private async void Load()
{
lista_cursos.Items.Clear();
lista_funcionarios.Items.Clear();
lista_inscricao.Items.Clear();
foreach (var course in await _courseClient.GetAllAsync())
{
lista_cursos.Items.Add(course);
}
foreach (var employee in await _employeeClient.GetEmployeesAsync())
{
lista_funcionarios.Items.Add(employee);
}
foreach (var subscription in await _subscriptionClient.GetSubscriptionsAsync())
{
lista_inscricao.Items.Add(subscription);
}
}