public UidCollection Search()

Public Function Search As UidCollection

using System;
using MailBee;
using MailBee.ImapMail;

class Sample
{
    static void Main(string[] args)
    {
        Imap imp = new Imap();

        imp.Connect("mail.host.com");

        imp.Login("jdoe@host.com", "secret");

        // Select Inbox folder.
        imp.SelectFolder("INBOX");

        // Enumerate UIDs into uids variable.
        UidCollection uids = imp.Search();

        // Print UID list as a message set (this message set can then be
        // supplied as messageIndexSet argument of Imap object methods).
        Console.WriteLine("uids as message set (i.e. message sequence):");
        Console.WriteLine(uids.ToString());

        // Print each UID value individually.
        Console.WriteLine();
        Console.WriteLine("uids as a list of UIDs:");
        foreach (long uid in uids)
        {
            Console.WriteLine(uid);
        }

        // Disconnect from the server.
        imp.Disconnect();
    }
}

Imports System
Imports MailBee
Imports MailBee.ImapMail

Module Sample
    Sub Main()
        Dim imp As New Imap

        imp.Connect("imap4.company.com")
        imp.Login("jdoe@company.com", "secret")

        ' Select Inbox folder.
        imp.SelectFolder("INBOX")

        ' Enumerate UIDs into uids variable.
        Dim uids As UidCollection = imp.Search()

        ' Print UID list as a message set (this message set can then be
        ' supplied as messageIndexSet argument of Imap object methods).
        Console.WriteLine("uids as message set (i.e. message sequence):")
        Console.WriteLine(uids.ToString())

        ' Print each UID value individually.
        Console.WriteLine()
        Console.WriteLine("uids as a list of UIDs:")
        For Each uid As Long In uids
            Console.WriteLine(uid)
        Next

        ' Disconnect from the server.
        imp.Disconnect()
    End Sub
End Module