將JavaScript類傳遞給cotroller with viewbag

Question

我有一個計算頁碼的索引方法。因此，如果用戶在頁碼（例如頁碼3）上選擇一行，然後編輯該項目並返回到索引頁面 - 頁碼仍然在數字3上被選中，這很好。但是該行也應該在索引頁面中被選中。我想這樣的：

控制器：

object selection = ModelHelper.GetSelectedModelId("SubmittedForms"); 
      if (selection != null) {    
       IEnumerable<IEnumerable<SubmittedForm>> pp = entities.Partition(pageSize); 
       int calculatedPage = 0; 
       bool found = false; 
       foreach (var item in pp) { 
        calculatedPage++; 
        IEnumerable<SubmittedForm> inner = item as IEnumerable<SubmittedForm>; 
        foreach (var submittedForms in inner) { 
         if (submittedForms.Id == (int)selection) { 
          found = true; 
          ViewBag.selectedRow = submittedForms.Id == (int)(ModelHelper.GetSelectedModelId("SubmittedForms") ?? 0) ? "sfs-selected sfs-selectable" : String.Empty; 

          break; 
         } 
        } 
        if (found) 
         break; 
       } 
       if (found) 
       pageNumber = calculatedPage; 

       //SubmittedForm submittedForm; 

      } 

的Javascript：

var $row = $("tr.sfs-selected").each(function() { 
      selectRow($(this), $(this).hasClass("sfs-selected")); 
      }); 




    }) 

和看法：

@foreach (var item in Model) { 
       <tr class="(@ViewBag.selectedRow)"> 
        <td> 
         @Html.DisplayFor(modelItem => item.Id) 
        </td> 
        <td> 
         @if (item.ProductId != null) { 
          @item.Product.Name 

          if (item.Product.IsProduction == false) { 
           <em>(@Resources.Entity.Environment.Test)</em> 
          } 

          if (testMode != item.Product.IsProduction) { 
           <a href="@Url.Action("Details", "Product", new { id = item.ProductId })"><i class="fa fa-fw fa-external-link-square text-info"></i></a> 
          } 
         } 

但該行返回指數後未選擇頁。

謝謝

完整的指數方法：

[Route("sort/{SortColumn}/{SortOrder?}", Name = "Sort-SubmittedForms")] 
     [Route("page/{Page:int}/{SortColumn}/{SortOrder?}", Name = "Paging-SubmittedForms")] 
     [Route("search/{SearchString}")] 
     [Route()] 
     public ActionResult Index(string searchString, string filter, string currentFilter, string sortColumn, string sortOrder, int? page, int? id) 
     { 
      IOrderedQueryable<SubmittedForm> entities = db.FilteredSubmittedForms; 



      if (searchString != null) page = 1; else searchString = currentFilter; 
      //if (page == null && Session["SubmittedFormpage"] != null) 
      // page = (int)Session["SubmittedFormpage"]; 

      bool isHandler = ApplicationUserManager.IsProductHandler(this.User); 

      bool hideArchivedOrders = true; 

      if (filter != null) { 
       int productId = 0; 
       string stateFilter = null; 
       if (filter.StartsWith("o_")) { // Order state 
        if (isHandler) 
         filter = null; 
        else { 
         stateFilter = filter.Substring(2); 
         OrderState oState = db.OrderStates.FirstOrDefault(s => s.Code == stateFilter); 
         if (oState == null) 
          filter = null; 
         else { 
          entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
             s => s.Order.OrderState.Code == stateFilter 
           ); 
          AddFixedNotification(String.Format(Resources.Entity.Environment.FitleredByOrderStateMessage, oState.Title)); 
          hideArchivedOrders = false; 
         } 
        } 
       } 
       else if (filter.StartsWith("s_")) { // Submitted form state 
        stateFilter = filter.Substring(2); 
        SubmittedFormStateEnum sfState; 
        if (SubmittedFormState.TryCodeToId(stateFilter, out sfState)) { 
         entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
            s => s.SubmittedFormStateId == (int) sfState 
             && s.Order.OrderState.Code == OrderState.CompletedCode 
          ); 
         AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredBySubmittedFormStateMessage, SubmittedFormState.IdToLocalizedName(sfState))); 
        } 
        else { 
         filter = null; 
        } 
       } 
       else if (int.TryParse(filter, out productId) && productId > 0) { 
        Product product = db.Products.Find(productId); 
        if (product == null) productId = 0; 
        else { 
         entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
           s => s.Product.Id == productId 
         ); 
         AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredByProductMessage, product.Name)); 
        } 
        filter = productId.ToString(); 
       } 
       else 
        filter = null; 
      } 

