public class YourCustomLayoutAttribute : ActionFilterAttribute,IResultFilter
{
      public override void OnResultExecuting(ResultExecutingContext filterContext)
      {
           var viewResult = filterContext.Result as ViewResult;
           if(viewResult != null)
           {
              // switch the layout
              // I assume Razor will follow convention and take the "MasterName" property and change the layout based on that.
              viewResult.MasterName = "CustomLayout";
           }
       }
}

我只是在我的裤子座位上编写了这个代码而没有编译器所以它可能不会编译但你可能会得到这个想法.我认为IResultFilter是您想要的正确接口,它具有在呈现视图之前执行的方法.如果这是正确的,您应该能够修改即将呈现的视图的MasterName.

这将是控制器代码使用.

[YourCustomLayout] // this should trigger your custom action result for all actions
public class MyController : Controller
{
   public ActionResult Index()
   {
      return View("Index","MainLayout"); // even if you were to use the overload to set a master,the action result should override it as it executes later in the pipeline.
   }
}