MVC將多個參數傳遞給控制器，包括模型列表

我試圖從模型和從我的視圖到我的控制器的字符串傳遞一個列表。我從Home控制器到Dashboard.cshtml的數據成功，但是當我嘗試從模型傳遞一個列表到DetailController時，列表不會經過，但字符串TicketGroupName會。任何想法我做錯了什麼？MVC將多個參數傳遞給控制器，包括模型列表

Dashboard.cshtml

@model testlogin.Models.DashboardViewModel 

@{ 
    ViewBag.Title = "Index"; 
    Layout = "~/Views/Shared/_Layout.cshtml"; 
} 

<h2>@Model.AreaName</h2> 

<table id="dashboardContainer" class="table"> 
    <tr class="data-row-1"> 
     <td class="tile text-center"> 
      <a href="http://company.html"><img style="height: 125px" id="Image1" src="https://logo.jpg" /></a> 
     </td> 
     <td class="tile btn text-center"> 
      <a href="@Url.Action("ShowTickets", "Detail", new { TicketList = Model.OpenNow, TicketGroupName = "Open Now" })"> 
       <div> 
        <div class="row tile-head"> 
         <h4>Open Now</h4> 
        </div> 
        <div class="row"> 
         <h1><strong>@Model.OpenNow.Count</strong></h1> 
        </div> 
       </div> 
      </a> 
     </td> 
    </tr> 
</table>

HomeController.cs

public class HomeController : Controller 
{ 
    public ActionResult Index() 
    { 
     return View(); 
    } 

    public ActionResult Dashboard(string AreaName) 
    { 
     full_area_name = "Test Area"; 
     var dash = GetDashData(board_number); //Not including it here, but this method works 
     dash.AreaName = full_area_name; 

     return View(viewName: "Dashboard", model: dash); 
    } 
}

DashboardViewModel.cs

public class DashboardViewModel 
{ 
    public List<TicketModel> OpenNow { get; set; } 
}

DetailController.cs

public class DetailController : Controller 
{ 
    public ActionResult ShowTickets(List<TicketModel> TicketList, string TicketGroupName) 
    { 
     TicketViewModel vm = new TicketViewModel() 
     { 
      GroupName = TicketGroupName, 
      Tickets = TicketList 
     }; 
     return View(vm); 
    } 
}

個

TicketViewModel.cs

public class TicketViewModel 
{ 
    public string GroupName { get; set; } 
    public IEnumerable<TicketModel> Tickets { get; set; } 
}

ShowTickets.cshtml

@model testlogin.Models.TicketViewModel 

@{ 
    Layout = "~/Views/Shared/_Layout.cshtml"; 
} 

<div class="container"> 
    <div> 
     <h1>@Model.GroupName</h1> 
    </div> 
    <table class="table table-striped table-bordered table-hover"> 
     <tr> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().TicketNbr)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Company_Name)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Priority_Description)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Summary)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Last_Update)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().OwnerOrCloser)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Date_Entered_UTC)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Date_Responded_UTC)</th> 
      <th>@Html.LabelFor(model => model.Tickets.FirstOrDefault().Date_Closed_UTC)</th> 
     </tr> 
     @Html.DisplayFor(x => x.Tickets) 
    </table> 
</div>

來源

2017-09-15 Doc Hoss

您不應該通過GET操作單擊鏈接傳遞列表。你應該再次在ShowTickets行爲方法中得到它。 – Shyju

您不能使用'Url.Action（）'將一個集合傳遞給GET方法（查看您生成的html）。您將需要傳遞集合中每個項目的每個屬性作爲查詢字符串參數，這將是瘋狂的，並且可能超過查詢字符串限制）。在方法中再次獲取集合。 –

我明白了。我會嘗試併發布結果。謝謝你的幫助，你們倆！ –

至於建議的@Shyju和@Stephen_Muecke，我重新安排在控制器我的代碼時認爲，從HTTP緩存再次獲取數據稱爲行動。

只是爲了清楚，以防其他人正在搜索此答案，您不能將列表（或IEnumerable）對象從視圖傳遞給控制器。列表數據必須在控制器中重新收集。

感謝您的幫助，夥計們！

來源

2017-09-19 17:39:24

MVC將多個參數傳遞給控制器​​，包括模型列表

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MVC將多個參數傳遞給控制器，包括模型列表