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            C++ Programmer's Cookbook

            {C++ 基礎} {C++ 高級} {C#界面,C++核心算法} {設計模式} {C#基礎}

            Sending Email in .NET

            Author: James Foster Date Posted: 09/05/2001 .NET Version: 1.0.3705
            If you've had to send email with regular ASP, you've probably used CDONTS. In .NET, this functionality has been rolled into the Framework, and is part of the System.Web.Mail namespace. Using the classes in this namespace, you can easily construct and send email, with attachments if you wish, using the SMTP service built into Windows.
            System.Web.Mail Namespace
            The System.Web.Mail namespace is composed of three classes and three enumerations.

            Classes:

            MailAttachmentRepresents the attachments of an email.
            MailMessageRepresents the email itself.
            SmtpMailResponsible for sending MailMessages via SMTP.

            Enumerations:

            MailEncodingSpecifies the Encoding of the message: Base64 or UUEncode
            MailFormatSpecifies the Format of the message: Html or Text
            MailPrioritySpecifies the Priority of the message: High, Medium, or Low.
            Constructing the MailMessage
            The MailMessage object represents an email. You start by instantiating a MailMessage object, and then set the properties with the details of the email. The following properties are the ones you are most likely to use in your application:

            Attachmentsthe list of attachments (represented by MailAttachment objects) that are transmitted with the email
            Bcca semicolon-delimited list of email addresses that receive a Blind Carbon Copy (BCC) copy of the email message
            Bodythe body of the email
            BodyFormatspecifies the MailFormat of the email
            Cca semicolon-delimited list of email addresses that receive a Carbon Copy (CC) of the email message
            Fromthe email address of the sender
            Priorityspecifies the MailPriority of the email
            Subjectthe subject of the email
            Tothe email address of the recipient
            UrlContentBasethe URL base of all relative URL's used in an Html Body
            UrlContentLocationSpecifies the Priority of the message: High, Medium, or Low.
            Sending with SmtpMail
            Once you have constructed your MailMessage object, you use another object, SmtpMail, to actually send it. The most important method on the SmtpMail object is a static method, Send. This method has two variants. One allows you to send a MailMessage object:
            SmtpMail.Send(myEmailObject);
            Another variant allows you to specify the sender, recipient, subject and the body of an email, and have it sent right away.
            SmtpMail.Send(strFrom, strTo, strSubject, strBody);
            Example
            Now let's look at an example that pulls this all together. We'll start by creating a MailMessage object, setting a few properties, and finally sending the email with the SmtpMail object.

            <%@ Page Language="C#"%>

            <scriptlanguage="C#"runat="server">

            void Page_Load()
            {
            ????// CREATE A MAIL MESSAGE
            ????System.Web.Mail.MailMessage myEmail=new System.Web.Mail.MailMessage();

            ????// SET MESSAGE PARAMETERS
            ????myEmail.From ="agent@mypersonalshoppers.com";
            ????myEmail.To ="john@johnsmith.com";
            ????myEmail.Subject ="Product Availability Notice";
            ????myEmail.BodyFormat = System.Web.Mail.MailFormat.Html;
            ????myEmail.Body ="The sunglasses you expressed interest in are now in stock.";

            ????//SEND THE MESSAGE
            ????System.Web.Mail.SmtpMail.Send(myEmail);

            ????//UPDATE STATUS
            ????lblMailStatus.Text ="Mail successfully sent.";
            }

            </script>

            <html>
            <body>

            <asp:Label id="lblMailStatus"runat="server"/>

            </body>
            </html>

            posted on 2006-04-14 12:43 夢在天涯 閱讀(443) 評論(0)  編輯 收藏 引用 所屬分類: C#/.NET

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