public MainWindow()
{
InitializeComponent();
HTTPForEmployee employeeHttpClient = new HTTPForEmployee();
DataContext = new EmployeeViewModel(employeeHttpClient);
}
public EmployeeViewModel(HTTPForEmployee employeeHttpClient)
{
Employees = new ObservableCollection <EmployeeModel>();
_employeeHttpClient = employeeHttpClient;
_timer = new System.Windows.Threading.DispatcherTimer();
_timer.Tick += new EventHandler(TimerTick);
_timer.Interval = new TimeSpan(0, 0, 2);
_timer.Start();
}
