如何在 ASP.NET MVC 2 应用程序中的流畅验证结果视图中显示错误?
我正在学习 asp.net mvc 2 和流畅的验证。我的设置显示在此处的文本后面。我的问题是我不知道如何以一种很好的方式设置视图页面上的 res 对象中包含的错误。这应该怎么做呢?现在视图上没有显示任何错误,但验证工作得很好。我怀疑我必须在代码中写入“//设置视图上的错误”的地方插入一些代码。但我需要输入什么代码呢?我真的无法找到任何明确的答案——也许我只是盲目的。我期待您的帮助。谢谢。
我的控制器:
public class AccountController
{
public ActionResult LogOn()
{
return View();
}
[HttpPost]
public ActionResult LogOn(LogOnModel1 model, string returnUrl)
{
public class LogOnModel1
{
public string UserName { get; set; }
public string Password { get; set; }
public bool RememberMe { get; set; }
}
public class AccountValidator : AbstractValidator<LogOnModel1>
{
public AccountValidator()
{
RuleFor(x => x.UserName).NotNull().WithMessage("Brugernavn skal udfyldes").NotEmpty().WithMessage("Brugernavn skal udfyldes");
RuleFor(x => x.Password).NotNull().WithMessage("Kodeord skal udfyldes").NotEmpty().WithMessage("Kodeord skal udfyldes");
Custom(x => { return Membership.Provider.ValidateUser(x.UserName,x.Password) ? new ValidationFailure(null, "wrong password") : null; });
}
}
FluentValidation.Results.ValidationResult res = new Models.AccountValidator().Validate(model);
if (res.IsValid)
{
FormsService.SignIn(model.UserName, model.RememberMe);
if (!String.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
// Set errors on view
}
return View(model);
}
}
我的模型和验证类:
public class LogOnModel1
{
public string UserName { get; set; }
public string Password { get; set; }
public bool RememberMe { get; set; }
}
public class AccountValidator : AbstractValidator<LogOnModel1>
{
public AccountValidator()
{
RuleFor(x => x.UserName).NotNull().WithMessage("Brugernavn skal udfyldes").NotEmpty().WithMessage("Brugernavn skal udfyldes");
RuleFor(x => x.Password).NotNull().WithMessage("Kodeord skal udfyldes").NotEmpty().WithMessage("Kodeord skal udfyldes");
Custom(x => { return Membership.Provider.ValidateUser(x.UserName,x.Password) ? new ValidationFailure(null, "wrong password") : null; });
}
}
最后是我的视图:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TelCountMVC.Models.LogOnModel1>" %>
<asp:Content ID="loginTitle" ContentPlaceHolderID="TitleContent" runat="server">
Log On
</asp:Content>
<asp:Content ID="loginContent" ContentPlaceHolderID="MainContent" runat="server">
<h2>Log On</h2>
<p>
Please enter your username and password. <%: Html.ActionLink("Register", "Register") %> if you don't have an account.
</p>
<% using (Html.BeginForm()) { %>
<%: Html.ValidationSummary(true, "Login was unsuccessful. Please correct the errors and try again.") %>
<div>
<fieldset>
<legend>Account Information</legend>
<div class="editor-label">
<%: Html.LabelFor(m => m.UserName) %>
</div>
<div class="editor-field">
<%: Html.TextBoxFor(m => m.UserName) %>
<%: Html.ValidationMessageFor(m => m.UserName) %>
</div>
<div class="editor-label">
<%: Html.LabelFor(m => m.Password) %>
</div>
<div class="editor-field">
<%: Html.PasswordFor(m => m.Password) %>
<%: Html.ValidationMessageFor(m => m.Password) %>
</div>
<div class="editor-label">
<%: Html.CheckBoxFor(m => m.RememberMe) %>
<%: Html.LabelFor(m => m.RememberMe) %>
</div>
<p>
<input type="submit" value="Log On" />
</p>
</fieldset>
</div>
<% } %>
</asp:Content>
I am learning asp.net mvc 2 and fluent validation. My setup is shown after the text here. My problem is that I do not know how to set the errors contained in the res object on the view page in a nice way. How should this be done? As it is now no errors are displayed on the view, but the validation is working quite well. I suspect I have to insert some code where I have written "// Set errors on view" in the code. But what code do I need to put? I was not really able to find any clear answers to this - maybe I am just blind. I am looking forward to your help. Thank you.
