我已经让question知道为什么在我的应用程序中，当我使用模型绑定来验证模型时，文本框被突出显示（即红色边框和粉红色阴影背景应用于文本框）（< strong> TryUpdateModel（））但不是我手动验证时（ ModelState.AddModelError ）。现在已经2天了，没有任何答案。我自己尝试了所有的事情而没有成功。所以，我决定以不同的方式提问。
我理解IT的方式，这就是ModelBinding如何处理请求。
这是我的问题当重新显示表单时：
正在为其值无效的文本框做些什么来突出显示？
我知道Site.css中的类很少，例如 .input-validation-error 和 .field-validation-error ，它们会应用于文本框。也许ModelBinding在内部使用一个命令，如AddCss（“＃MyTextBox”，“。input-validation-error”）。
如果我知道它是如何工作的，我可以（也许）手动解决我的问题。
修改
根据@Ian Galloway的要求，这是代码
public class RegistrationController : Controller
{
public FormViewModel formViewModel;
private RegistrationService _registrationService = new RegistrationService();
private SaveService _saveService = new SaveService();
protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
var serialized = Request.Form["formViewModel"];
if (serialized != null)
{
formViewModel = (FormViewModel)new MvcSerializer()
.Deserialize(serialized);
TryUpdateModel(formViewModel);
}
else
formViewModel = (FormViewModel)TempData["formViewModel"]
?? new FormViewModel();
}
protected override void OnResultExecuted(ResultExecutedContext filterContext)
{
if (filterContext.Result is RedirectToRouteResult)
TempData["formViewModel"] = formViewModel;
}
public ActionResult SetUpOrganization(string cancel, string nextButton)
{
if ((nextButton != null) && ModelState.IsValid)
{
if (formViewModel.navigationData.IsAReview)
return RedirectToAction("RequestPreview");
return RedirectToAction("ChooseTypeOrganization");
}
ViewData["Cities"] = _registrationService.Get_Cities();
formViewModel.navigationData.NextAction = "SetUpOrganization";
return View(formViewModel);
}
public ActionResult ChooseTypeOrganization(string backButton, string nextButton)
{
if (backButton != null)
{
return RedirectToAction("SetUpOrganization");
}
if (nextButton != null)
{
if (formViewModel.navigationData.IsAReview)
return RedirectToAction("RequestPreview");
return RedirectToAction("DocumentsPresented");
}
ViewData["TypeOrganization"] = _registrationService.Get_AllTypeOrganization();
formViewModel.navigationData.NextAction = "ChooseTypeOrganization";
return View(formViewModel);
}
public ActionResult DocumentsPresented(string backButton, string nextButton)
{
if (backButton != null)
{
return RedirectToAction("ChooseTypeOrganization");
}
if (nextButton != null)
{
//Validation
if (string.IsNullOrEmpty(formViewModel.registrationData.DocumentPresente))
{
ModelState.AddModelError("DocumentPresente", "Veuillez préciser votre
autorisation");
return View(formViewModel);
}
//Navigation
if (formViewModel.navigationData.IsAReview)
return RedirectToAction("RequestPreview");
return RedirectToAction("PeopleRecommended");
}
formViewModel.navigationData.NextAction = "DocumentsPresented";
return View(formViewModel);
}
public ActionResult PeopleRecommended(string backButton, string nextButton, string deleteButton,
string deletePerson, string addPerson)
{
if (backButton != null)
{
return RedirectToAction("DocumentsPresented");
}
if (nextButton != null)
{
ModelState.Clear();
if (formViewModel.registrationData.PeopleRecommended.Count == 0)
ModelState.AddModelError("", "Il faut absolument designer un responsable pour la requête");
//
if (ModelState.IsValid)
{
if (formViewModel.navigationData.IsAReview)
return RedirectToAction("RequestPreview");
return RedirectToAction("StateObjectifs");
}
else
{
return View(formViewModel);
}
}
//
if (addPerson != null)
{
if (ModelState.IsValid)
{
formViewModel.registrationData.PeopleRecommended.Add(
_registrationService.Translate_PersonToBeAdded_Into_Person(formViewModel.personToBeAdded)
);
formViewModel.personToBeAdded = null;
}
else
{
formViewModel.navigationData.NextAction = "PeopleRecommended";
return View(formViewModel);
}
}
if (deleteButton != null)
{
formViewModel.registrationData.PeopleRecommended.RemoveAt(int.Parse(deletePerson));
}
ViewData.ModelState.Clear();
formViewModel.navigationData.NextAction = "PeopleRecommended";
return View(formViewModel);
}
[ValidateInput(false)]
public ActionResult StateObjectifs(string backButton, string nextButton)
{
if (backButton != null)
{
return RedirectToAction("PeopleRecommended");
}
if (nextButton != null)
{
if (string.IsNullOrEmpty(formViewModel.registrationData.Objective) ||
