ASP.NET MVC:如何使用指定的updateTargetID验证Ajax表单?

我正在尝试解决在用户提交一个Ajax表单后如何显示验证错误 UpdateTargetID 属性集。

我无法理解如何用验证错误更新Ajax表单,而不返回 Create 部分视图 results 如果表单有效,则应返回 Records 局部视图。

创建.ascx

<%  Using Ajax.BeginForm("Create", 
                         "Record", 
                         New Record With {.UserID = Model.UserID}, 
                         New AjaxOptions With {
                             .UpdateTargetId = "results", 
                             .LoadingElementId = "loader"
                         })%>        
    Date Located
    <%= Html.TextBoxFor(Function(model) model.DateLocated)%>
    <%= Html.ValidationMessageFor(Function(model) model.DateLocated) %>

    Description
    <%= Html.TextBoxFor(Function(model) model.Description)%>
    <%= Html.ValidationMessageFor(Function(model) model.Description) %>

    <input id="btnSave" type="submit" value="Create" />          

    <span id="loader" class="loader">Saving...</span>
<%End Using%>

记录.ascx

<div id="results">
    ...
</div>

记录控制器.vb

Function Create(ByVal newRecord As Record) As ActionResult
    ValidateRecord(newRecord)

    If Not ModelState.IsValid Then
        Return PartialView("Create", newRecord)
    End If

    _repository.Add(newRecord)
    _repository.Save()

    Dim user = _repository.GetUser(newRecord.UserID)
    Return PartialView("Records", user)
End Function