How can I send inline image in email when having a string as image?

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I can send the image by email saved in my web application Images folder , but my question is i have image in database as string format how can i send it by email?

For Image in folder sending i am using below code:

LinkedResource logo = new LinkedResource(System.AppDomain.CurrentDomain.BaseDirectory + @"Images/logo.jpg");
logo.ContentId = "logo";
AlternateView av1 = AlternateView.CreateAlternateViewFromString("" + htmlTemplate, null, MediaTypeNames.Text.Html);

av1.LinkedResources.Add(logo);
message.AlternateViews.Add(av1);

How to Send if i have image in string format?

What I have tried:

i have tried to replace the <img src=[abc]> like,

htmlTemplate=htmlTemplate.Replace("[abc]", @"data:image/gif;base64," + software.SoftwareImage);  // does not worked

also tried

LinkedResource(@"data:image/gif;base64," + software.SoftwareImag);

//does not worked

Posted 9-Oct-17 23:58pm

shaprpuff

Updated 10-Oct-17 4:33am

v2

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Comments

Jochen Arndt 10-Oct-17 6:17am

It looks like your image is already base64 encoded. Then just get it as string from the database into a local variable.

Then you have to create a multipart mail where you can add the image as one of the parts specifying base64 encoding and a content ID. This content ID must be used as <img src=cid:[the_id]>.

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Richard Deeming · Accepted Answer · 2017-10-10T04:33:00

Assuming your image is a Gif stored as a Base64 string:

C#

byte[] imageBytes = Convert.FromBase64String(software.SoftwareImag);
Stream contentStream = new MemoryStream(imageBytes);
LinkedResource image = new LinkedResource(contentStream, MediaTypeNames.Image.Gif);
image.ContentId = "software";

AlternateView av1 = AlternateView.CreateAlternateViewFromString(htmlTemplate, null, MediaTypeNames.Text.Html);
av1.LinkedResources.Add(image);
message.AlternateViews.Add(av1);

NB: Storing the image in the database as a Base64-encoded string wastes a lot of space. You should either be storing it using a binary type, or storing the image in the file system, and just storing the path in the database.