public void GetCustomerList()
{
ObservableCollection<CustomerViewModel> customers = new ObservableCollection<CustomerViewModel>();
FactoryManager myManager = new FactoryManager();
foreach (var item in myManager.GetCustomerManager().GetAllCustomers())
{
customers.Add(
new CustomerViewModel()
{
CustomerId = item.ID,
CompanyName = item.CompanyName
});
}
this.Customers = customers;
}