HttpFileCollection多文件上传的有关问题

    <asp:Panel ID="Panel1" runat="server" Width="100%">                                <uc1:UpPic ID="UpPic1" runat="server"></uc1:UpPic>                            </asp:Panelty; us

    //我页面上有两个Panel,分别用来做两部分文件的上传     //如果使用HttpFileCollection  Request.Files的方法,获取的是页面上所有上传控件的值.    //因为我是动态添加的控件    //控件的id分别是mypic1,mypic2.....myfile1,myfile2....    //小弟不才,想请教各位关于怎样只获取一个panel里面的上传控件的值?protected void AddPic_Click(object sender, EventArgs e)    {            HttpFileCollection hfc = Request.Files;            string f_Name, f_Size, f_Type, f_Extented, newFileName, f_Path;            for (int i = 0; i <= hfc.Count - 1; i++)            {                HttpPostedFile hpf = hfc[i];                if (hpf.FileName != "")                {                    f_Name = Path.GetFileName(hpf.FileName);                    Response.Write(i+"、"+f_Name+"<br>");                 }      }