ComponentPro UltimateMail

      DownloadMessageHeadersCompleted Event

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      Occurs when an asynchronous DownloadMessageHeadersAsync operation completes.

      Syntax

      public event ExtendedAsyncCompletedEventHandler<TResult> DownloadMessageHeadersCompleted

      Examples

      Shows how to connect to a POP3 server and download headers of a message asynchronously.

      using System;
      using System.IO;
      using ComponentPro.Net.Mail;
      
      ...
      
      // Create a new instance of the Pop3 class.
      Pop3 client = new Pop3();
      
      // Connect to the server.
      client.Connect("myserver");
      
      // Or you can specify the POP3 port with 
      // client.Connect("myserver", 110); 
       
      // Login to the server.
      client.Authenticate("user", "password");
      
      // ...
      
      MemoryStream stream = new MemoryStream();
      // Download a mail message's headers with sequence number 1 to the specified stream. 
      await client.DownloadMessageHeadersAsync(1, stream, stream);
      
      // ... 
       
      // Load the message for reading.
      MailMessage msg = new MailMessage(stream);
      
      Console.WriteLine("Message downloaded successfully.");
      
      foreach (Header h in msg.Headers)
      {
          Console.WriteLine("Header Name: {0}, Value: {1}", h.Name, h.Raw);
      }
      
      stream.Close();
      
      // Disconnect.
      client.Disconnect();

      Shows how to connect to a POP3 server and download headers of a message asynchronously.

      using System;
      using System.ComponentModel;
      using System.IO;
      using ComponentPro;
      using ComponentPro.Net.Mail;
      
      ...
      
      public void DoDownloadMessageHeadersAsync()
      {
          // Create a new instance of the Pop3 class. 
          Pop3 client = new Pop3();
      
          // Connect to the server. 
          client.Connect("myserver");
      
          // Or you can specify the POP3 port with 
          // client.Connect("myserver", 110); 
       
          // Login to the server. 
          client.Authenticate("user", "password");
      
          // ... 
       
          // Register an event handler. 
          client.DownloadMessageHeadersCompleted += client_DownloadMessageHeadersCompleted;
      
          MemoryStream stream = new MemoryStream();
          // Download a mail message's headers with sequence number 1 to the specified stream. 
          client.DownloadMessageHeadersAsync(1, stream, stream);
      
          // ... 
       
          // Disconnect. 
          client.Disconnect();
      }
      
      void client_DownloadMessageHeadersCompleted(object sender, ExtendedAsyncCompletedEventArgs<long> e)
      {
          // Pop3 client = (Pop3)sender; 
          if (e.Error != null)
              Console.WriteLine("Error: " + e.Error.ToString());
          else 
          {
              Stream stream = (Stream) e.UserState;
              // Load the message for reading. 
              MailMessage msg = new MailMessage(stream);
      
              Console.WriteLine("Message downloaded successfully.");
              
              foreach (Header h in msg.Headers)
              {
                  Console.WriteLine("Header Name: {0}, Value: {1}", h.Name, h.Raw);
              }
      
              stream.Close();
          }
      }

      Framework

      .NET Compact Framework.NET Compact Framework

      Supported version: 2.0, 3.5, and 3.9
      Assembly: ComponentPro.Mail.CF (in ComponentPro.Mail.CF.dll)

      .NET Framework.NET Framework

      Supported version: 2.0, 3.0, 3.5, 4.0, 4.5.x, 4.6.x and later
      Assembly: ComponentPro.Mail (in ComponentPro.Mail.dll)

      Xamarin AndroidXamarin Android

      Supported version: 2.3 and later
      Assembly: ComponentPro.Mail.Android (in ComponentPro.Mail.Android.dll)

      Xamarin MacXamarin Mac

      Supported version: 2.0.x and later
      Assembly: ComponentPro.Mail.Mac (in ComponentPro.Mail.Mac.dll)

      Xamarin iOSXamarin iOS

      Supported version: 5.1.x and later
      Assembly: ComponentPro.Mail.iOS (in ComponentPro.Mail.iOS.dll)

      See Also