My controller:
public class AccountController
{
public ActionResult LogOn()
{
return View();
}
[HttpPost]
public ActionResult LogOn(LogOnModel1 model, string returnUrl)
{
public class LogOnModel1
{
public string UserName { get; set; }
public string Password { get; set; }
public bool RememberMe { get; set; }
}
public class AccountValidator : AbstractValidator<LogOnModel1>
{
public AccountValidator()
{
RuleFor(x => x.UserName).NotNull().WithMessage("Brugernavn skal udfyldes").NotEmpty().WithMessage("Brugernavn skal udfyldes");
RuleFor(x => x.Password).NotNull().WithMessage("Kodeord skal udfyldes").NotEmpty().WithMessage("Kodeord skal udfyldes");
Custom(x => { return Membership.Provider.ValidateUser(x.UserName,x.Password) ? new ValidationFailure(null, "wrong password") : null; });
}
}
FluentValidation.Results.ValidationResult res = new Models.AccountValidator().Validate(model);
if (res.IsValid)
{
FormsService.SignIn(model.UserName, model.RememberMe);
if (!String.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
// Set errors on view
}
return View(model);
}
}
My model and validation class:
public class LogOnModel1
{
public string UserName { get; set; }
public string Password { get; set; }
public bool RememberMe { get; set; }
}
public class AccountValidator : AbstractValidator<LogOnModel1>
{
public AccountValidator()
{
RuleFor(x => x.UserName).NotNull().WithMessage("Brugernavn skal udfyldes").NotEmpty().WithMessage("Brugernavn skal udfyldes");
RuleFor(x => x.Password).NotNull().WithMessage("Kodeord skal udfyldes").NotEmpty().WithMessage("Kodeord skal udfyldes");
Custom(x => { return Membership.Provider.ValidateUser(x.UserName,x.Password) ? new ValidationFailure(null, "wrong password") : null; });
}
}
and finally my view:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TelCountMVC.Models.LogOnModel1>" %>
<asp:Content ID="loginTitle" ContentPlaceHolderID="TitleContent" runat="server">
Log On
</asp:Content>
<asp:Content ID="loginContent" ContentPlaceHolderID="MainContent" runat="server">
<h2>Log On</h2>
<p>
Please enter your username and password. <%: Html.ActionLink("Register", "Register") %> if you don't have an account.
</p>
<% using (Html.BeginForm()) { %>
<%: Html.ValidationSummary(true, "Login was unsuccessful. Please correct the errors and try again.") %>
<div>
<fieldset>
<legend>Account Information</legend>
<div class="editor-label">
<%: Html.LabelFor(m => m.UserName) %>
</div>
<div class="editor-field">
<%: Html.TextBoxFor(m => m.UserName) %>
<%: Html.ValidationMessageFor(m => m.UserName) %>
</div>
<div class="editor-label">
<%: Html.LabelFor(m => m.Password) %>
</div>
<div class="editor-field">
<%: Html.PasswordFor(m => m.Password) %>
<%: Html.ValidationMessageFor(m => m.Password) %>
</div>
<div class="editor-label">
<%: Html.CheckBoxFor(m => m.RememberMe) %>
<%: Html.LabelFor(m => m.RememberMe) %>
</div>
<p>
<input type="submit" value="Log On" />
</p>
</fieldset>
</div>
<% } %>
</asp:Content>
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我怀疑你很久以前就已经明白了这一点。
如果调用 RedirectToAction,您将丢失模型状态。您必须返回一个视图并将 LogOnModel1 模型传递到其中。
将视图连接到您的模型而不是 System.Web.Mvc.ViewPage ,然后在控制器中执行如下操作:
这里是 Jeremy Skinner(Fluent Validation 的创建者)关于如何使用 MVC 设置它的描述的链接2.
I suspect that you have figured this out ages ago.
You lose model state if you call RedirectToAction. You have to return a view and pass the LogOnModel1 model into it.
Connect the view to your model instead of System.Web.Mvc.ViewPage and then in your controller do something like this:
And here is a link to Jeremy Skinner's (the creator of Fluent Validation) description of how to set it up with MVC 2.