C#。净额4.7。2：将outlook对象嵌入为电子邮件附件

提问者：小点点

C#。净额4.7。2：将outlook对象嵌入为电子邮件附件

我创建了一个构建html字符串作为电子邮件正文的代码。然而，我希望这封电子邮件是我的一般和基础电子邮件，我在第一个地方创建的附件。下面的代码实际上是有效的，但在最后，当我打开我的普通电子邮件时，我将第二封电子邮件作为附件，但当我单击它时，附件中的电子邮件是Black电子邮件。尽管我创建了html主体，但结果仍然如此。html字符串在最后一个方法“AddMessageAsAttachment”的末尾消失。任何帮助都将不胜感激。。。非常感谢。

using Microsoft.Office.Interop.Outlook;

foreach (var positionlist in result)
{
    string salesEmailAddress = positionlist.Key;

    //Create the general email to the salesman
    Microsoft.Office.Interop.Outlook.Application application = new Microsoft.Office.Interop.Application();
    MailItem generalMail = application.CreateItem(Outlook.OlItemType.olMailItem) as MailItem;
    generalMail.Body = "Hello, Please find your quarterly reports";
    generalMail.Subject = $"Quarterly Report";
    generalMail.To = salesEmailAddress;

    foreach (DataRow row in positionlist)
    {
        MailItem mailToAdd = CreateSecondaryEmail(row, "EN", "P:/My_path/Report_EN.oft", @"P:\Another_path\SecondaryEmailAttachment.pdf");
        Globale.AddMessageAsAttachment(generalMail, mailToAdd);
    }

    private MailItem CreateSecondaryEmail(DataRow row, string lang, string template, string attachement)
    {
        string clientNumber = row["account_nbr"];
        string currency = row["Ccy"];

        html += $@"<html>
                    <div style='font-family: Haboro Contrast Ext Thin;font-size: 15,5'>
                        <p style=''></p><BR>
                        <span style=''>{clientNumber}</span><BR>
                        <span style=''> {currency}</span><BR>            
                    </div>";

        html += "</html>";
        MailItem mailPosition = Globale.CreateItemFromTemplate(html, email, template, factsheet);

        return mailPosition;
    }
}

“CreateItemFromTemplate”实际上是从一个模板链接到第二封电子邮件的正文和一份快速pdf报告（参数“attachement”），该报告将附加：

public static Outlook.MailItem CreateItemFromTemplate(string html, string emailaddress, string template, string attachement = null, string client_number = null)
    {

        Outlook.Application application = new Outlook.Application();
        Outlook.MailItem mail = application.CreateItemFromTemplate(template) as Outlook.MailItem;
        mail.HTMLBody = mail.HTMLBody.Replace("#BODY", html);
        DateTime dt = DateTime.Now;
        string date = $"Data as of  {dt.Day}.{dt.Month}.{dt.Year}";
        mail.HTMLBody = mail.HTMLBody.Replace("#DATE",date);
        mail.Subject = $"Quarterly Report of the client {client_number}";
        mail.To = emailaddress;
        if (attachement != null)
        {
            mail.Attachments.Add(attachement);
        }
        return mail;     
    }

最后，我创建了一个“Globale”类，其中包含一个方法，该方法将检索由上述“CreateItemFromTemplate”方法生成的第二封电子邮件（mailPosition），并将其作为附件放在普通电子邮件中。

public static void AddMessageAsAttachment(Outlook.MailItem mailContainer,Outlook.MailItem mailToAttach)
    {
        Outlook.Attachments attachments = null;
        Outlook.Attachment attachment = null;
        try
        {
            attachments = mailContainer.Attachments;
            attachment = attachments.Add(mailToAttach,
               Outlook.OlAttachmentType.olEmbeddeditem, 1, "The attached e-mail");
            mailContainer.Save();
        }
        catch (Exception ex)
        {
            System.Windows.Forms.MessageBox.Show(ex.Message);
        }
        finally
        {
            if (attachment != null) System.Runtime.InteropServices.Marshal.ReleaseComObject(attachment);
            if (attachments != null) System.Runtime.InteropServices.Marshal.ReleaseComObject(attachments);
        }
    }

共1个答案

匿名用户

尝试在对任何新创建的项进行任何修改后调用保存方法，然后再附加它们。

此外，无需在代码中创建新的Outlook应用程序实例。例如，我注意到您文章开头的以下代码：

//Create the general email to the salesman
    Microsoft.Office.Interop.Outlook.Application application = new Microsoft.Office.Interop.Application();
    MailItem generalMail = application.CreateItem(Outlook.OlItemType.olMailItem) as MailItem;
    generalMail.Body = "Hello, Please find your quarterly reports";

在CreateItemFromTemplate方法中，我看到：

Outlook.Application application = new Outlook.Application();
Outlook.MailItem mail = application.CreateItemFromTemplate(template) as Outlook.MailItem;
mail.HTMLBody = mail.HTMLBody.Replace("#BODY", html);

最后，我建议附加网页，而不是创建项目并附加它们。可以在Outlook中打开和查看该网页。