Dart

Add a String Attachment with a Specified Charset

Demonstrates the Chilkat Email.AddStringAttachment2 method, which adds a text attachment directly from an in-memory string and encodes it using a specified charset. The first argument is the attachment filename placed in the MIME (it is not a path to an existing file), the second is the text content, and the third is the charset used to encode the string. This example attaches a UTF-8 encoded text file.

Background: This is the charset-aware version of AddStringAttachment. Because text must be converted to bytes before it travels in a MIME part, the charset determines how non-ASCII characters (accents, non-Latin scripts) are represented. utf-8 is the safe modern default that can encode any character; the third argument may also begin with bom- or no-bom- to control whether a byte-order mark is written.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the AddStringAttachment2 method, which adds a text attachment from an
  // in-memory string and encodes it using a specified charset.  The first argument is the
  // attachment filename (not a path to read), the second is the content, the third is the charset.

  final email = CkEmail();
  email.subject = 'Email with a charset-encoded string attachment';
  email.body = 'See the attached text file.';

  // Add a string attachment named "notes.txt", encoding the content as utf-8.
  email.addStringAttachment2('notes.txt', 'Some notes with accented text.', 'utf-8');

  print('NumAttachments = ${email.numAttachments}');
}