Create Multipart/Alternative MIME

Create a simple multipart/alternative MIME message.

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Chilkat.Mime mime = new Chilkat.Mime();

bool success;
success = mime.UnlockComponent("Anything for 30-day trial");
if (success == false) {
    MessageBox.Show("Failed to unlock");
    return;
}

//  Make this a multipart/alternative MIME message:
mime.NewMultipartAlternative();

//  Create a plain-text part and add it to the multipart/alternative MIME.
Chilkat.Mime ptMime = new Chilkat.Mime();
ptMime.SetBodyFromPlainText("This is the plain-text body");
mime.AppendPart(ptMime);

//  Now do the same for HTML:
Chilkat.Mime htMime = new Chilkat.Mime();
htMime.SetBodyFromHtml("<html><body>This is the HTML body</body></html>");
mime.AppendPart(htMime);

//  Show the full multipart/alternative MIME text which includes both parts:
textBox1.Text += mime.GetMime() + "\r\n";

//  Need to change the boundary string?
mime.Boundary = "__NewBoundaryString__123";

//  Need to change the charset?
ptMime = mime.GetPart(0);
ptMime.Charset = "utf-8";
htMime = mime.GetPart(1);
htMime.Charset = "utf-8";

//  Need to change the encoding?
htMime.Encoding = "base64";

//  Now show the MIME again:
textBox1.Text += "---- After Changes ----" + "\r\n";
textBox1.Text += mime.GetMime() + "\r\n";

Email Component · XML Parser