Dart

Set the Email Body from a BinData

Demonstrates the Chilkat Email.SetBodyBd method, which sets the main email body from the binary data in a BinData object. The second argument is the MIME Content-Type, the third is the disposition (may be empty, inline, or attachment), and the fourth is the filename. This example loads HTML content into a BinData and sets it as the body.

Background: SetBodyBd gives low-level control over the body when you already have its bytes and want to specify the exact Content-Type and MIME disposition yourself. It suits content that is generated or stored as binary — for example an EDI payload, a pre-rendered HTML fragment, or any custom content type — where the convenience of SetHtmlBody / SetTextBody does not apply.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the SetBodyBd method, which sets the main email body from the binary data in
  // a BinData object.  The second argument is the MIME Content-Type, the third is the
  // disposition (may be empty, "inline", or "attachment"), and the fourth is the filename.

  final email = CkEmail();
  email.subject = 'Body from BinData';

  // Load the body content from a file into a BinData object.
  final bd = CkBinData();
  try {
    bd.loadFile('qa_data/html/body.html');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Set the main body from the binary data as text/html.
  try {
    email.setBodyBd(bd, 'text/html', '', '');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('HasHtmlBody: ${email.hasHtmlBody()}');

  // Note: The path "qa_data/html/body.html" is a relative local filesystem path,
  // relative to the current working directory of the running application.
}