DownloadMailMessageCompleted Event

public event ExtendedAsyncCompletedEventHandler<TResult> DownloadMailMessageCompleted

Public Event DownloadMailMessageCompleted ExtendedAsyncCompletedEventHandler(Of TResult)

public:
 event ExtendedAsyncCompletedEventHandler<TResult>^ DownloadMailMessageCompleted

Connect to an IMAP server and download a message asynchronously (Task-based asynchronous approach).

using System;
using ComponentPro;
using ComponentPro.Net.Mail;

...

// Create a new instance of the Imap class.
Imap client = new Imap();

// Connect to the server.
client.Connect("myserver");

// Or you can specify the IMAP port with 
// client.Connect("myserver", 143); 
 
// Login to the server.
client.Authenticate("user", "password");

// ... 
 
// Select 'INBOX' mailbox.
client.Select("INBOX");

// Download a mail message with sequence number 1.
MailMessage msg = await client.DownloadMailMessageAsync(1);

// ...

Console.WriteLine("Message downloaded successfully.");
Console.WriteLine("Message ID: {0}, Subject: {1}", msg.MessageIdentifier, msg.Subject);

// Disconnect.
client.Disconnect();

Imports ComponentPro
Imports ComponentPro.Net.Mail

...

' Create a new instance of the Imap class. 
Dim client As New Imap()

' Connect to the server.
client.Connect("myserver")

' Or you can specify the IMAP port with 
' client.Connect("myserver", 143); 
 
' Login to the server.
client.Authenticate("user", "password")

' ... 
 
' Select 'INBOX' mailbox.
client.Select("INBOX")

' Download a mail message with sequence number 1. 
Dim msg As MailMessage = Await client.DownloadMailMessageAsync(1)

' ...

Console.WriteLine("Message downloaded successfully.")
Console.WriteLine("Message ID: {0}, Subject: {1}", msg.MessageIdentifier, msg.Subject)

' Disconnect.
client.Disconnect()

Connect to an IMAP server and download a message asynchronously (Event-based asynchronous approach).

using System;
using ComponentPro;
using ComponentPro.Net.Mail;

...

public void DoDownloadMailMessageAsync()
{
    // Create a new instance of the Imap class. 
    Imap client = new Imap();

    // Connect to the server. 
    client.Connect("myserver");

    // Or you can specify the IMAP port with 
    // client.Connect("myserver", 143); 
 
    // Login to the server. 
    client.Authenticate("user", "password");

    // ... 
 
    // Register an event handler. 
    client.DownloadMailMessageCompleted += client_DownloadMailMessageCompleted;

    // Select 'INBOX' mailbox. 
    client.Select("INBOX");

    // Download a mail message with sequence number 1. 
    client.DownloadMailMessageAsync(1);

    // ... 
 
    // Disconnect. 
    client.Disconnect();
}

void client_DownloadMailMessageCompleted(object sender, ExtendedAsyncCompletedEventArgs<MailMessage> e)
{
    if (e.Error != null)
    {
        Console.WriteLine("Error: " + e.Error.ToString());
    }
    else 
    {
        Console.WriteLine("Message downloaded successfully.");
        Console.WriteLine("Message ID: {0}, Subject: {1}", e.Result.MessageIdentifier, e.Result.Subject);
    }
}

Imports ComponentPro
Imports ComponentPro.Net.Mail

...

Public Sub DoDownloadMailMessageAsync()
    ' Create a new instance of the Imap class. 
    Dim client As New Imap()

    ' Connect to the server. 
    client.Connect("myserver")

    ' Or you can specify the IMAP port with 
    ' client.Connect("myserver", 143); 
 
    ' Login to the server. 
    client.Authenticate("user", "password")

    ' ... 
 
    ' Register an event handler. 
    AddHandler client.DownloadMailMessageCompleted, AddressOf client_DownloadMailMessageCompleted

    ' Select 'INBOX' mailbox. 
    client.Select("INBOX")

    ' Download a mail message with sequence number 1. 
    client.DownloadMailMessageAsync(1)

    ' ... 
 
    ' Disconnect. 
    client.Disconnect()
End Sub 
 
Private Sub client_DownloadMailMessageCompleted(ByVal sender As Object, ByVal e As ExtendedAsyncCompletedEventArgs(Of MailMessage))
    If e.Error IsNot Nothing Then 
        Console.WriteLine("Error: " & e.Error.ToString())
    Else 
        Console.WriteLine("Message downloaded successfully.")
        Console.WriteLine("Message ID: {0}, Subject: {1}", e.Result.MessageIdentifier, e.Result.Subject)
    End If 
End Sub

Reference