序列包含MVC

任何元素，我不知道爲什麼我會得到序列不包含任何元素還挺新的MVC序列包含MVC

我的控制器

[HttpPost] 
      public ActionResult DeleteAnnounce(string announce) 
      { 
       using (var db = new HarmonyMainServerDbContext()) 
       { 
        ANNOUNCEMENT annoude = db.Announcer.First(c => c.AnnounceTitle == announce); 
        db.Announcer.Remove(annoude); 
        db.SaveChanges(); 
       } 
       return RedirectToAction("ViewAnnounce"); 
      }

我查看即時

<div id="clientDetailsContainer"> 
    @using (Html.BeginForm("Announcements", "Admin", FormMethod.Post, new { id = "Announcers" })) 
    { 
     @Html.AntiForgeryToken() 
     @Html.ValidationSummary(true) 

      <div class="module-controls" style="display:block;"> 
       <a href="/Admin/ViewAnnounce" class="k-button module-action"><img src="../Images/src/back.png"/><span>Back to List</span></a> 
       <a class="k-button module-action" id="submitSave" title="haha"><img src="../Images/src/subgrid_save.png"/><span>Save</span></a> 
       <a class="k-button module-action" id="submitDelete" ><img src="../Images/src/subgrid_save.png"/><span>Delete</span></a> 
      </div> 

     <h2>Announcement</h2> 
     @Html.HiddenFor(model => model.AnnounceID) 
     <div class="client-details" style="margin-left: 50px"> 




      <p> 
       <label class="label-ant">Announcement Title</label> 
       @Html.TextBoxFor(model => model.AnnounceTitle, new {@class="k-textbox", @style="width:250px" }) 
       @Html.ValidationMessageFor(model => model.AnnounceTitle) 
      </p> 

      <p> 
       <label class="label-ant">Announcement Remarks</label> 
       @Html.TextBoxFor(model => model.AnnounceRemarks, new {@class="k-textbox", @style="width:250px" }) 
       @Html.ValidationMessageFor(model => model.AnnounceRemarks) 
      </p> 

      <p> 
       <label class="label-ant">Announce Link</label> 
       @Html.TextBoxFor(model => model.AnnounceLink, new {@class="k-textbox", @style="width:250px" }) 
       @Html.ValidationMessageFor(model => model.AnnounceLink) 
      </p> 

     </div> 
    } 
    <script> 
     $("#submitSave").click(function() { 
      $("#Announcers").submit(); 
     }); 
     $("#submitDelete").click(function() { 
      $("#Announcers").attr({ 
       "action" : "/Admin/DeleteAnnounce", 
      }); 
     }); 
    </script> 

</div>

來源

2016-02-19 TowelMonitor

因爲你的參數'announce'是一個或非項目'null'（查看從來帖子返回任何值） –