public async Task Add()
        {
            bool result = await CompanyService.AddItem <Employee>(controller, emmployee);

            if (result)
            {
                await App.Current.MainPage.DisplayAlert("Success!", "The employee Was Successfuly Added!", "OK");

                await App.Current.MainPage.Navigation.PopAsync();
            }
            else
            {
                await App.Current.MainPage.DisplayAlert("Falied", "The employee Was NOT Added", "OK");
            }
        }