C# HtmlHelper.Action方法代码示例

        public static string RenderSitecorePlaceHolder(string key)
        {
            var sublayoutId = GetSublayoutIdFromPlaceHolder(Sitecore.Context.Item[Sitecore.FieldIDs.LayoutField], key);
            if (!string.IsNullOrEmpty(sublayoutId))
            {
                var layoutItem = Sitecore.Context.Database.GetItem(ID.Parse(sublayoutId));
                var controllerName = layoutItem.Fields["Controller"].Value;
                var actionName = layoutItem.Fields["Action"].Value;

                HttpContext.Current.RewritePath(string.Concat("/", controllerName, "/", actionName));

                RouteData routeData = RouteTable.Routes.GetRouteData(new HttpContextWrapper(HttpContext.Current));
                if (routeData != null)
                {
                    var factory = new ControllerFactory();
                    var httpContextBase = new HttpContextWrapper(HttpContext.Current);
                    var context = new RequestContext(httpContextBase, routeData);
                    Type type = factory.GetController(context, controllerName);

                    if (type != null)
                    {
                        var controller = (Controller)factory.GetController(context, type);

                        var controllerContext = new ControllerContext(httpContextBase, routeData, controller);
                        var viewContext = new ViewContext(controllerContext, new FakeView(), controller.ViewData, controller.TempData, TextWriter.Null);

                        var helper = new HtmlHelper(viewContext, new ViewPage());

                        return helper.Action(actionName, controllerName).ToHtmlString();
                    }
                }
                HttpContext.Current.RewritePath("default.aspx");
            }
            return "";
        }

 /// <summary>
 /// Render an entity (Component Presentation)
 /// </summary>
 /// <param name="item">The Component Presentation object</param>
 /// <param name="helper">The HTML Helper</param>
 /// <param name="containerSize">The size of the containing element (in grid units)</param>
 /// <param name="excludedItems">A list of view names, if the Component Presentation maps to one of these, it is skipped.</param>
 /// <returns>The rendered content</returns>
 public override MvcHtmlString RenderEntity(object item, HtmlHelper helper, int containerSize = 0, List<string> excludedItems = null)
 {
     var cp = item as IComponentPresentation;
     var mvcData = ContentResolver.ResolveMvcData(cp);
     if (cp != null && (excludedItems == null || !excludedItems.Contains(mvcData.ViewName)))
     {
         var parameters = new RouteValueDictionary();
         int parentContainerSize = helper.ViewBag.ContainerSize;
         if (parentContainerSize == 0)
         {
             parentContainerSize = SiteConfiguration.MediaHelper.GridSize;
         }
         if (containerSize == 0)
         {
             containerSize = SiteConfiguration.MediaHelper.GridSize;
         }
         parameters["containerSize"] = (containerSize * parentContainerSize) / SiteConfiguration.MediaHelper.GridSize;
         parameters["entity"] = cp;
         parameters["area"] = mvcData.ControllerAreaName;
         foreach (var key in mvcData.RouteValues.Keys)
         {
             parameters[key] = mvcData.RouteValues[key];
         }
         MvcHtmlString result = helper.Action(mvcData.ActionName, mvcData.ControllerName, parameters);
         if (WebRequestContext.IsPreview)
         {
             result = new MvcHtmlString(TridionMarkup.ParseEntity(result.ToString()));
         }
         return result;
     }
     return null;
 }

        private static string InvokeAction(ControllerBase controller, string actionName, string controllerName, RouteValueDictionary routeValues)
        {
            var viewContext = new ViewContext(controller.ControllerContext, new WebFormView(controller.ControllerContext, "tmp"),
                                              controller.ViewData, controller.TempData, TextWriter.Null);

            var htmlHelper = new HtmlHelper(viewContext, new ViewPage());

            return htmlHelper.Action(actionName, controllerName, routeValues).ToString();
        }

        private void RenderAction(IParrotWriter writer, IDictionary<string, object> documentHost, string action, string controllerName, string area, params string[] additional)
        {
            RouteValueDictionary routeValues = new RouteValueDictionary();
            routeValues["action"] = action;
            if (!string.IsNullOrWhiteSpace(controllerName))
            {
                routeValues["controller"] = controllerName;
            }
            if (!string.IsNullOrWhiteSpace(area))
            {
                routeValues["area"] = area;
            }

            var viewContext = documentHost["ViewContext"] as ViewContext;
            IViewDataContainer container = new ViewPage();
            var helper = new HtmlHelper(viewContext, container);
            writer.Write(helper.Action(action, routeValues).ToHtmlString());
        }