string.IsNullOrEmpty(formViewModel.registrationData.RequestDetails))
{
if (string.IsNullOrEmpty(formViewModel.registrationData.Objective))
ModelState.AddModelError("Objective", "Vous devez préciser l'objectif de votre requête");
if (string.IsNullOrEmpty(formViewModel.registrationData.RequestDetails))
ModelState.AddModelError("RequestDetails", "Vous devez préciser le contenu de votre requête");
return View(formViewModel);
}
if (formViewModel.navigationData.IsAReview)
return RedirectToAction("RequestPreview");
return RedirectToAction("StateDeadLine");
}
return View(formViewModel);
}
public ActionResult StateDeadLine(string backButton, string nextButton)
{
if (backButton != null)
{
return RedirectToAction("StateObjectifs");
}
if (nextButton != null)
{
if (formViewModel.registrationData.ChooseDifferentDeadLine)
{
if (formViewModel.registrationData.DifferentDeadline == null ||
string.IsNullOrEmpty(formViewModel.registrationData.ReasonsForDifferentDeadLine))
{
if (formViewModel.registrationData.DifferentDeadline == null)
ModelState.AddModelError("DifferentDeadline", "Clickez pour choisir une nouvelle date");
if (string.IsNullOrEmpty(formViewModel.registrationData.ReasonsForDifferentDeadLine))
ModelState.AddModelError("ReasonsForDifferentDeadLine", "Expliquez brievement pour quoi ce changement");
return View(formViewModel);
}
}
return RedirectToAction("RequestPreview");
}
formViewModel.navigationData.NextAction = "StateDeadLine";
return View(formViewModel);
}
public ActionResult RequestPreview(string backButton, string nextButton, string reviewInput, string save)
{
if (backButton != null)
{
return RedirectToAction("StateDeadLine");
}
if (nextButton != null)
{
_saveService.Save_FormViewModel(formViewModel);
return RedirectToAction("Index", "Home");
}
if (reviewInput != null)
{
formViewModel.navigationData.IsAReview = true;
return RedirectToAction(RedirectHelpers.RedirectReviewAction(formViewModel.navigationData, reviewInput));
}
ViewData["TypeOrganization_Summary"] = _registrationService.Get_TypeOrganization_Summary(
formViewModel.registrationData.TypeOrganizationID );
if (save != null)
{
_saveService.Save_FormViewModel(formViewModel);
return RedirectToAction("Index", "Home");
}
formViewModel.navigationData.NextAction = "RequestPreview";
return View(formViewModel);
}
}
编辑编号2
我选择了其中一个视图（因为他们都遇到了同样的问题）。该视图称为 StateObjectifs.aspx
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<!-- Script Begin -->
<script src="../../Scripts/tiny_mce/tiny_mce.js" type="text/javascript"></script>
<script type = "text/javascript">
tinyMCE.init({
mode: "textareas",
theme: "advanced",
theme_advanced_toolbar_location: "top",
theme_advanced_toolbar_align: "left",
theme_advanced_statusbar_location: "bottom",
theme_advanced_resizing: true
});
</script>
<!-- End Script -->
<fieldset id = "StateObjectifs">
<legend>Etape 5:</legend>
<div id = "left-pane" style = "width:700px">
<%using (Html.BeginForm("StateObjectifs", "Registration"))
{ %>
<%: Html.ValidationSummary() %>
<% = Html.Serialize("formViewModel", Model) %>
<table>
<tr>
<th><% = Html.LabelFor(x=>x.registrationData.Objective) %></th>
<td><% = Html.TextBoxFor(x=>x.registrationData.Objective) %>
<%: Html.ValidationMessageFor(x =>x.registrationData.Objective, "*")%></td>
</tr>
<tr>
<th colspan = "2"><% = Html.LabelFor(x =>x.registrationData.RequestDetails) %></th>
</tr>
<tr>
<td colspan = "2">
<% = Html.TextAreaFor(x =>x.registrationData.RequestDetails, 10, 75, null) %>
</td>
</tr>
</table>
</div>
<div id = "right-pane">
<ul>
<li>Les cases pour lesquelles le titre se termine par (*) sont obligatoires</li>
<li>Pour mieux vous servir, veuillez décrire clairement de manière concise
votre requête. Par exemple: <i>Les données de l'USAID sur le secteur santé pour l'année 2009</i></li>
</ul>
</div>
<div class = "clear"></div>
<fieldset>
<% Html.RenderPartial("NavigationView", Model.navigationData); %>
</fieldset>
</fieldset>
<%} %>
感谢您的帮助。
答案 0 :(得分：5)
实际上，突出显示是由呈现文本框的html帮助程序执行的。它使用给定的密钥检查模型状态是否存在错误，并在必要时添加必要的CSS类。
答案 1 :(得分：4)
我怀疑你遇到的问题是传递给ModelState.AddModelError的“key”参数必须与表单上匹配控件的名称匹配。
（否则，您希望视图引擎如何知道在错误状态下呈现哪个控件？）
答案 2 :(得分：0)
突出显示由CSS完成，适用于文本框。所以你需要在下面添加css：
.input-validation-error {
border: 1px solid #ff0000;
background-color: #ffeeee;
}