我似乎无法使[Required]和[RegularExpression]数据注释在特定模型上起作用。在所有其他模型上都可以使用。当我在Address.cshtml的字段中未输入任何信息时，它仍然会接受它，并将其发送到数据库。在需要使用的所有其他页面上，它都能正常工作。所以我猜我一定做错了。
Address.cshtml.cs 是InputModel所在的必填字段。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Identity;
using Microsoft.Extensions.Logging;
using bytme.Models;
using bytme.Data;
namespace bytme.Areas.Identity.Pages.Account.Manage
{
public class AddressModel : PageModel
{
private readonly UserManager<UserModel> _userManager;
private readonly SignInManager<UserModel> _signInManager;
private readonly ILogger<AddressModel> _logger;
private readonly ApplicationDbContext _context;
public AddressModel(
UserManager<UserModel> userManager,
SignInManager<UserModel> signInManager,
ILogger<AddressModel> logger,
ApplicationDbContext context)
{
_userManager = userManager;
_signInManager = signInManager;
_logger = logger;
_context = context;
}
[BindProperty]
public InputModel Input { get; set; }
public string ReturnUrl { get; set; }
[TempData]
public string StatusMessage { get; set; }
public class InputModel
{
[Required]
[DataType(DataType.Text)]
[Display(Name = "Name")]
[StringLength(100, ErrorMessage = "Invalid input. Maximum is 100 characters.")]
public string name { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "Surname")]
[StringLength(100, ErrorMessage = "Invalid input. Maximum is 100 characters.")]
public string surname { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "Street")]
[StringLength(48, ErrorMessage = "The longest street name in the Netherlands is 48 characters.")]
public string street { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "House Number")]
[StringLength(5, ErrorMessage = "The longest house number in the Netherlands is 5 characters.")]
public string streetnumber { get; set; }
//[DataType(DataType.Text)]
//[Display(Name = "House Number Addition", Description = "For example A or II")]
//[StringLength(6, ErrorMessage = "
//public string streetnumberadd { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "City")]
[StringLength(28, ErrorMessage = "The longest place name in the Netherlands is 28 characters.")]
public string city { get; set; }
[Required]
[DataType(DataType.PostalCode)]
[Display(Name = "Postal Code")]
[RegularExpression(@"^[1-9][0-9]{3}\s?[a-zA-Z]{2}$", ErrorMessage = "Invalid zip, for example: 1234AB")]
public string zipcode { get; set; }
}
public void OnGet(string returnUrl = null)
{
ReturnUrl = returnUrl;
}
public async Task<IActionResult> OnPostAsync()
{
var user = await _userManager.GetUserAsync(User);
if (user == null)
{
throw new ApplicationException($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
}
user.name = Input.name;
user.surname = Input.surname;
user.street = Input.street;
user.streetnumber = Input.streetnumber;
user.city = Input.city;
user.zipcode = Input.zipcode;
var changeAdresResult = _context.Users.Update(user);
_context.SaveChanges();
await _signInManager.SignInAsync(user, isPersistent: false);
_logger.LogInformation("User added their address information successfully.");
StatusMessage = "Your address information has been added.";
return RedirectToPage();
}
}
}
Address.cshtml 是创建字段的地方。
@page
@model AddressModel
@inject SignInManager<UserModel> SignInManager
@using Microsoft.AspNetCore.Identity
@using bytme.Models;
@{
ViewData["Title"] = "Add Address Information";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@{
var hasExternalLogins = (await SignInManager.GetExternalAuthenticationSchemesAsync()).Any();
}
<div>
<h3>Change your account settings</h3>
<hr />
<div class="row">
<div class="col-md-3">
<partial name="_ManageNav" />
</div>
<div class="col-md-9">
<div class="row">
<div class="col-md-6">
<partial name="_StatusMessage" for="StatusMessage" />
<h4>@ViewData["Title"]</h4>
<form id="change-password-form" method="post">
<div asp-validation-summary="All" class="text-danger"></div>
<div class="form-group">
<label asp-for="Input.name"></label>
<input asp-for="Input.name" class="form-control" />
<span asp-validation-for="Input.name" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Input.surname"></label>
<input asp-for="Input.surname" class="form-control" />
<span asp-validation-for="Input.surname" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Input.street"></label>
<input asp-for="Input.street" class="form-control" />
<span asp-validation-for="Input.street" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Input.streetnumber"></label>
<input asp-for="Input.streetnumber" class="form-control" />
<span asp-validation-for="Input.streetnumber" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Input.city"></label>
<input asp-for="Input.city" class="form-control" />
<span asp-validation-for="Input.city" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="Input.zipcode"></label>
<input asp-for="Input.zipcode" class="form-control" />
<span asp-validation-for="Input.zipcode" class="text-danger"></span>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
</div>
</div>
</div>
</div>
编辑：
在将OnPostAsync编辑为另一个名称（例如AccountChange）时，我注意到数据注释确实起作用。但是我确实需要方法上的OnPostAsync，因为在视图上我使用method="post"，否则我无法将信息发送到数据库。
答案 0 :(得分：0)
我认为您需要在OnPostAsync中进行验证：
public async Task<IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return Page(); // <-- model error
}
// continue with your post logic...
请参见here