我有基于数据库的模型，它在这里
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated from a template.
//
// Manual changes to this file may cause unexpected behavior in your application.
// Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace Freelance.Models
{
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
public partial class User
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public User()
{
this.JobPosts = new HashSet<JobPost>();
this.Proposals = new HashSet<Proposal>();
this.Reviews = new HashSet<Review>();
this.SavedJobs = new HashSet<SavedJob>();
}
public int Id { get; set; }
[RegularExpression(@"^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$", ErrorMessage = "Email is not valid.")]
[Required(ErrorMessage = "Please enter Email"), MaxLength(50)]
public string Email { get; set; }
[Display(Name = "User Name")]
[Required(ErrorMessage = "Please enter User Name"), MaxLength(40)]
public string UserName { get; set; }
[Required(ErrorMessage = "Please enter Password"), MaxLength(50)]
public string Password { get; set; }
[Required(ErrorMessage = "Please enter First Name"), MaxLength(40)]
[Display(Name = "First Name")]
public string FirstName { get; set; }
[Required(ErrorMessage = "Please enter Last Name"), MaxLength(40)]
[Display(Name = "Last Name")]
public string LastName { get; set; }
[RegularExpression(@"\+(9[976]\d|8[987530]\d|6[987]\d|5[90]\d|42\d|3[875]\d|2[98654321]\d|9[8543210]|8[6421]|6[6543210]|5[87654321]|4[987654310]|3[9643210]|2[70]|7|1)\d{1,14}$", ErrorMessage = "Phone Number is not valid.")]
[Required, MaxLength(30)]
[Display(Name = "Phone Number")]
public string PhoneNumber { get; set; }
public string Photo { get; set; }
[Display(Name = "User Type")]
public string UserType { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<JobPost> JobPosts { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<Proposal> Proposals { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<Review> Reviews { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<SavedJob> SavedJobs { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<UserLogin> UserLogins { get; set; }
}
public partial class UserLogin
{
[RegularExpression(@"^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$", ErrorMessage = "Email is not valid.")]
[Required(ErrorMessage = "Please enter Email"), MaxLength(50)]
public string Email { get; set; }
[MinLength(8, ErrorMessage ="Password must be at least 8 length")]
[Required(ErrorMessage = "Please enter Password"), MaxLength(50)]
public string Password { get; set; }
}
}
我进行了用户登录，所以我只能使用电子邮件和密码登录，因为我无法发送用户模型，因为我在类中进行了验证，所以我创建了 UserLogin 类 这是我的控制器
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Login([Bind (Include ="Email,Password")]UserLogin user)
{
System.Diagnostics.Debug.WriteLine(user.Email);
System.Diagnostics.Debug.WriteLine(user.Password);
if (ModelState.IsValid)
{
System.Diagnostics.Debug.WriteLine("valid");
var data = db.Users.Where(u => u.Email.ToLower() == user.Email.ToLower() && u.Password == user.Password);
if (data.Count() == 1)
{
System.Diagnostics.Debug.WriteLine(data.SingleOrDefault().UserType);
FormsAuthentication.SetAuthCookie(data.SingleOrDefault().UserName.ToString(), true);
return RedirectToAction("CurrentUser");
}
}
ModelState.AddModelError("", "invalid Username or Password");
return RedirectToAction("Index", "Freelancer");
}
这是视图中的表单
@model Freelance.Models.ViewModels.HomeViewModel
@using (Html.BeginForm("Login", "User", FormMethod.Post))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="mb-3">
<label for="LoginEmail" class="form-label">Email address</label>
@Html.EditorFor(u => u.user.Email, new { htmlAttributes = new { @class = "form-control", @id = "LoginEmail", @type = "Email", @required = "" } })
@Html.ValidationMessageFor(u => u.user.Email, "", new { @class = "text-danger" })
</div>
<div class="mb-3">
<label for="LoginPassword" class="form-label">Password</label>
@Html.EditorFor(u => u.user.Password, new { htmlAttributes = new { @class = "form-control", @id = "LoginPassword", @type = "Password", @required = "" } })
@Html.ValidationMessageFor(u => u.user.Password, "", new { @class = "text-danger" })
</div>
<div class="mb-3 form-check">
<input type="checkbox" onclick="ShowPassword()" class="form-check-input" id="ShowPasswordCheckBox">
<label class="form-check-label" for="ShowPasswordCheckBox">Show Password</label>
</div>
<div class="d-flex justify-content-center">
<button type="submit" class="btn btn-primary">Login</button>
</div>
}
我使用 HomeViewModel 所以我可以在同一页面中访问不同的模型
public class HomeViewModel
{
public List<ViewModel> testModel { get; set; }
public List<JobPost> posts { get; set; }
public JobPost post { get; set; }
public List<User> users { get; set; }
public User user { get; set; }
public SavedJob savedPost { get; set; }
public List<SavedJob> savedPosts { get; set; }
}
当我尝试提交表单时，即使我提交了它也不会显示错误消息的问题
[MinLength(8)]
但在登录方法中它确实说它不是有效模型
我的问题是为什么它没有在 html 表单中显示错误消息？
我确实像 Serge Said 那样解决了它 现在这是我的观点：
@using (Html.BeginForm("Login", "User", FormMethod.Post))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="mb-3">
<label for="LoginEmail" class="form-label">Email address</label>
@Html.EditorFor(u => u.userLogin.Email, new { htmlAttributes = new { @class = "form-control", @id = "LoginEmail", @type = "Email", @required = "" } })
@Html.ValidationMessageFor(u => u.userLogin.Email, "", new { @class = "text-danger" })
</div>
<div class="mb-3">
<label for="LoginPassword" class="form-label">Password</label>
@Html.EditorFor(u => u.userLogin.Password, new { htmlAttributes = new { @class = "form-control", @id = "LoginPassword", @type = "Password", @required = "" } })
@Html.ValidationMessageFor(u => u.userLogin.Password, "", new { @class = "text-danger" })
</div>
<div class="mb-3 form-check">
<input type="checkbox" onclick="ShowPassword()" class="form-check-input" id="ShowPasswordCheckBox">
<label class="form-check-label" for="ShowPasswordCheckBox">Show Password</label>
</div>
<div class="d-flex justify-content-center">
<button type="submit" class="btn btn-primary">Login</button>
</div>
}
它向控制器返回空值
答案 0 :(得分：0)
由于您有一个特殊的登录类，因此您必须将其添加到您的 ViewModel
public class HomeViewModel
{
.....
public User user { get; set; }
public UserLogin userLogin { get; set; }
````
}
修复您的登录视图
<div class="mb-3">
<label for="LoginPassword" class="form-label">Password</label>
@Html.EditorFor(u => u.userLogin.Password, new { htmlAttributes = new { @class = "form-control", @id = "LoginPassword", @type = "Password", @required = "" } })
@Html.ValidationMessageFor(u => u.userLogin.Password, "", new { @class = "text-danger" })
</div>
还有行动
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Login(HomeViewModel viewModel)
或者如果你只是在登录视图中使用 UserLogin 作为模型可能会更好
@model Freelance.Models.ViewModels.UserLogin
.....
<div class="mb-3">
<label for="LoginPassword" class="form-label">Password</label>
@Html.EditorFor(u => u.Password, new { htmlAttributes = new { @class = "form-control", @id = "LoginPassword", @type = "Password", @required = "" } })
@Html.ValidationMessageFor(u => u.Password, "", new { @class = "text-danger" })
</div>
你也必须改变动作
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Login(UserLogin userLogin)