逗我玩吗？ViewBag.XXX 找不到编译动态表达式所需的一种或多种类型

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 using System.Web.Mvc;
 7 using System.Web.Routing;
 8 
 9 namespace Common.MVC {
10     public class UnityControllerActivator : IControllerActivator {
11         IController IControllerActivator.Create(System.Web.Routing.RequestContext requestContext,
12             Type controllerType) {
13             return DependencyResolver.Current.GetService(controllerType) as IController;
14         }
15 
16     }
17 }

 1 using Microsoft.Practices.Unity;
 2 using System;
 3 using System.Collections.Generic;
 4 using System.Linq;
 5 using System.Text;
 6 using System.Threading.Tasks;
 7 using System.Web.Mvc;
 8 
 9 namespace Common.MVC {
10     public class UnityDependencyResolver : IDependencyResolver {
11 
12         private IUnityContainer Container;
13 
14         public UnityDependencyResolver(IUnityContainer container) {
15             if (container == null)
16                 throw new ArgumentNullException("container");
17 
18             this.Container = container;
19         }
20 
21         public object GetService(Type serviceType) {
22             if (this.Container.IsRegistered(serviceType)
23                 || typeof(IController).IsAssignableFrom(serviceType)) {
24                 var obj = this.Container.Resolve(serviceType);
25                 return obj;
26             }
27             return null;
28         }
29 
30         public IEnumerable<object> GetServices(Type serviceType) {
31             return this.Container.ResolveAll(serviceType);
32         }
33 
34     }
35 }

 1 using Microsoft.Practices.Unity;
 2 using System;
 3 using System.Collections.Generic;
 4 using System.Linq;
 5 using System.Text;
 6 using System.Web.Mvc;
 7 
 8 namespace Common.MVC {
 9     public class UnityFilterProvider : FilterAttributeFilterProvider {
10 
11         private IUnityContainer Container;
12 
13         public UnityFilterProvider(IUnityContainer container) {
14             if (container == null)
15                 throw new ArgumentNullException("container");
16             this.Container = container;
17         }
18 
19 
20         private IEnumerable<Filter> BuildUp(List<Filter> filters) {
21             filters.ForEach(f => {
22                 this.Container.BuildUp(f.Instance.GetType(), f.Instance);
23             });
24 
25             return filters;
26         }
27 
28         public override IEnumerable<Filter> GetFilters(ControllerContext controllerContext, ActionDescriptor actionDescriptor) {
29             var filters = base.GetFilters(controllerContext, actionDescriptor).ToList();
30             return this.BuildUp(filters);
31         }
32 
33         //private IEnumerable<FilterAttribute> BuildUp(List<FilterAttribute> attrs) {
34         //    attrs.ForEach(a => {
35         //        this.Container.BuildUp(a.GetType(), a);
36         //    });
37         //    return attrs;
38         //}
39 
40         //下面这两个方法的结果还是要返回到 GetFilters 内
41         //protected override IEnumerable<FilterAttribute> GetActionAttributes(ControllerContext controllerContext, ActionDescriptor actionDescriptor) {
42         //    var attrs = base.GetActionAttributes(controllerContext, actionDescriptor).ToList();
43         //    return this.BuildUp(attrs);
44         //}
45 
46         //protected override IEnumerable<FilterAttribute> GetControllerAttributes(ControllerContext controllerContext, ActionDescriptor actionDescriptor) {
47         //    var attrs = base.GetControllerAttributes(controllerContext, actionDescriptor).ToList();
48         //    return this.BuildUp(attrs);
49         //}
50 
51     }
52 }

 1 using Microsoft.Practices.Unity;
 2 using System;
 3 using System.Collections.Generic;
 4 using System.Linq;
 5 using System.Web;
 6 using System.Web.Mvc;
 7 using Microsoft.Practices.Unity.Configuration;
 8 using Common.MVC;
 9 
10 namespace UnityAndMvc4NET4Test {
11     public class UnityConfig {
12 
13         public static void Config() {
14             var container = new UnityContainer();
15             
16             container.RegisterType<IControllerActivator, UnityControllerActivator>();
17             FilterProviders.Providers.Add(new UnityFilterProvider(container));
18 
19             container.LoadConfiguration();
20 
21             DependencyResolver.SetResolver(new UnityDependencyResolver(container));
22         }
23 
24     }
25 }