Asp.net mvc 自定义的StringLength验证不起作用
我在项目中添加了自定义的StringLength类Asp.net mvc 自定义的StringLength验证不起作用,asp.net-mvc,asp.net-mvc-3,asp.net-mvc-4,Asp.net Mvc,Asp.net Mvc 3,Asp.net Mvc 4,我在项目中添加了自定义的StringLength类 using System; using System.ComponentModel.DataAnnotations; namespace Argussoft.BI.DAL.Validation { public class PasswordLengthAttribute : StringLengthAttribute { public PasswordLengthAttribute(int maximumLength)
using System;
using System.ComponentModel.DataAnnotations;
namespace Argussoft.BI.DAL.Validation
{
public class PasswordLengthAttribute : StringLengthAttribute
{
public PasswordLengthAttribute(int maximumLength)
: base(maximumLength)
{
}
public override bool IsValid(object value)
{
string val = Convert.ToString(value);
if (val.Length < MinimumLength)
ErrorMessage = "Минимальная длина пароля 5 символов";
if (val.Length > MaximumLength)
ErrorMessage = "Максимальная длина пароля 20 символов";
return base.IsValid(value);
}
}
}
这是我的控制器
[HttpPost]
public ActionResult CreateUser(CreateUserDto dto)
{
if (!Request.IsAjaxRequest()) return View("_AddUserDialog", dto);
if (!ModelState.IsValid) {FillViewBags(); return PartialView("_AddUserDialog", dto);}
string hash;
string salt;
CryptoUtils.SetHashAndSalt(dto.Password, out hash, out salt);
UserService.CreateUser(
new User ()
{
Name = dto.Name,
Email = dto.Email,
FullName = dto.FullName,
Role = UserService.SetRole(dto.Role),
Phone = dto.Phone,
Status = UserService.SetUserStatus(dto.Status),
PasswordHash = hash,
PasswordSalt = salt
});
return Json(new { Message = string.Format("Пользователь {0} успешно создан", dto.Name) });
}
但是如果我尝试输入的密码少于5个字符或超过20个字符,ModelState.IsValid==false,但是
当密码少于5个字符或超过20个字符时,我不会收到任何错误消息。有什么问题?如果您将错误消息放在装饰上,就像其他两个属性上一样?您是否尝试使用常量值而不是User.PasswordMaxLength?@PKKG是的,我尝试使用常量,但是[PasswordLength5,MinimumLength=20]不会给我带来错误消息。您是否设置了调试器,在StringLengthatAttribute类中。我试图在调试器中检查代码,StringLengthAttribute类可以工作,但它看起来像是return base.IsValidvalue;不会返回true。
[HttpPost]
public ActionResult CreateUser(CreateUserDto dto)
{
if (!Request.IsAjaxRequest()) return View("_AddUserDialog", dto);
if (!ModelState.IsValid) {FillViewBags(); return PartialView("_AddUserDialog", dto);}
string hash;
string salt;
CryptoUtils.SetHashAndSalt(dto.Password, out hash, out salt);
UserService.CreateUser(
new User ()
{
Name = dto.Name,
Email = dto.Email,
FullName = dto.FullName,
Role = UserService.SetRole(dto.Role),
Phone = dto.Phone,
Status = UserService.SetUserStatus(dto.Status),
PasswordHash = hash,
PasswordSalt = salt
});
return Json(new { Message = string.Format("Пользователь {0} успешно создан", dto.Name) });
}