Create multipart/alternative MIME

Demonstrates how to create a multipart/alternative MIME structure using the NewMultipartAlternative method.
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bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  Start with an empty MIME object...
Chilkat.Mime mime = new Chilkat.Mime();

//  Initialize it as multipart/alternative.
mime.NewMultipartAlternative();

//  Create a text/plain part.
Chilkat.Mime ptMime = new Chilkat.Mime();
ptMime.SetBodyFromPlainText("This is the plain text body.");
Debug.WriteLine(ptMime.GetMime());
Debug.WriteLine("****");

//  The text/plain part looks like this:

//  	Content-Type: text/plain
//  	Content-Transfer-Encoding: 7bit
//  
//  	This is the plain text body.

//  Create a text/HTML part.
Chilkat.Mime htmlMime = new Chilkat.Mime();
htmlMime.SetBodyFromHtml("<html><body><p>This is the <b>HTML body</b></p></body></html>");
Debug.WriteLine(htmlMime.GetMime());
Debug.WriteLine("****");

//  The text/html part looks like this:

//  	Content-Type: text/html
//  	Content-Transfer-Encoding: 7bit
//  
//  	<html><body><p>This is the <b>HTML body</b></p></body></html>

//  Add both parts as children of the multipart/alternative
mime.AppendPart(ptMime);
mime.AppendPart(htmlMime);
Debug.WriteLine(mime.GetMime());

//  This the result.  The boundary string was automatically generaetd.

//  	Content-Type: multipart/alternative; boundary="------------080803090906030708030908"
//  
//  	--------------080803090906030708030908
//  	Content-Type: text/plain
//  	Content-Transfer-Encoding: 7bit
//  
//  	This is the plain text body.
//  	--------------080803090906030708030908
//  	Content-Type: text/html
//  	Content-Transfer-Encoding: 7bit
//  
//  	<html><body><p>This is the <b>HTML body</b></p></body></html>
//  	--------------080803090906030708030908--