        /// <summary>
        /// Render an Region
        /// </summary>
        /// <param name="item">The Region object</param>
        /// <param name="helper">The HTML Helper</param>
        /// <param name="containerSize">The size of the containing element (in grid units)</param>
        /// <param name="excludedItems">A list of view names, if the Region maps to one of these, it is skipped.</param>
        /// <returns>The rendered content</returns>
        public override MvcHtmlString RenderRegion(IRegion region, HtmlHelper helper, int containerSize = 0, List<string> excludedItems = null)
        {
            var mvcData = ContentResolver.ResolveMvcData(region);
            if (region != null && (excludedItems == null || !excludedItems.Contains(region.Name)))
            {
                if (containerSize == 0)
                {
                    containerSize = SiteConfiguration.MediaHelper.GridSize;
                }
                MvcHtmlString result = helper.Action(mvcData.ActionName, mvcData.ControllerName, new { Region = region, containerSize = containerSize, area = mvcData.ControllerAreaName });

                if (WebRequestContext.IsPreview)
                {
                    result = new MvcHtmlString(TridionMarkup.ParseRegion(result.ToString()));
                }
                return result;
            }
            return null;
        }

        private static MvcHtmlString RenderComponentPresentation(IComponentPresentation cp, HtmlHelper htmlHelper)
        {
            string controller = _configuration.ComponentPresentationController;
            string action = _configuration.ComponentPresentationAction;


            if (cp.ComponentTemplate.MetadataFields != null && cp.ComponentTemplate.MetadataFields.ContainsKey("controller"))
            {
                controller = cp.ComponentTemplate.MetadataFields["controller"].Value;
            }
            if (cp.ComponentTemplate.MetadataFields != null && cp.ComponentTemplate.MetadataFields.ContainsKey("action"))
            {
                action = cp.ComponentTemplate.MetadataFields["action"].Value;
            }

            _loggerService.Debug("about to render component presentation with controller {0} and action {1}", LoggingCategory.Performance, controller, action);
            //return ChildActionExtensions.Action(htmlHelper, action, controller, new { componentPresentation = ((ComponentPresentation)cp) });
            MvcHtmlString result = htmlHelper.Action(action, controller, new { componentPresentation = ((ComponentPresentation)cp) });
            _loggerService.Debug("finished rendering component presentation with controller {0} and action {1}", LoggingCategory.Performance, controller, action);
            return result;
        }

        private static MvcHtmlString RenderComponentPresentation(IComponentPresentation cp, HtmlHelper htmlHelper)
        {
            string controller = _configuration.ComponentPresentationController;
            if (cp.ComponentTemplate.MetadataFields != null && cp.ComponentTemplate.MetadataFields.ContainsKey("controller"))
            {
                controller = cp.ComponentTemplate.MetadataFields["controller"].Value;
            }
            if (string.IsNullOrEmpty(controller))
            {
                throw new InvalidOperationException("Controller was not configured in component template metadata or in application settings. "
                    + "Unable to Render component presentation.");
            }

            string action = _configuration.ComponentPresentationAction;
            if (cp.ComponentTemplate.MetadataFields != null && cp.ComponentTemplate.MetadataFields.ContainsKey("action"))
            {
                action = cp.ComponentTemplate.MetadataFields["action"].Value;
            }
            if (string.IsNullOrEmpty(action))
            {
                throw new InvalidOperationException("Action was not configured in component template metadata or in application settings. "
                    + "Unable to Render component presentation.");
            }

            _loggerService.Debug("about to render component presentation with controller {0} and action {1}", LoggingCategory.Performance, controller, action);
            //return ChildActionExtensions.Action(htmlHelper, action, controller, new { componentPresentation = ((ComponentPresentation)cp) });
            MvcHtmlString result = htmlHelper.Action(action, controller, new { componentPresentation = ((ComponentPresentation)cp) });
            _loggerService.Debug("finished rendering component presentation with controller {0} and action {1}", LoggingCategory.Performance, controller, action);
            return result;
        }

public static System.Web.WebPages.HelperResult Block(ExerciseBlock block, BlockRenderContext context, HtmlHelper Html)
{
return new System.Web.WebPages.HelperResult(__razor_helper_writer => {


 

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t<div class=\"exercise\">\r\n");


  		
			ExerciseBlockData data = context.GetBlockData(block) ?? new ExerciseBlockData(context.Course.Id, context.Slide as ExerciseSlide) { IsGuest = context.IsGuest, IsLti = context.IsLti };
			var manualCheckingId = context.ManualChecking != null ? (int?)context.ManualChecking.Id : null;

			if (Html != null)
			{
				
WebViewPage.WriteTo(@__razor_helper_writer, Html.Action("Submission", "Exercise", new { courseId = context.Course.Id, slideId = context.Slide.Id, submissionId = context.VersionId, manualCheckingId = manualCheckingId, isLti = data.IsLti, instructorView = manualCheckingId != null }));

                                                                                                                                                                                                                                                  
			}
			else
			{

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t\t\t\t<div class=\"exercise__submission\">\r\n\t\t\t\t\t<textarea class=\"code code-exercise " +
"hidden\" data-lang=\"");


                 WebViewPage.WriteTo(@__razor_helper_writer, block.LangId);