      if (isHandler) { 
       entities = FilterSubmittedFormsForProductHandler(entities); 
      } 
      else if (hideArchivedOrders) { 
       entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
            s => s.Order.OrderState.Code != OrderState.ArchivedCode 
          ); 
      } 

      if (!String.IsNullOrEmpty(searchString)) { 
       entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
         s => s.Product.Name.ToUpper().Contains(searchString.ToUpper()) 
       ); 
       AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredBySearchTermMessage, searchString)); 
      } 

      switch (sortColumn) { 
       case "id": 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Id) : entities.OrderBy(s => s.Id); 
        break; 
       case "product": 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Product.Name) : entities.OrderBy(s => s.Product.Name); 
        break; 
       case "modified": 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.ModificationDate) : entities.OrderBy(s => s.ModificationDate); 
        break; 
       case "attach": 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.SubmittedFormAttachments.Count) : entities.OrderBy(s => s.SubmittedFormAttachments.Count); 
        break; 
       case "orderstate": 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Order.OrderStateId) : entities.OrderBy(s => s.Order.OrderStateId); 
        break; 
       default: 
        sortColumn = "id"; 
        sortOrder = "desc"; 
        entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Id) : entities.OrderBy(s => s.Id); 
        break; 
      } 

      ViewBag.SortColumn = sortColumn; 
      ViewBag.SortOrder = sortOrder == "desc" ? "desc" : ""; 
      ViewBag.SearchString = searchString; 
      ViewBag.Filter= filter; 
      //Session["SubmittedFormpage"] = page; 



      if (isHandler) 
       ViewBag.OrderStates = new Dictionary<string, string>(); 
      else 
       ViewBag.OrderStates = db.OrderStates.ToDictionary(s => s.Code, s => s.Title); 

      bool production = !StateHelper.IsTestMode(); 
      ViewBag.ProductsInUse = db.Products.Where(p => p.SubmittedForms.Where(f => f.Order.IsProduction == production).Count() != 0) 
       .OrderBy(p => p.Name) 
       .ToDictionary(p => p.Id.ToString(), p => p.Name + " (" + p.SubmittedForms.Where(f => f.Order.IsProduction == production).Count() + ")"); 

      int pageSize = StateHelper.GetPageSize(); 
      int pageNumber = StateHelper.HasPageSizeChanged ? 1 : (page ?? 1); 

      object selection = ModelHelper.GetSelectedModelId("SubmittedForms"); 
      if (selection != null) {    
       IEnumerable<IEnumerable<SubmittedForm>> pp = entities.Partition(pageSize); 
       int calculatedPage = 0; 
       bool found = false; 
       foreach (var item in pp) { 
        calculatedPage++; 
        IEnumerable<SubmittedForm> inner = item as IEnumerable<SubmittedForm>; 
        foreach (var submittedForms in inner) { 
         if (submittedForms.Id == (int)selection) { 
          found = true; 
          ViewBag.selectedRow = submittedForms.Id == (int)(ModelHelper.GetSelectedModelId("SubmittedForms") ?? 0) ? "sfs-selected sfs-selectable" : String.Empty; 

          break; 
         } 
        } 
        if (found) 
         break; 
       } 
       if (found) 
       pageNumber = calculatedPage; 

       //SubmittedForm submittedForm; 

      } 

      //ModelHelper.GetSelectedModelId("SubmittedForms"); 
      //SubmittedForm submittedform = db.SubmittedForms.Find(id); 

      return View(entities.ToPagedList(pageNumber, pageSize)); 
     } 

而且這是兩個輔助方法：

public static object GetSelectedModelId(string ControllerName) 
     { 
      //var routeValues = HttpContext.Current.Request.RequestContext.RouteData.Values; 
      string controller = (string)HttpContext.Current.Session["controller"]; 
      object mid = null; 


      if (controller != null && controller.Equals(ControllerName, StringComparison.OrdinalIgnoreCase)) 
      mid = HttpContext.Current.Session["SelectedModelId"];    
      HttpContext.Current.Session.Remove("SelectedModelId"); 
      HttpContext.Current.Session.Remove("controller"); 

      return mid; 
     } 

     public static void SetSelectedModelId(string ControllerName, object ModelId) 
     { 
      HttpContext.Current.Session["controller"] = ControllerName; 
      HttpContext.Current.Session["SelectedModelId"] = ModelId; 
     } 

Answer 1

你在下面將包括括號類，這是意，因爲你的JavaScript不包括它？

<tr class="(@ViewBag.selectedRow)">