我对 MVC5/ASP.NET Identity 还很陌生,我发现了一个让我有点难过的问题。
我正在为我的 ASP.NET MVC5 应用程序编写一个小表单,该表单将允许管理员用户(管理员角色的成员)查看已注册到该站点的用户并编辑这些用户的详细信息并为其分配角色。提交表单时,如果已将角色分配给用户,则调用 UserManager.AddToRole 方法。
之后我注意到,一旦完成,该用户就无法登录应用程序。查看数据库,出现调用 AddToRole 时,PasswordHash 字段设置为 null。这是正常的吗?如果不是,我该如何解决这个问题?
供参考,我的相关代码如下
控制器
[HttpPost]
[ValidateAntiForgeryToken]
[Authorize(Roles = "Admin")]
public ActionResult Details(EditUserViewModel model)
{
model.Save();
return RedirectToAction("List", "Account");
}
相关视图模型
public class EditUserViewModel
{
public string UserId { get; set; }
public string UserName { get; set; }
[Required]
[StringLength(255)]
[Display(Name = "Email address")]
public string Email { get; set; }
[StringLength(255)]
[Display(Name = "First name")]
public string FirstName { get; set; }
[StringLength(255)]
[Display(Name = "Last Name")]
public string LastName { get; set; }
[StringLength(255)]
[Display(Name = "Mobile Number")]
public string MobileNumber { get; set; }
public IList<EditUserRolesViewModel> UserRoles { get; set; }
public void Save()
{
using (ApplicationDbContext context = new ApplicationDbContext())
{
ApplicationUser user = new ApplicationUser()
{
Id = this.UserId,
UserName = this.UserName,
Email = this.Email,
FirstName = this.FirstName,
LastName = this.LastName,
MobileNumber = this.MobileNumber
};
context.Users.Attach(user);
context.Entry(user).Property(x => x.Email).IsModified = true;
context.Entry(user).Property(x => x.FirstName).IsModified = true;
context.Entry(user).Property(x => x.LastName).IsModified = true;
context.Entry(user).Property(x => x.MobileNumber).IsModified = true;
context.SaveChanges();
var UserManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(context));
foreach (var row in this.UserRoles)
{
if (row.RowChanged)
{
if (row.RoleAssigned)
{
UserManager.AddToRole(this.UserId, row.RoleName);
}
else
{
UserManager.RemoveFromRole(this.UserId, row.RoleName);
}
}
}
}
}
}
public class EditUserRolesViewModel
{
public string RoleId { get; set; }
[Display(Name = "Role name")]
public string RoleName { get; set; }
[Display(Name = "Assigned")]
public bool RoleAssigned { get; set; }
public bool RowChanged { get; set; }
}