Question

我的行动：

 public virtual async Task<ActionResult> IdeaDetails(int id)
        {

我的路线：

 routes.MapRoute("DesignIdeasDetails", "ideadetails/{id}",
              MVC.Designer.IdeaDetails().AddRouteValue("id", UrlParameter.Optional)

错误：Instance argument: cannot convert from 'System.Threading.Tasks.Task<System.Web.Mvc.ActionResult>' to 'System.Web.Mvc.ActionResult' C:\Work\luxedecorNew\Luxedecor\Luxedecor\App_Start\RouteConfig.cs 19 15 Luxedecor

错误2：System.Threading.Tasks.Task<System.Web.Mvc.ActionResult>' does not contain a definition for 'AddRouteValue' and the best extension method overload 'System.Web.Mvc.T4Extensions.AddRouteValue(System.Web.Mvc.ActionResult, string, object)' has some invalid arguments

Answer 1

由于异步如何工作而发生错误。您需要在方法中等待任务，以便获得ActionResult，如下所示：

routes.MapRoute("DesignIdeasDetails", "ideadetails/{id}",
          (await MVC.Designer.IdeaDetails()).AddRouteValue("id", UrlParameter.Optional)

// or, if the method cannot be used with async/await
 routes.MapRoute("DesignIdeasDetails", "ideadetails/{id}",
          (MVC.Designer.IdeaDetails().GetAwaiter().GetResult()).AddRouteValue("id", UrlParameter.Optional)

是否可以使用T4MVC和异步操作？

1 个答案: