C# RouteCollection.First方法代码示例

        public void ContentRoute_IsAdded()
        {
            RouteCollection rc = new RouteCollection();
            rc.MapContentRoute("content", MockRepository.GenerateStub<IEngine>());

            Assert.That(rc.Count, Is.EqualTo(1));
            Assert.That(rc.First(), Is.InstanceOf<ContentRoute>());
        }

        public void ContentRoute_IsInsertedBefore_NonContentRoute()
        {
            RouteCollection rc = new RouteCollection();
            rc.MapRoute("mvc", "{controller}/{action}");
            rc.MapContentRoute("content", MockRepository.GenerateStub<IEngine>());

            Assert.That(rc.Count, Is.EqualTo(2));
            Assert.That(rc.First(), Is.InstanceOf<ContentRoute>());
        }

        public void GenericContentRoute_IsntPushedBackBy_ContentRoute()
        {
            RouteCollection rc = new RouteCollection();
            rc.MapContentRoute<Models.RegularPage>("area", MockRepository.GenerateStub<IEngine>());
            rc.MapContentRoute("content", MockRepository.GenerateStub<IEngine>());

            Assert.That(rc.Count, Is.EqualTo(2));
            Assert.That(rc.First(), Is.InstanceOf<ContentRoute<Models.RegularPage>>());
            Assert.That(rc.Skip(1).First(), Is.InstanceOf<ContentRoute>());
        }

        public void RegisterRoutes_IgnoresAxd()
        {
            RouteCollection routes = new RouteCollection();
            config.RegisterRoutes(routes);

            Route expected = new Route("{resource}.axd/{*pathInfo}", new StopRoutingHandler());
            Route actual = routes.First() as Route;

            Assert.Equal(expected.RouteHandler.GetType(), actual.RouteHandler.GetType());
            Assert.Equal(expected.Url, actual.Url);
        }

        public void ContentRoute_IsInsertedBetween_OtherContentRoutes_AndNonContentRoute()
        {
            RouteCollection rc = new RouteCollection();
            rc.MapRoute("mvc", "{controller}/{action}");
            rc.MapContentRoute<Models.RegularPage>("area", MockRepository.GenerateStub<IEngine>());
            rc.MapContentRoute("content", MockRepository.GenerateStub<IEngine>());

            Assert.That(rc.Count, Is.EqualTo(3));
            Assert.That(rc.First(), Is.InstanceOf<ContentRoute<Models.RegularPage>>());
            Assert.That(rc.Skip(1).First(), Is.InstanceOf<ContentRoute>());
        }

 /// <summary>
 /// 发布前。
 /// </summary>
 /// <param name="routeDescriptors">路由描述符。</param>
 public void Publishing(IEnumerable<RouteDescriptor> routeDescriptors)
 {
     var preloading = new RouteCollection();
     foreach (var routeDescriptor in routeDescriptors)
     {
         // WebApi 路由注册
         var httpRouteDescriptor = routeDescriptor as HttpRouteDescriptor;
         if (httpRouteDescriptor == null)
             continue;
         var httpRouteCollection = new RouteCollection();
         httpRouteCollection.MapHttpRoute(httpRouteDescriptor.Name, httpRouteDescriptor.RouteTemplate, httpRouteDescriptor.Defaults, httpRouteDescriptor.Constraints);
         routeDescriptor.Route = httpRouteCollection.First();
         preloading.Add(routeDescriptor.Name, routeDescriptor.Route);
     }
 }

        public void Publish(IEnumerable<RouteDescriptor> routes)
        {
            var routesArray = routes
                .OrderByDescending(r => r.Priority)
                .ToArray();

            // this is not called often, but is intended to surface problems before
            // the actual collection is modified
            var preloading = new RouteCollection();
            foreach (var routeDescriptor in routesArray) {

                // extract the WebApi route implementation
                var httpRouteDescriptor = routeDescriptor as HttpRouteDescriptor;
                if (httpRouteDescriptor != null) {
                    var httpRouteCollection = new RouteCollection();
                    httpRouteCollection.MapHttpRoute(httpRouteDescriptor.Name, httpRouteDescriptor.RouteTemplate, httpRouteDescriptor.Defaults, httpRouteDescriptor.Constraints);
                    routeDescriptor.Route = httpRouteCollection.First();
                }

                preloading.Add(routeDescriptor.Name, routeDescriptor.Route);
            }

            using (_routeCollection.GetWriteLock()) {
                // existing routes are removed while the collection is briefly inaccessable
                _routeCollection
                    .OfType<HubRoute>()
                    .ForEach(x => x.ReleaseShell(_shellSettings));

                // new routes are added
                foreach (var routeDescriptor in routesArray) {
                    // Loading session state information.
                    var defaultSessionState = SessionStateBehavior.Default;

