代码改变世界

分享3段平时很实用的微代码,高手莫喷

2012-04-28 17:13  随风浪迹天涯  阅读(1066)  评论(0编辑  收藏  举报

一。发送电子邮件

用的dll是微软自带的,觉得挺好用的!!

 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.COM
            client.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;
        }
    }

页面调用:

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。");

需要注意一下的是:

stmpServerIpAddress:是收邮件的服务器地址,比如我用网易的,那么就是 smtp.163.com  等等
userId:你发电子邮件的用户名
psw:你发电子邮件的密码
from:发送人姓名
distEmailAddress:收件人列表,可以有多个,用逗号分隔开来。。都很好理解!~。

二。下载word文档

这个很常用吧,这是我刚刚在给一个实习生改毕业论文的时候,遇到的,所以就记下来了!~以飨园友们哦!~。

 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();

首先需要说明的是,在gridview控件中放一个button 按钮,如下:

<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>

 然后,就可以了啦!~

三。DIV的绝对居中

很多时候,我们需要在浏览器中让一个div居中进行显示,而不会受到滚动条的影响,那怎么才能得到效果?其实,很简单,你需要理解下面这段就可以了。

最前端开人郁闷的就是浏览器的兼容性问题,所以在下面的代码中通过各浏览器的特有属性,来进行判断浏览器的类型。

比如说,self.pageYOffset 如果它为true的话,那么它说明在IE9中起作用,也说明了这个属性在IE9中是独一无二的。

直接看代码:

<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>

HTML Code:

<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()'>

这就能得到在各个浏览器中绝对居中了。当然还有其他的方法,比如说 用css,也OK。

特殊情况:

如果,你不需要居中肿么办呢?很简单啊,你需要改的仅仅是下面这句话:

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

比如说,你现在把当前的div放到top 100px,left 100px,就需要下面操作:

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


好了,就先说这么这三个把!。祝大家 五一快乐哦!!~~