public class SimpleEmailHelper{private string _SmtpAdd;private string _UserID;private string _UserPsw;public SimpleEmailHelper(string smtpAddress, string userID, string userPsw){_SmtpAdd = smtpAddress;_UserID = userID;_UserPsw = userPsw;}public bool Send(string from, string to, string subject, string message,string cc){return Send(from, from, to, to, subject, message,cc);}public bool Send(string from, string fromDisplay, string sendTo, string sendToDisplay,string subject, string message,string cc){bool ret = true;SmtpClient client = new SmtpClient();client.Host = _SmtpAdd;//邮件服务器 比如 网易的是 smtp.163.COMclient.Port = 25;//端口号，也可不写client.DeliveryMethod = SmtpDeliveryMethod.Network;//发送方式client.Credentials = new NetworkCredential(_UserID, _UserPsw);//用户名和密码MailMessage myMessage = new MailMessage();myMessage.Priority = MailPriority.Normal;//优先级myMessage.From = new MailAddress(from, fromDisplay, Encoding.GetEncoding("gb2312"));myMessage.To.Add(sendTo);if (cc != ""){myMessage.CC.Add(cc);}myMessage.Subject = subject;//邮件主题myMessage.SubjectEncoding = Encoding.GetEncoding("gb2312");myMessage.IsBodyHtml = true;myMessage.BodyEncoding = Encoding.GetEncoding("gb2312");myMessage.Body = message;//正文myMessage.Attachments.Add(new Attachment(@"C:\Users\lando\Desktop\Flex问题集结号.txt"));//加入附件。。。client.Send(myMessage);//开始发送。return ret;}}

SQ.FrameWork.SimpleEmailHelper emailHelper = new SQ.FrameWork.SimpleEmailHelper(stmpServerIpAddress, userId, psw);
emailHelper.Send(from, distEmailAddress, TextBoxTopic.Text.Trim(),TextBoxContent.Text.Trim(),txtCCCleint.Text);
ShowMessage("邮件发送成功。");

 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e){string courseName = ((Label)GridView1.Rows[e.RowIndex].Cells[1].FindControl("Label1")).Text.ToString();//在GridView中文件名字string time = ((Label)GridView1.Rows[e.RowIndex].Cells[2].FindControl("Label2")).Text.ToString();//在GridView中找时间string tempPath = BusyworkManage.Path + tm.ReturnTeacherID(Request.Cookies["StudentID"].Value.ToString()) +BusyworkManage.TopicPath + courseName + "/" + courseName + "_" + time + ".doc";//这样做是为了不使下载后的文件的名字重复！~~。string path = Server.MapPath(tempPath);FileInfo fInfo = new FileInfo(path);string fname = fInfo.Name;Response.Clear();Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fname));Response.AddHeader("Content-Length", fInfo.Length.ToString());Response.ContentType = "application/octet-stream";Response.WriteFile(fInfo.FullName);Response.Flush();

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Height="139px"        Width="100%" OnRowDeleting="GridView1_RowDeleting"             onselectedindexchanged="GridView1_SelectedIndexChanged">        <Columns>　　　　　　　　。。。。。。省略代码。。。。。            <asp:BoundField DataField="成绩" HeaderText="成绩">                <ItemStyle HorizontalAlign="Center" />            </asp:BoundField>            <asp:CommandField ButtonType="Button" DeleteText="下作业载" ShowDeleteButton="True">                <ItemStyle HorizontalAlign="Center" />            </asp:CommandField>            <asp:HyperLinkField Text="提交作业" DataNavigateUrlFormatString="SubmitBusywork.aspx?course={0}&amp;time={1}" DataNavigateUrlFields="课程名称,作业次数">                <ItemStyle HorizontalAlign="Center" />            </asp:HyperLinkField>        </Columns>    </asp:GridView>

<script type='text/javascript'>function myPopupRelocate() {var scrolledX, scrolledY;if (self.pageYOffset) {//IE9 起作用scrolledX = self.pageXOffset;scrolledY = self.pageYOffset;alert("self.pageYOffset");} else if (document.documentElement && document.documentElement.scrollTop) {// IE 6 ,360浏览器等起作用scrolledX = document.documentElement.scrollLeft; scrolledY = document.documentElement.scrollTop;alert("document.documentElement && document.documentElement.scrollTop");} else if (document.body) {//Chrome... IE9 Firfox....IE 5.5起作用scrolledX = document.body.scrollLeft;scrolledY = document.body.scrollTop;alert("document.body");}//以上是浏览器滚动的距离// alert("scrolledX:" + scrolledX);// alert("scrolledY:" + scrolledY);var centerX, centerY;if (self.innerHeight) {centerX = self.innerWidth;centerY = self.innerHeight;} else if (document.documentElement && document.documentElement.clientHeight) {centerX = document.documentElement.clientWidth;centerY = document.documentElement.clientHeight;} else if (document.body) {centerX = document.body.clientWidth;centerY = document.body.clientHeight;}alert("centerX:" + centerX);alert("centerY:" + centerY);var leftOffset = scrolledX + (centerX - 250) / 2;var topOffset = scrolledY + (centerY - 200) / 2;document.getElementById("mypopup").style.top = topOffset + "px";document.getElementById("mypopup").style.left = leftOffset + "px";}function fireMyPopup() {myPopupRelocate();document.getElementById("mypopup").style.display = "block";//            document.body.onscroll = myPopupRelocate;//            window.onscroll = myPopupRelocate;
        }</script>

<div id='mypopup' name='mypopup' style='position: absolute; width: 250px; height: 200px;display: none; background: #ddd; border: 1px solid #000; z-index: 100'><p>我现在的位置是居中状态<br></p><input type='submit' value=' 关闭窗口! (2) ' onclick='document.getElementById("mypopup").style.display="none"'></div><input type='submit' value=' Fire! (2) ' onclick='fireMyPopup()'>

var leftOffset = scrolledX + (centerX - 250) / 2;
var topOffset = scrolledY + (centerY - 200) / 2;

var leftOffset = scrolledX + 100;
var topOffset = scrolledY + 100;