将我的电脑上的图像保存为HTML以嵌入到电子邮件中？ [英] Save image on my computer as HTML to embed in email?

问题描述

我试图将我电脑上的图片转换为HTML格式，并将其嵌入到电子邮件中：

这是我迄今为止所尝试的：

  chart1.SaveImage（C：\\ My Chart \\mychart.png，ChartImageFormat.Png） ; 
 
 
 OutlookApp outlookApp = new OutlookApp（）; 
 MailItem mailItem = outlookApp.CreateItem（OlItemType.olMailItem）; 
 
 mailItem.Subject =这是主题; 
 var bytes = File.ReadAllBytes（C：\\ My Chart \\mychart.png）; 
 var b64String = Convert.ToBase64String（bytes）; 
 var dataUrl =data：image / png; base64，+ b64String; 
 mailItem.HTMLBody = dataUrl; 
 
 
 //将消息设置为高优先级
 mailItem.Importance = OlImportance.olImportanceHigh; 
 mailItem.To =[e-mail]; 
 mailItem.Display（false）; 
  

这不起作用，它显示为实际电子邮件中的一堆代码

解决方案

构建适当的HTML 以HTML格式发送主体，请尝试构建一个< img> 标签并将它的 src 设置为您的Base 64编码的图像数据：

  //将您的电子邮件正文设置为包含Base64编码图像的图像
 mailItem.HTMLBody = String.Format（< img src ='{0}'/>，dataUrl）; 
  

这会建立您的< img> 标记如预期，但是如果出现或不出现将是一个支持问题。

检查浏览器和客户端支持

值得注意的是，

I'm trying to convert an image I have on my computer to HTML and embed it into an email:

This is what I've tried so far:

chart1.SaveImage("C:\\My Chart\\mychart.png", ChartImageFormat.Png);


OutlookApp outlookApp = new OutlookApp();
MailItem mailItem = outlookApp.CreateItem(OlItemType.olMailItem);

mailItem.Subject = "This is the subject";
var bytes = File.ReadAllBytes("C:\\My Chart\\mychart.png");
var b64String = Convert.ToBase64String(bytes);
var dataUrl = "data:image/png;base64," + b64String;
mailItem.HTMLBody = dataUrl ;


//Set a high priority to the message
mailItem.Importance = OlImportance.olImportanceHigh;
mailItem.To = "[e-mail]";
mailItem.Display(false);

This doesn't work, it shows up as a bunch of code in the actual email

解决方案

Building Proper HTML

Since you appear to be sending the body as HTML, try building an <img> tag and setting the src of it to your Base 64 encoded image data :

// Set the body of your email to an image that contains your Base64-encoded image
mailItem.HTMLBody = String.Format("<img src='{0}' />",dataUrl);

This should build your <img> tag as expected, however if will appear or not will be a matter of support.

Checking Browser and Client Support

It's worth noting that while most major browsers will support Base64 URLs, many have issues and limitations. Additionally, some e-mail clients may not support them either as seen below :

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