MVC DropdownListFor當html @ helper遇到JQuery提交時，@size指定

Question

我有這個奇怪的問題與MVC的html助手，當我指定@size for @ Html.DropdownListFor時，它阻止jquery .submit與服務器通信。任何想法可能會導致這種情況？有沒有其他方法可以使下拉高？下面的代碼：

  @using (Ajax.BeginForm("CreateInProgress", "Audit", new AjaxOptions {  
HttpMethod = "POST", OnSuccess = "CreateInProgressSuccess" }, new { id = "CreateInProgressMainForm"})) 
      { 
       <div id="reqTabContentBox" class="formPageContainer"> 
        @Html.HiddenFor(x => x.ConfigDoc.CreateApproveButton.ConfigurableLabelDesc) 
        @Html.HiddenFor(x => x.ConfigDoc.CreateDisapproveButton.ConfigurableLabelDesc) 
        @Html.HiddenFor(x => x.ConfigDoc.CreateSaveButton.ConfigurableLabelDesc) 
        @Html.HiddenFor(x => x.ConfigDoc.CreateAdvanceButton.ConfigurableLabelDesc) 

        @Html.Partial("_CreateAudit") 
       </div> 
         @Html.DropDownListFor(x => x.AuditDoc.AuditTemplateId, new SelectList(Model.AuditDoc.AuditTemplates, "Id", "Name"), new { size = "6", @class = "left" }) 
       <div id="finalButtons" class="formPageContainer"> 
       <input id="AdvanceDirection" name="AuditDoc.AdvanceDirection" type="hidden" value="Forward" /> 

        <span class="field-validation-error" id="CreateFormValidation"></span> 
        <span class="field-validation-success" id="CreateSaveSuccess"></span> 
        @if(Model.AuditDoc.CurrentStates.StateName == "Active") 
        { 
        <div class="btnContainer"> 
         <input type="button" id="SaveCreateInProgress" class="toggleAllSelectors" value="@Model.ConfigDoc.CreateSaveButton.ConfigurableLabelDesc" /> 
         <input type="button" id="AdvanceCreateInProgress" class="toggleAllSelectors" value="@Model.ConfigDoc.CreateAdvanceButton.ConfigurableLabelDesc" /> 
        </div> 
        } 
        else 
        { 
        <label>@Model.ConfigDoc.AllEnterPrivateCommentLabel.ConfigurableLabelDesc</label> @Html.TextAreaFor(x => x.AuditDoc.PrivateComment, 0, 0, false) 

        <div class="btnContainer"> 
         <input type="button" id="DisapproveCreateInProgress" class="toggleAllSelectors" value="@Model.ConfigDoc.CreateDisapproveButton.ConfigurableLabelDesc" @Model.OwnerApprovalAttribute /> 
         <input type="button" id="ApproveCreateInProgress" class="toggleAllSelectors" value="@Model.ConfigDoc.CreateApproveButton.ConfigurableLabelDesc" @Model.OwnerApprovalAttribute /> 
        </div> 
        } 
       </div> 
      } 

，這裏是jQuery的提交：

$("#CreateAuditMainForm").submit(); 

下面是在HTML dropdownlistfor助手生成的代碼：

<select class="left valid" data-val="true" data-val-number="The field AuditTemplateId must be a number." data-val-required="The AuditTemplateId field is required." id="AuditDoc_AuditTemplateId" name="AuditDoc.AuditTemplateId" size="6" style="display: block; "> ... </select> 

我會很感激任何幫助或詞智慧！