                    ExtensionDescriptor extensionDescriptor = null;
                    if(routeDescriptor.Route is Route) {
                        object extensionId;
                        var route = routeDescriptor.Route as Route;
                        if(route.DataTokens != null && route.DataTokens.TryGetValue("area", out extensionId) ||
                           route.Defaults != null && route.Defaults.TryGetValue("area", out extensionId)) {
                            extensionDescriptor = _extensionManager.GetExtension(extensionId.ToString());
                        }
                    }
                    else if(routeDescriptor.Route is IRouteWithArea) {
                        var route = routeDescriptor.Route as IRouteWithArea;
                        extensionDescriptor = _extensionManager.GetExtension(route.Area);
                    }

                    if (extensionDescriptor != null) {
                        // if session state is not define explicitly, use the one define for the extension
                        if (routeDescriptor.SessionState == SessionStateBehavior.Default) {
                            Enum.TryParse(extensionDescriptor.SessionState, true /*ignoreCase*/, out defaultSessionState);
                        }
                    }

                    // Route-level setting overrides module-level setting (from manifest).
                    var sessionStateBehavior = routeDescriptor.SessionState == SessionStateBehavior.Default ? defaultSessionState : routeDescriptor.SessionState ;

                    var shellRoute = new ShellRoute(routeDescriptor.Route, _shellSettings, _workContextAccessor, _runningShellTable) {
                        IsHttpRoute = routeDescriptor is HttpRouteDescriptor,
                        SessionState = sessionStateBehavior
                    };

                    var area = extensionDescriptor == null ? "" : extensionDescriptor.Id;

                    var matchedHubRoute = _routeCollection.FirstOrDefault(x => {
                        var hubRoute = x as HubRoute;
                        if (hubRoute == null) {
                            return false;
                        }

                        return routeDescriptor.Priority == hubRoute.Priority && hubRoute.Area.Equals(area, StringComparison.OrdinalIgnoreCase) && hubRoute.Name == routeDescriptor.Name;
                    }) as HubRoute;

                    if (matchedHubRoute == null) {
                        matchedHubRoute = new HubRoute(routeDescriptor.Name, area, routeDescriptor.Priority, _runningShellTable);

                        int index;
                        for (index = 0; index < _routeCollection.Count; index++) {
                            var hubRoute = _routeCollection[index] as HubRoute;
                            if (hubRoute == null) {
                                continue;
                            }
                            if (hubRoute.Priority < matchedHubRoute.Priority) {
                                break;
                            }
                        }

                        _routeCollection.Insert(index, matchedHubRoute);
                    }

                    matchedHubRoute.Add(shellRoute, _shellSettings);
                }
            }
        }

        public void Publish(IEnumerable<RouteDescriptor> routes) {
            var routesArray = routes
                .OrderByDescending(r => r.Priority)
                .ToArray();

            // this is not called often, but is intended to surface problems before
            // the actual collection is modified
            var preloading = new RouteCollection();
            foreach (var routeDescriptor in routesArray) {

                // extract the WebApi route implementation
                var httpRouteDescriptor = routeDescriptor as HttpRouteDescriptor;
                if (httpRouteDescriptor != null) {
                    var httpRouteCollection = new RouteCollection();
                    httpRouteCollection.MapHttpRoute(httpRouteDescriptor.Name, httpRouteDescriptor.RouteTemplate, httpRouteDescriptor.Defaults);
                    routeDescriptor.Route = httpRouteCollection.First();
                }

                preloading.Add(routeDescriptor.Name, routeDescriptor.Route);
            }
                

            using (_routeCollection.GetWriteLock()) {
                // existing routes are removed while the collection is briefly inaccessable
                var cropArray = _routeCollection
                    .OfType<ShellRoute>()
                    .Where(sr => sr.ShellSettingsName == _shellSettings.Name)
                    .ToArray();

                foreach(var crop in cropArray) {
                    _routeCollection.Remove(crop);
                }

                // new routes are added
                foreach (var routeDescriptor in routesArray) {
                    // Loading session state information. 
                    var defaultSessionState = SessionStateBehavior.Default;

                    ExtensionDescriptor extensionDescriptor = null;
                    if(routeDescriptor.Route is Route) {
                        object extensionId;
                        var route = routeDescriptor.Route as Route;
                        if(route.DataTokens != null && route.DataTokens.TryGetValue("area", out extensionId) || 
                           route.Defaults != null && route.Defaults.TryGetValue("area", out extensionId)) {
                            extensionDescriptor = _extensionManager.GetExtension(extensionId.ToString()); 
                        }
                    }
                    else if(routeDescriptor.Route is IRouteWithArea) {
                        var route = routeDescriptor.Route as IRouteWithArea;
                        extensionDescriptor = _extensionManager.GetExtension(route.Area); 
                    }

                    if (extensionDescriptor != null) {
                        // if session state is not define explicitly, use the one define for the extension
                        if (routeDescriptor.SessionState == SessionStateBehavior.Default) {
                            Enum.TryParse(extensionDescriptor.SessionState, true /*ignoreCase*/, out defaultSessionState);
                        }
                    }

                    // Route-level setting overrides module-level setting (from manifest).
                    var sessionStateBehavior = routeDescriptor.SessionState == SessionStateBehavior.Default ? defaultSessionState : routeDescriptor.SessionState ;

                    var shellRoute = new ShellRoute(routeDescriptor.Route, _shellSettings, _workContextAccessor, _runningShellTable) {
                        IsHttpRoute = routeDescriptor is HttpRouteDescriptor,
                        SessionState = sessionStateBehavior
                    };
                    _routeCollection.Add(routeDescriptor.Name, shellRoute);
                }
            }
        }