Multiple submit buttons with ASP.NET MVC

Several solutions exist to handling multiple buttons on a form, see:

• http://stackoverflow.com/questions/442704/how-do-you-handle-multiple-submit-buttons-in-asp-net-mvc-framework
• http://weblogs.asp.net/dfindley/archive/2009/05/31/asp-net-mvc-multiple-buttons-in-the-same-form.aspx
• http://blog.ashmind.com/2010/03/15/multiple-submit-buttons-with-asp-net-mvc-final-solution/
• http://blog.maartenballiauw.be/post/2009/11/26/Supporting-multiple-submit-buttons-on-an-ASPNET-MVC-view.aspx