Asp.Net MVC 5 Html.DropDownList未验证

时间:2016-04-23 03:23:58

标签: c# asp.net-mvc drop-down-menu mvc-editor-templates html-validation

我一直坚持这个问题一段时间,似乎无法在网上找到任何有用的东西。

我在编辑器模板中有一个Html.DropDownList。我在表单中使用该模板,并且不为下拉列表选择任何内容。当我点击提交时,我希望表单通知我所需的下拉列表没有选择值,但事实并非如此。我究竟做错了什么?

以下是视图模型:

public class RequestCreateViewModel
{
    public int ID { get; set; }

    public TesterLocationCreateViewModel TesterLocationCreateViewModel { get; set; }

    ....

    public RequestCreateViewModel()
    {

    }
}

public class TesterLocationCreateViewModel
{
    public int ID { get; set; }

    [Required]
    [UIHint("OEM")]
    public string OEM { get; set; }

    [Required]
    [DisplayName("City")]
    public string LocationCity { get; set; }


    public TesterLocationCreateViewModel()
    {

    }
}

这是Create.cshtml的片段

 @model WdcTesterManager.Models.Request

 @{
     ViewBag.Title = "Create Request";
     Layout = "~/Views/Shared/_Layout.cshtml";
 }

 <h2>Create Request</h2>

 @using (Html.BeginForm())
 {
       @Html.AntiForgeryToken()
       <div class="form-horizontal">
          @Html.ValidationSummary(true, "", new { @class = "text-danger" })
          <div class="form-group">
              @Html.EditorFor(model => model.TesterLocationCreateViewModel)
          </div>
       </div>
 }

这是TesterLocationCreateViewModel.cshtml(编辑模板):

@model WdcTesterManager.Models.TesterLocationCreateViewModel

    <div class="col-md-6">
        <h4>Tester Location</h4>
        <div class="container-fluid">
            <div class="form-group">
                @Html.LabelFor(model => model.OEM, htmlAttributes: new { @class = "control-label col-md-4" })
                <div class="col-md-8">
                     @Html.DropDownList("OEM", (SelectList)ViewBag.OemList, "Choose one", new { @class = "form-control" })
                    @Html.ValidationMessageFor(model => model.OEM, "", new { @class = "text-danger" })
                </div>
            </div>               
            <div class="form-group">
                @Html.LabelFor(model => model.LocationCity, htmlAttributes: new { @class = "control-label col-md-4" })
                <div class="col-md-8">
                    @Html.EditorFor(model => model.LocationCity, new { htmlAttributes = new { @class = "form-control" } })
                    @Html.ValidationMessageFor(model => model.LocationCity, "", new { @class = "text-danger" })
                </div>
            </div>               
        </div>
    </div>

当我提交表格而没有填写任何内容时,我得到了城市的验证错误,但没有给OEM。有什么想法吗?

enter image description here

1 个答案:

答案 0 :(得分:1)

@StephenMuecke指出代码出现了问题,因为代码似乎引用了Request模型而不是Request View模型。

所以,我再看了一下代码,发现Create.cshtml使用的是Request模型而不是RequestCreateViewModel。

在更改Create.cshtml以使用RequestCreateViewModel后,我收到了正确的验证错误:

@model WdcTesterManager.Models.RequestCreateViewModel