ASP.NET MVC 5のモデルエラー

Question

現在、テーブルの特定の行に対して更新を実行しようとしています。たとえば、あるページですべてのデータを取り出してWebGridに表示します。

WebGridには、Updateと呼ばれるbuttonの列を追加しました。ユーザーはUpdateボタンをクリックし、別のページにリダイレクトされて詳細を更新します。

ただし、私はUpdateをクリックするたびにこのエラーに直面しています。

辞書に渡さモデル項目タイプ 「System.Collections.Generic.List`1 [ACIFYPJ.Models.Response]」であるが、これ 辞書はタイプ「ACIFYPJ.Modelsのモデル項目が必要。応答'。

これは私のコードです。

私のコントローラのコードWebGrid

@model ACIFYPJ.Models.Response 

@{ 
    ViewBag.Title = "Send your Response"; 
} 

<h2>Feedback Form</h2> 

@using (Html.BeginForm("ResponseFeedBack", "Course", FormMethod.Post, new { @class = "form-horizontal", role = "form" })) 
{ 
    @Html.AntiForgeryToken() 

    <div class="form-horizontal"> 
     <h4></h4> 
     <hr /> 
     <div class="form-group"> 
      @Html.LabelFor(model => model.responseID, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.responseID, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.responseID, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.message, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.TextAreaFor(model => model.message, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.message, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.status, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.status, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.status, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.answer, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.TextAreaFor(model => model.answer, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.answer, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      <div class="col-md-offset-2 col-md-10"> 
       <input type="submit" value="Create" class="btn btn-default" /> 
      </div> 
     </div> 
    </div> 
} 

<div> 
    @Html.ActionLink("Back to Home", "Index") 
</div> 

にUpdateボタンをクリックした後

@model List<ACIFYPJ.Models.Response> 

@{ 
    ViewBag.Title = "List Of Responses"; 
    Layout = "~/Views/Shared/_Layout.cshtml"; 
    var grid = new WebGrid(Model, canPage: true, rowsPerPage: 5); 
    grid.Pager(WebGridPagerModes.All); 
} 

<h2 style="margin-bottom: 3%; margin-top: 3%;">List Of Responses</h2> 

<script src="~/Scripts/jquery-1.10.2.min.js"></script> 

<script> 
    $(document).ready(function() { 
     $("#responseFeedBack").click(function() { 

      var tr = $(this).parents('tr:first'); 
      var responseID = tr.find("#responseID").text(); 
      alert(responseID); 
      var ResponseModel = { 
       "responseID": responseID 
      }; 

      $.ajax({ 

       url: '@Url.Action("ResponseFeedBack", "Course")', 
       type: 'POST', 
       data: { 
        "responseID": responseID 
       }, 
       async: false, 
       dataType: 'text', 
       success: function (data) { 

       } 
      }); 
     }); 
    }); 

</script> 

<div id="content"> 
    @grid.GetHtml(
    fillEmptyRows: false, 
    tableStyle: "webgrid-table", 
    headerStyle: "webgrid-header", 
    footerStyle: "webgrid-footer", 
    alternatingRowStyle: "webgrid-alternating-row", 
    selectedRowStyle: "webgrid-selected-row", 
    rowStyle: "webgrid-row-style", 
    mode: WebGridPagerModes.All, 
    firstText: "<< First", 
    previousText: "<Prev", 
    nextText: "Next >", 
    lastText: "Last >>", 

    columns: grid.Columns(
     grid.Column("responseID", "Response ID", format: @<text><span class="display-mode" id="responseID">@item.responseID</span></text>), 

     grid.Column("name", "Sender's Name", format: @<text><span id="senderName" class="display-mode">@item.Name</span></text>), 

     grid.Column("message", "Message", format: @<text><span class="display-mode"><label id="lblMessage">@item.message</label></span> 
     </text>), 

     grid.Column("status", "Message Status", format: @<text><span class="display-mode"><label id="lblStatus">@item.status</label></span> 
     </text>), 

     grid.Column("answer", "Answer", format: @<text><span class="display-mode"><label id="lblAnswer">@item.answer</label></span> 
     </text>), 

     grid.Column("", format: @<text> 
      <button id="responseFeedBack">Reply</button> 
     </text>, style: "col3Width", canSort: false) 
)) 
</div> 

<div style="margin-top: 2%;"> 
    @Html.ActionLink("Back to Home", "AdminIndex", "Home") 
</div> 

ユーザーは、このページにリダイレクトされるすべての件のデータを表示するのWebGridを含むページ

public ActionResult ViewAllResponse() 
     { 
      var responses = new List<Response>(); 
      using (ACIFYPJEntities aci = new ACIFYPJEntities()) 
      { 
       responses = aci.Responses.ToList(); 
      } 
      return View(responses); 
     } 


     public ActionResult ResponseFeedBack(int responseID) 
     { 
      var responses = new List<Response>(); 

      using (ACIFYPJEntities aci = new ACIFYPJEntities()) 
      { 
       responses = (from c in aci.Responses 
          where c.responseID == responseID 
          select c).ToList(); 
      } 

      return View(responses); 
     } 

Answer 1

アクションの方法を変更する

public ActionResult ResponseFeedBack(int responseID) 
    { 
     var responses = Response(); 

     using (ACIFYPJEntities aci = new ACIFYPJEntities()) 
     { 
      responses = (from c in aci.Responses 
         where c.responseID == responseID 
         select c).First(); 
     } 

     return View(responses); 
    }