public async Task <IActionResult> DeleteRoleFromUser(RoleToUserView result)
        {
            if (!ModelState.IsValid)
            {
                return(View(result));
            }

            var user = await _userManager.FindByIdAsync(result.userId);

            var role = await _roleManager.FindByNameAsync(result.roleId);

            await _userManager.RemoveFromRoleAsync(user, role.Name);

            return(RedirectToAction("UserDetails", new { Id = user.Id }));
        }
        public async Task <IActionResult> AddUserToRole(RoleToUserView result)
        {
            if (!ModelState.IsValid)
            {
                return(View(result));
            }

            var user = await _userManager.FindByIdAsync(result.userId);

            var role = await _roleManager.FindByIdAsync(result.roleId);

            await _userManager.AddToRoleAsync(user, role.Name);

            return(RedirectToAction("UsersList"));
        }