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");
}
}