protected void DataList2_ItemCommand(object source, DataListCommandEventArgs e)
    {
        if (e.CommandName == "xyz")
        {
            string picpath = Convert.ToString(e.CommandArgument);
            int len = picpath.Length;
            string picname = picpath.Substring(9, len - 9);
            DownloadFile(picname, true);
        }
        if (e.CommandName == "id1")
        {
            int pic_id = Convert.ToInt32(e.CommandArgument);
            db.m_id = pic_id;
            db.pic_details_delete();
            dlist_bind();           
        }
        repter_bind();
    }