<asp:DataList ID="dlSearch" runat="server" Width="613px" Field="TrainerId" OnItemCommand="dlSearch_ItemCommand" OnSelectedIndexChanged="dlSearch_SelectedIndexChanged1" Font-Names="Verdana" Font-Size="10pt">
<HeaderTemplate>
<table>
<tr>
<td>
<asp:Label ID="Label2" runat="server" Text="Name"></asp:Label>
</td>
<td>
<asp:Label ID="Label5" runat="server" Text="Contact"</asp:Label>
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table>
<tr>
<td>
<asp:LinkButton ID="lnkName" runat="server" CommandName="TName" Text='<%# DataBinder.Eval(Container.DataItem,"Name") %>'></asp:LinkButton>
</td>
<td>
<%# DataBinder.Eval(Container.DataItem,"Mobile") %>
</td>
</tr>
<tr>
<td>
<asp:Label ID="TraId" runat="server" Visible="false" Text=' <%# DataBinder.Eval(Container.DataItem,"TId") %>'></asp:Label>
</td>
</tr>
</table>
<hr />
</ItemTemplate>
</asp:DataList><br />

protected void dlSearch_ItemCommand(object source, DataListCommandEventArgs e)
    {
        if (e.CommandName == "TrainerName")
        {
            Label lnk1 = (Label)e.Item.FindControl("TraId");
            string key =lnk1.Text;
            Response.Redirect("Default.aspx?id="+ key);
           
        }
    }