public async Task <IActionResult> DeleteUserRole(UserViewModel model)
{
ViewData["Title"] = "Edit a User";
var user = await UserManagerAgent.FindByNameAsync(model?.UserName).ConfigureAwait(false);
if (await RoleManagerAgent.RoleExistsAsync(model.NewRole).ConfigureAwait(false) && await UserManagerAgent.IsInRoleAsync(user, model.NewRole).ConfigureAwait(false))
{
await UserManagerAgent.RemoveFromRoleAsync(user, model.NewRole).ConfigureAwait(false);
}
model = _mapper.Map <UserViewModel>(user);
model.MemberRoles.AddRange(await UserManagerAgent.GetRolesAsync(user).ConfigureAwait(false));
model.AllRoles.AddRange(GetAllRolesAsSelectList());
return(View("EditUser", model));
}