How to add images from resources folder as attachment and embed into outlook mail body in C#

Question

I have a couple of images stored in visual studio project Resources folder, and I have to load them and display on the outlook mail body. Here it is the code:

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Answer 1

Maybe you can try this.

string htmlBody = "
Picture

";
 AlternateView avHtml = AlternateView.CreateAlternateViewFromString
    (htmlBody, null, MediaTypeNames.Text.Html);

var fileName = Guid.NewGuid.ToString();
var path = Path.Combine(
    Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)),
    fileName);
File.WriteAllBytes(path, Properties.Resources.Pic);

 LinkedResource inline = new LinkedResource(path, MediaTypeNames.Image.Jpeg); //Jpeg or something
 inline.ContentId = Guid.NewGuid().ToString();
 avHtml.LinkedResources.Add(inline);

 MailMessage mail = new MailMessage();
 mail.AlternateViews.Add(avHtml);

 Attachment att = new Attachment(filePath);
 att.ContentDisposition.Inline = true;

 mail.From = from_email;
 mail.To.Add(data.email);
 mail.Subject = "Here is your subject;
 mail.Body = String.Format(
            "Here is the previous HTML Body" +
            @"", inline.ContentId);

 mail.IsBodyHtml = true;
 mail.Attachments.Add(att);

1. No need to change your picture to memory stream
2. For easy use, please do your content of e-mail to be HTML
3. You can find in the code above

You can refer to this link too