AlternateView Class

Note: This class is new in the .NET Framework version 2.0.

Represents the format to view an email message.

Namespace: System.Net.Mail
Assembly: System (in system.dll)

public class AlternateView : AttachmentBase
public class AlternateView extends AttachmentBase
public class AlternateView extends AttachmentBase

Use the AlternateView class to specify copies of an e-mail message in different formats. For example, if you send a message in HTML, you might also want provide a plain text version in case some of the recipients use e-mail readers that cannot display HTML content.

This class has two properties LinkedResources and BaseUri that are used to resolve URLs within the content of the email. LinkedResources is a collection of LinkedResource objects. When rendered, URLs within the e-mail's content are first matched against the URLs in the ContentLink of each LinkedResource object in the LinkedResources collection, and resolved. BaseUri is used by the mail reader to resolve relative URLs within the body, and also to resolve relative ContentLink URLs, in the LinkedResources collection.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0