C# 在局部视图中创建的下拉列表在渲染时未在视图中正确验证

我正在使用MVC创建一个项目。我有一个视图，在该视图中，用户将在文本框和下拉列表中输入所有数据

这些文本框和下拉列表是在两个独立的局部视图中创建的，我在一个视图中呈现这些局部视图

我的问题是textbx是否正确验证但下拉列表即使在我选择值时也无法验证

当我只渲染一个显示文本框的局部视图时 控件转到相应的操作方法。但当我渲染部分 查看下拉列表；即使在我 在下拉列表中选择值

@model PITCRoster.ViewModel.LookUpViewModel
<script src="~/Content/CustomScripts/DatePickers.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>

@Html.LabelFor(m => m.SelectedLocation)
@Html.DropDownListFor(m => m.SelectedLocation, Model.LocationList, "-Please select-")
@Html.ValidationMessageFor(m => m.SelectedLocation)
//many other dropdownlists

我将发布我的代码

请记住，我只发布了一段代码，因为我的部分视图包含文本框和下拉列表的重复代码

抱歉，代码太长了

显示文本框的“我的局部视图”的代码

@model PITCRoster.tblUser
<script src="~/Content/CustomScripts/DatePickers.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>
    <fieldset>
        <legend>tblUser</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.FirstName)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.FirstName)
            @Html.ValidationMessageFor(model => model.FirstName)
        </div>
// many other textboxes.
      </fieldset>

要理解这门课，请参考我的问题和Stephen Muecke的解决方案

以下是我如何在LocationList中填充数据

 RosterManagementEntities rosterManagementContext = new RosterManagementEntities();
            // populate your select lists
            var locations = from o in rosterManagementContext.tblCurrentLocations select o;
            model.LocationList = new SelectList(locations, "LocationId", "Location");

下面是我对AddResource的操作方法

  [HttpPost]
        public ActionResult AddResource(LookUpViewModel modelLookUp, tblUser tblUser)
        {
            Helpers.CopyLookUpViewModelTotblUser(modelLookUp, tblUser);
            return View(modelLookUp);
        }

编辑

为DropDownListFor（）生成的HTML：

它还有

为ValidationMessageFor（）生成的HTML：

---

谢谢你。

我复制了你的代码，我的代码很好，这就是我所做的

LookUpViewModel.cs

public class LookUpViewModel {
    [Display(Name = "Location")]
    [Required(ErrorMessage = "Please select a location")]
    public int SelectedLocation { get; set; }

    public SelectList LocationList { get; set; }
}

public class tblCurrentLocations {
    public int LocationId { get; set; }
    public string Location {get;set;}
}

public class tblUser {
    [Display(Name = "First Name")]
    [Required(ErrorMessage = "First Name required")]
    public string FirstName {get; set;}
}

tblCurrentLocations.cs

public class LookUpViewModel {
    [Display(Name = "Location")]
    [Required(ErrorMessage = "Please select a location")]
    public int SelectedLocation { get; set; }

    public SelectList LocationList { get; set; }
}

public class tblCurrentLocations {
    public int LocationId { get; set; }
    public string Location {get;set;}
}

public class tblUser {
    [Display(Name = "First Name")]
    [Required(ErrorMessage = "First Name required")]
    public string FirstName {get; set;}
}

tblUser.cs

public class LookUpViewModel {
    [Display(Name = "Location")]
    [Required(ErrorMessage = "Please select a location")]
    public int SelectedLocation { get; set; }

    public SelectList LocationList { get; set; }
}

public class tblCurrentLocations {
    public int LocationId { get; set; }
    public string Location {get;set;}
}

public class tblUser {
    [Display(Name = "First Name")]
    [Required(ErrorMessage = "First Name required")]
    public string FirstName {get; set;}
}

我在我的

HomeControler

上使用了

Index

方法来呈现初始的

视图

public ActionResult Index() {
        var locations = new List<tblCurrentLocations>();
        locations.Add(new tblCurrentLocations {LocationId = 1, Location = "A"});
        locations.Add(new tblCurrentLocations {LocationId = 2, Location = "B"});

        var model = new WrapperViewModel();
        model.LookUpViewModel = new LookUpViewModel() {
            LocationList = new SelectList(locations, "LocationId", "Location")
        };
        return View(model);
    }

\u LookUpDropDowns.cshtml

@model WebApplication1.Models.tblUser

<fieldset>
<legend>tblUser</legend>

<div class="editor-label">
    @Html.LabelFor(model => model.FirstName)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.FirstName)
    @Html.ValidationMessageFor(model => model.FirstName)
</div>
// many other textboxes.

model WebApplication1.Models.LookUpViewModel

@Html.LabelFor(m => m.SelectedLocation)

@Html.DropDownListFor(m => m.SelectedLocation, Model.LocationList, "-Please select-")

@Html.ValidationMessageFor(m => m.SelectedLocation)

最后是呈现所有

部分的视图

@model WebApplication1.Models.WrapperViewModel
@{
    ViewBag.Title = "Resources";
}
<script src="~/Scripts/jquery-2.1.4.min.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>
<h2>Resources</h2>

<div id="dialog">
@using (Html.BeginForm("AddResource", "Home", FormMethod.Post)) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)
    Html.RenderPartial("_CreateNewResource", new WebApplication1.Models.tblUser());
    Html.RenderPartial("_LookUpDropDowns", Model.LookUpViewModel);
    <br />
    <input type="submit" value="Create" />
}

@model WebApplication1.Models.WrapperViewModel
@{
ViewBag.Title=“资源”；
}
资源
@使用（Html.BeginForm（“AddResource”、“Home”、FormMethod.Post））{
@Html.AntiForgeryToken（）
@Html.ValidationSummary（true）
Html.RenderPartial（“_CreateNewResource”，newWebApplication1.Models.tblUser（））；
RenderPartial（“_LookUpDropDowns”，Model.LookUpViewModel）；


}


关于
验证
和发布所选结果，这对我来说效果很好，您提到视图中的内容比您发布的内容更多，可能视图中的其他内容造成了麻烦。另请注意，我必须添加
，以使验证工作正常，您建议了您可以在POST方法中检查
ModelState
，并让我们知道错误是什么吗are@StephenMuecke当我在输入所有值后单击create按钮时，它仍然停留在页面上，只要求在下拉列表中选择值。所以我想我不能检查modelstate，你也有问题，因为你在复制脚本。切勿将脚本放在局部视图中-仅在主视图中包含它们为了证明这一点，请使用
var locations=new[]{new{LocationId=1，Location=“Location 1”}，new{LocationId=2，Location=“Location 2”}）；model.LocationList=new SelectList（locations，“LocationId”，“Location”）；
@3dd，必须这样做，否则会引发异常。请参阅我对问题的最后一条评论，以了解真正的问题是什么：）检查是否使用正确的值填充
SelectList