Attachment not attached in Outlook mail system in C# UWP

Jay 140 Reputation points
2024-10-02T13:02:10.9666667+00:00

Hi, I am trying to attach a file in the Outlook mail system using C# UWP, but it's not working. It works fine in the old Mail app. Could you please help?

Code:

EmailMessage emailMessage = new EmailMessage(); 
StorageFile attachmentFile = await storageFolder.GetFileAsync("TXT_Files\\Purchase Status.txt");
 if (attachmentFile != null)
 {
     var stream = Windows.Storage.Streams.RandomAccessStreamReference.CreateFromFile(attachmentFile);
     var attachment = new Windows.ApplicationModel.Email.EmailAttachment(attachmentFile.Name, stream);
     emailMessage.Attachments.Add(attachment);
 }
await EmailManager.ShowComposeNewEmailAsync(emailMessage);
Universal Windows Platform (UWP)
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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Accepted answer
  1. Viorel 118K Reputation points
    2024-10-02T16:47:38.3966667+00:00

    It seems that the attachments “... will appear only in the Mail app. If users have any other mail program configured as their default mail program, the compose window will appear without the attachment. This is a known issue”:

    To work around the momentary known issue, maybe you can insert the Purchase Status to the body of email.

    1 person found this answer helpful.

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