更新文本區與複選框

Question

值我有一個像這樣

@Html.Partial("_validationSummary") 
<div class="row-fluid"> 
    <div class ="span8 well"> 
     @using (Html.BeginForm("Send", "Message", FormMethod.Post)) { 
    <fieldset> 
    <legend>Send SMS Message</legend> 
     <div class="editor-label text-info"> 
     <small>Recipients phone numbers here.</small> 
    </div> 
    <div class="editor-field"> 
     @Html.TextAreaFor(model => model.MessageRecipients, new { @class = "span8", rows=3 }) 

    </div> 

     <div class="editor-label text-info"> 
     <small>Select from your contact listings =>.</small> 
    </div> 
    <div class="editor-field"> 
     @Html.TextAreaFor(model => model.ContactRecipients, new { @class = "span8", rows=3, @readonly=true }) 
    </div> 

    <div class="editor-label text-info"> 
     <small> Your Message Here:</small> 
    </div> 
    <div class="editor-field"> 
     @Html.TextAreaFor(model => model.Message, new { @class = "span8", rows = 5}) 

     <br /> 
     <span class="text-warning" id="char_count"></span><br /> 
    </div> 

    <div class="editor-label text-info"><small> 
     Send Message As:</small> 
    </div> 
    <div class="editor-field"> 
     @Html.TextBoxFor(model => model.MessageSentAS) 

    </div> 
    <br /> 

    <p> <input type="submit" class="btn btn-primary btn-medium" Value="Send" name="Action" /> 
     <button role="button" class="btn btn-medium" data-target="#timeModal" data-toggle="modal">Send Later</button> 
    </p> 
</fieldset> 
     } 
    </div> 

<div id="ContactList" class="span4 well" > 
    <span class="label label-important">Select From Contact List</span> 
    <hr /> 
    @* @Html.Partial("_ContactsForMessageViewPartial", Model)*@ 
     @Html.Action("RenderContacts"); 

    <hr /> 
    <div class="control-group"> 
     [@Html.ActionLink("Send Bulk SMS", "Send", "BulkMessaging")] &nbsp;[@Html.ActionLink("Add Contact", "AddContact", "Contact")] 
    </div> 


</div> 

美景，並從兒童行動填充數據的局部視圖

@model IEnumerable<TwiiterSample.Models.ViewModels.SMSContactView> 

@if (Model != null && Model.Count() > 0) 
{ 
foreach(var item in Model){ 
    <div class="checkbox multiple"> 

     @Html.CheckBox(item.ContactDetails, new {@class="check",  @value=@item.ContactDetails, id=@item.ContactDetails}) 
      @Html.Label(item.Name) 
    @*<input type="checkbox" id="@item.Value" value="@item.Value" @(item.Selected ?  "checked" : "") />@item.Text</label>*@ 
    </div> 
} 
} 

現在的局部視圖生成根據需要填入IDS和VALUES複選框列表。但是，如果點擊文本區域，我想追加複選框的值。我使用以下JQUERY片段來實現這一點

$('#ContactList .check').change(function() 
    { 
     if ($(this).is(':checked')) 
      $('#MessageRecipients').val($(this).val); 

    }); 

但是，只要我點擊一個複選框，沒有任何反應。我在做什麼錯

Answer 1

更換

$('#MessageRecipients').val($(this).val); 

與

$('#MessageRecipients').val($(this).val());