How to reset password with UserManager of ASP.NET MVC 5

Question

I am wondering if there is a way to reset password with UserManager of ASP.NET MVC 5

I tried this with user that already has a password bu

Answer 1

var validPass= await userManager.PasswordValidator.ValidateAsync(txtPassword1.Text);
if(validPass.Succeeded)
{
    var user = userManager.FindByName(currentUser.LoginName);
    user.PasswordHash = userManager.PasswordHasher.HashPassword(txtPassword1.Text);
    var res= userManager.Update(user);
    if(res.Succeeded)
    {
        // change password has been succeeded
    }
}