Home/ Questions/Q 6318147
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-24T15:36:25+00:00

I’m writing a program that sends emails to users with multiple images (charts) embedded

  • 0

I’m writing a program that sends emails to users with multiple images (charts) embedded in the Email message body (HTML).

When I tried the sample located here..which worked well when I have to embed only one image
http://www.systemnetmail.com/faq/4.4.aspx.

But, when i tried to embed multiple images using the below code, none of the images are being embedded , instead they are sent as attachments.

public MailMessage MailMessage(Metric metric, DateTime date)
{
    MailMessage msg = new MailMessage();
    msg.From = new MailAddress("test@gmail.com", "User1");
    msg.To.Add(new MailAddress("test@gmail.com"));
    msg.Subject = "Trend for metric: " + metric.Name;
    msg.IsBodyHtml = true;

    // Generate the charts for the given metric
    var charts = this.GenerateCharts(metric, date);
    int i = 0;
    string htmlBody = "<html><body>";
    List<LinkedResource> resources = new List<LinkedResource>();
    foreach (var chart in charts)
    {
        string imageTag = string.Format("<img src=cid:chart{0} /><br>", i);
        htmlBody += imageTag;
        LinkedResource graph = new LinkedResource(chart.Value, "image/jpeg");
        graph.ContentId = "chart" + i;
        resources.Add(graph);
        i++;
    }

    htmlBody += "</body></html>";

    // Alternate view for embedded images
    AlternateView avText = AlternateView.CreateAlternateViewFromString(metric.Name, null, MediaTypeNames.Text.Html);
    AlternateView avImages = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);

    // Add all the images as linked resources
    resources.ForEach(x => avImages.LinkedResources.Add(x));

    // Add the views for image
    msg.AlternateViews.Add(avText);
    msg.AlternateViews.Add(avImages);


    return msg;
}

Any clues as what I’m missing?
I checked the .htm file which is also sent as attachment with the email, and html source looks as follows:

<html>><body><img src=cid:chart0 /><br><img src=cid:chart1 /><br><img src=cid:chart2/><br><img src=cid:chart3 /><br><img src=cid:chart4 /><br></body></html>

So the Q is how to send multiple images in the html body , not as attachment.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    So, I think figured out what the actual problem is
    Its in this line

    // Alternate view for embedded images
    AlternateView avText = AlternateView.CreateAlternateViewFromString(metric.Name, null, MediaTypeNames.Text.Html);
    AlternateView avImages = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);

    As you can see, both my views are specified as Text.Html, so the the 1st one is overriding the next one and so I only see text and images are sent as attachments

    I made the following change and it worked as expected

    AlternateView avText = AlternateView.CreateAlternateViewFromString(metric.Name, null, **MediaTypeNames.Text.Plain**);
AlternateView avImages = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
    • 0