private void RefreshData()
 {
     FilteredSalesOrders = SalesOrderList = SalesOrders.GetOpenedSalesOrders().ToSvenTechCollection();
     CheckOrdersStatus();
 }
 private void SetSalesOrderStatusViewModel()
 {
     SalesOrderStatusViewModel.SetColorToOrange();
     SalesOrderStatusViewModel.StatusText  = "Offene Aufträge";
     SalesOrderStatusViewModel.StatusValue = SalesOrders.GetOpenedSalesOrders().Count().ToString();
 }