public ContentResult Content() { var content = new ContentResult(); content.Content = "<html><body bgcolor=\"red\"><p>This is my HTML content</body></html>"; content.ContentType = "text/html"; return content; } public ContentResult ContentXml() { var content = new ContentResult(); content.Content = "<books><book>one</book><book>two</book></books>"; content.ContentType = "text/xml"; return content; }