public class ForgotPasswordViewModel { [Required] [EmailAddress] public string Email { get; set; } } public class ForgotPasswordController : Controller { [HttpPost] [ValidateAntiForgeryToken] public async TaskForgotPassword(ForgotPasswordViewModel model) { if (ModelState.IsValid) { // Lookup user by email or username var user = await _userManager.FindByEmailAsync(model.Email); if (user == null) { // User not found, display error message ModelState.AddModelError(string.Empty, "We could not find a user with that email address."); return View(model); } // Send password reset email var token = await _userManager.GeneratePasswordResetTokenAsync(user); var callbackUrl = Url.ResetPasswordCallbackLink(user.Id, token, Request.Scheme); await _emailSender.SendEmailAsync( model.Email, "Reset your password", $"Please reset your password by clicking here: link"); // Display success message return RedirectToAction(nameof(ForgotPasswordConfirmation)); } // If we got this far, something failed, display form again return View(model); } }
public class ForgotPasswordController : Controller { public IActionResult ForgotPassword() { return View(); } }This code defines a `ForgotPasswordController` that contains a GET action for showing the forgot password form. The action simply returns a `ViewResult` that renders a view with the relevant form fields. Package/library: The appropriate package or library for working with the ForgotPasswordViewModel will depend on the specific framework or toolset being used for the application. In an ASP.NET Core application, the Microsoft.AspNetCore.Identity NuGet package provides the `UserManager` and `SignInManager` types that are often used in conjunction with the `ForgotPasswordViewModel`. Alternatively, other libraries such as SimpleInjector or Autofac can be used to handle dependency injection within the ViewModel.