public async Task<ActionResult> Login(LoginViewModel vm, string returnUrl)
{
if (ModelState.IsValid)
{
var signInResult = await _signInManager.PasswordSignInAsync(
vm.Username,
vm.Password,
true, // it is persistent, so the login state will be remembered for some time
false); // don't lock out the user if the sign in fails
if (signInResult.Succeeded)
{
if (string.IsNullOrWhiteSpace(returnUrl))
{
// green light to see the trips
return RedirectToAction("Trips", "App");
}
else
{
return Redirect(returnUrl);
}
}
else
{
// error on the object level
ModelState.AddModelError("", "Username or password incorrect");
}
}
// if failure, go back to the same Login screen again
return View();
}
public async Task<ActionResult> Login (LoginViewModel vm, string returnUrl)
{
if (ModelState.IsValid)
{
var signInResult = await _signInManager.PasswordSignInAsync(vm.Username,
vm.Password,
true, false);
if (signInResult.Succeeded)
{
if (string.IsNullOrWhiteSpace(returnUrl))
{
return RedirectToAction("Trips", "App");
}
else
{
return Redirect(returnUrl);
}
}
else
{
ModelState.AddModelError("", "Username or password incorrect");
}
}
return View();
}
public async Task<IActionResult> Login(LoginViewModel vm, string returnUrl)
{
if (ModelState.IsValid)
{
// Since our sign in manager uses an async method, we must add the await
// keyword in front, add async keyword to the signature and wrap the return
// with a Task object.
var signInResult = await _signInManager.PasswordSignInAsync(vm.Username,
vm.Password,
true, false);
if (signInResult.Succeeded)
{
// When we redirect, we have a query string call ReturnUrl in the navbar.
// It's passed to us with the login redirction.
// We add the following If-Else because in the future if we support
// the authorize attribute on different actions, this would redirect to
// where we attempted to go. e.g. account page, change profile page....
if (string.IsNullOrWhiteSpace(returnUrl))
{
return RedirectToAction("Trips", "App");
}
else
{
return Redirect(returnUrl);
}
}
else
{
// We're adding this model state so that when it drops down to the view
// it'll get shown to the user and the user will attempt sign in again.
ModelState.AddModelError("", "Username or password incorrect");
}
}
return View();
}
