在运行时生成 HTML 文件并作为电子邮件附件发送

发布于 2025-01-03 05:27:56 字数 235 浏览 0 评论 0 原文

我有一个项目要求，我们需要将 HTML 格式的日志表附加到发送给用户的电子邮件中。 我不希望日志表成为正文的一部分。我不想使用 HTMLTextWriter 或 StringBuilder，因为日志表非常复杂。

是否有另一种我没有提到的方法或可以使这变得更容易的工具？

注意：我已经使用 MailDefinition 类并创建了一个模板，但我还没有找到一种方法将其作为附件（如果可能的话）。

原文

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

萧瑟寒风 2025-01-10 05:27:56

由于您使用的是 WebForms，我建议渲染您的日志表在控件中作为字符串，然后将其附加到 MailMessage。

渲染部分看起来有点像这样：

public static string GetRenderedHtml(this Control control)
{
    StringBuilder sbHtml = new StringBuilder();
    using (StringWriter stringWriter = new StringWriter(sbHtml))
    using (HtmlTextWriter textWriter = new HtmlTextWriter(stringWriter))
    {
        control.RenderControl(textWriter);
    }
    return sbHtml.ToString();
}

如果您有可编辑控件（TextBox、DropDownList 等），则需要在调用之前将它们替换为标签或文字GetRenderedHtml()。请参阅这篇博文是一个完整的例子。

这是MSDN 附件示例：

// Specify the file to be attached and sent.
// This example assumes that a file named Data.xls exists in the
// current working directory.
string file = "data.xls";
// Create a message and set up the recipients.
MailMessage message = new MailMessage(
   "[email protected]",
   "[email protected]",
   "Quarterly data report.",
   "See the attached spreadsheet.");

// Create  the file attachment for this e-mail message.
Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
// Add time stamp information for the file.
ContentDisposition disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
// Add the file attachment to this e-mail message.
message.Attachments.Add(data);

Since you're using WebForms, I would recommend rendering your log sheet in a Control as a string, and then attaching that to a MailMessage.

The rendering part would look a bit like this:

public static string GetRenderedHtml(this Control control)
{
    StringBuilder sbHtml = new StringBuilder();
    using (StringWriter stringWriter = new StringWriter(sbHtml))
    using (HtmlTextWriter textWriter = new HtmlTextWriter(stringWriter))
    {
        control.RenderControl(textWriter);
    }
    return sbHtml.ToString();
}

If you have editable controls (TextBox, DropDownList, etc), you'll need to replace them with Labels or Literals before calling GetRenderedHtml(). See this blog post for a complete example.

Here's the MSDN example for attachments:

// Specify the file to be attached and sent.
// This example assumes that a file named Data.xls exists in the
// current working directory.
string file = "data.xls";
// Create a message and set up the recipients.
MailMessage message = new MailMessage(
   "[email protected]",
   "[email protected]",
   "Quarterly data report.",
   "See the attached spreadsheet.");

// Create  the file attachment for this e-mail message.
Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
// Add time stamp information for the file.
ContentDisposition disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
// Add the file attachment to this e-mail message.
message.Attachments.Add(data);