Identityuser Password Change - Aspnet

Question

I have a registration form, which registers the user with email, and the password, but the need arose to change this password, and using the class Identity, she owns the field PasswordHash, and I wish I could change the registered password. It is possible to change ?

This is the way I change the other data:

public async Task<IActionResult> Register(EditViewModel model)
    {
        var teste = model.Usuarios.Email;
        var userInDb = db.Users.Where(u => u.Email.ToLower().Equals(model.Usuarios.Email.ToLower())).FirstOrDefault();
        userInDb.PasswordHash = model.Usuarios.PasswordHash;
        userInDb.FirstName = model.Usuarios.FirstName;
        userInDb.LastName = model.Usuarios.LastName;
        userInDb.PhoneNumber = model.Usuarios.PhoneNumber;


        db.Update(userInDb);
        await db.SaveChangesAsync();


        //StatusMessage = "A conta do perfil foi atualizada";
        return RedirectToAction("Index", "User");

    }

However I do not know how to change the password, I searched and I found nothing until then explaining.

Answer 1

Just use the method ChangePasswordAsync.

In the ASP.NET Core use that way:

ApplicationUser appUser = db.Users.Find(userId);
var result = await UserManager.ChangePasswordAsync(appUser, model.NewPassword);

Below is an example of password change method using Identity:

public async Task<ActionResult> ChangePassword(ChangePasswordViewModel model)
{
    if (!ModelState.IsValid)
    {
        return View(model);
    }
    var userId = User.Identity.GetUserId();
    var result = await UserManager.ChangePasswordAsync(userId, model.OldPassword, model.NewPassword);
    if (result.Succeeded)
    {
        var user = await UserManager.FindByIdAsync(userId);
        if (user != null)
        {
            await SignInAsync(user, isPersistent: false);
        }
        return RedirectToAction("Index", new { Message = ManageMessageId.ChangePasswordSuccess });
    }
    AddErrors(result);
    return View(model);
}