格的值没取到,该如何解决

DataList取某个单元格的值没取到
点击某个单元格里的按钮，然后显示的是最后一个单元格的值，这个是怎么回事？

HTML code

<asp:DataList ID="DataList1" runat="server" RepeatColumns="6" RepeatDirection="Horizontal">            <ItemTemplate>                <table border="0" cellpadding="5" bgcolor="#0010a4" align="center" cellspacing="1">                    <tr>                        <td id="td2" runat="server" width="80" align="center" bgcolor="#6699ff">                            <asp:Label ID="lbltel" Width="150px" runat="server" Text='<%# Bind("telno") %>'></asp:Label>                        </td>                    </tr>                    <tr>                        <td width="80" align="center" bgcolor="white">                            <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Button" />                        </td>                    </tr>                </table>            </ItemTemplate>        </asp:DataList> 

C# code

string str;    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            dbcom_src = db.GetSqlStringCommand("select telnoID,telno from M_TELNO where telnotrue=0");            db.ExecuteNonQuery(dbcom_src);            DataList1.DataSource = db.ExecuteDataSet(dbcom_src).Tables[0];            DataList1.DataBind();        }    }    protected void Button2_Click(object sender, EventArgs e)    {        for (int i = 0; i < DataList1.Items.Count; i++)        {            str = ((Label)DataList1.Items[i].FindControl("lbltel")).Text;        }        Response.Write(str);           }

[解决办法]
refer:
http://www.cnblogs.com/insus/articles/2044053.html

or:
http://www.cnblogs.com/insus/articles/2036884.html
[解决办法]
前台：
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Button" CommandArgument="<%# Bind("telno") %>" />

后台： 
protected void Button2_Click(object sender, EventArgs e)
{
Button btn=(Button)sender;
str=btn.CommandArgument.value;
}


[解决办法]
或者换一个事件

HTML code

<div>        <asp:Button ID="Button1" runat="server" Text="Button" CommandArgument="<%#Bind('telno') %>"            CommandName="" OnCommand="Button1_Command" />    </div> 

 

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