public class MimePartCollection : CollectionBase

Public Class MimePartCollection
	Inherits CollectionBase

using MailBee;
using MailBee.Mime;

// The actual code (put it into a method of your class)

// Load the message from file.
MailMessage msg = new MailMessage();
msg.LoadMessage(@"C:\Docs\TestMail.eml");

// For every part...
foreach (MimePart part in msg.MimePartTree.GetAllParts())
{
    // ...show its Content-Type.
    Console.WriteLine("The type is " + part.ContentType);
}

' To use the code below, import MailBee namespaces at the top of your code.
Imports MailBee
Imports MailBee.Mime

' The actual code (put it into a method of your class)

' Load the message from file.
Dim msg As New MailMessage
msg.LoadMessage("C:\Docs\TestMail.eml")

' For every part...
For Each part As MimePart In msg.MimePartTree.GetAllParts()
    ' ...show its Content-Type.
    Console.WriteLine("The type is " & part.ContentType)
Next