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\">");


                                 WebViewPage.WriteTo(@__razor_helper_writer, block.ExerciseInitialCode.EnsureEnoughLines(4));

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "</textarea>\r\n\t\t\t\t\t<div class=\"loading-spinner\">\r\n\t\t\t\t\t\t<img src=\"/Content/loading" +
".gif\" />\r\n\t\t\t\t\t</div>\r\n\t\t\t\t\t");


WebViewPage.WriteTo(@__razor_helper_writer, ExerciseControls(new ExerciseControlsModel(context.Course.Id, (ExerciseSlide)context.Slide)
				   {
					   IsCodeEditableAndSendable = true,
					   DebugView = data.DebugView,
					   RunSolutionUrl = data.RunSolutionUrl,
				   }));

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\r\n\r\n\t\t\t\t\t");


WebViewPage.WriteTo(@__razor_helper_writer, RunErrors());

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\r\n\t\t\t</div>\r\n");


			}
		

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t\t\r\n\r\n");


 		if (data.DebugView)
		{

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t\t\t<div>\r\n\t\t\t\t<h3>Подсказки</h3>\r\n\t\t\t\t<ol>\r\n");


 					foreach (var hint in data.Block.HintsMd)
					{

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t\t\t\t\t\t<li>\r\n\t\t\t\t\t\t\t");


WebViewPage.WriteTo(@__razor_helper_writer, MvcHtmlString.Create(hint.RenderMd(context.BaseUrl)));

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\r\n\t\t\t\t\t\t</li>\r\n");


					}

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\t\t\t\t</ol>\r\n\t\t\t\t<h3>Комментарий после решения</h3>\r\n\t\t\t\t<p>");


WebViewPage.WriteTo(@__razor_helper_writer, data.Block.CommentAfterExerciseIsSolved);

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "</p>\r\n\t\t\t</div>\r\n");


		}

WebViewPage.WriteLiteralTo(@__razor_helper_writer, "\r\n");


 		if (context.ManualChecking != null)
		{
			var checking = (ManualExerciseChecking)context.ManualChecking;

			
WebViewPage.WriteTo(@__razor_helper_writer, Html.Partial("~/Views/Exercise/_ExerciseScoreForm.cshtml", new ExerciseScoreFormModel(context.Course.Id, (ExerciseSlide) context.Slide, checking, context.GroupId, context.VersionId == null || checking.Submission.Id == context.VersionId)));

                                                                                                                                                                                                                                                 
//.........这里部分代码省略.........

        private static MvcHtmlString GetCommentsList(HtmlHelper helper, IDataItem item, string title)
        {
            if (SystemManager.GetModule("Comments") == null || item == null)
            {
                return MvcHtmlString.Empty;
            }

            var itemTypeFullName = item.GetType().FullName;
            var itemProviderName = item.GetProviderName();

            var itemThreadKey = ControlUtilities.GetLocalizedKey(item.Id, null, CommentsBehaviorUtilities.GetLocalizedKeySuffix(itemTypeFullName));
            var itemGroupKey = ControlUtilities.GetUniqueProviderKey(GetDataSourceName(item), itemProviderName);

            var routeDictionary = new System.Web.Routing.RouteValueDictionary()
            {
                { "AllowComments", GetAllowComments(item) },
                { "ThreadKey", itemThreadKey },
                { "ThreadTitle", title },
                { "ThreadType", itemTypeFullName },
                { "GroupKey", itemGroupKey },
                { "DataSource", itemProviderName }
            };

            var controllerName = itemThreadKey.EndsWith(ReviewsSuffix, StringComparison.Ordinal) ? CommentsHelpers.ReviewsControllerName : CommentsHelpers.CommentsControllerName;

            MvcHtmlString result;
            try
            {
                result = helper.Action(CommentsHelpers.IndexActionName, controllerName, routeDictionary);
            }
            catch (HttpException)
            {
                result = MvcHtmlString.Empty;
            }
            catch (NullReferenceException)
            {
                //// Telerik.Sitefinity.Mvc.SitefinityMvcRoute GetOrderedParameters() on line 116 controllerType.GetMethods() throws null reference exception (controllerType is null).
                result = MvcHtmlString.Empty;
            }

            return result;
        }

            public void RenderTemplate(ContentItem item, HtmlHelper helper, TextWriter writer = null)
            {
                RouteValueDictionary values = GetRouteValues(helper, item);

                if (values == null)
                    return;

                var currentPath = helper.ViewContext.RouteData.CurrentPath();
                try
                {
                    var newPath = currentPath.Clone(currentPath.CurrentPage, item);
                    helper.ViewContext.RouteData.ApplyCurrentPath(newPath);
					if (writer == null)
						helper.RenderAction("Index", values);
					else
						writer.Write(helper.Action("Index", values));
                }
                finally
                {
                    helper.ViewContext.RouteData.ApplyCurrentPath(currentPath);
                }
            }