void DashboardInitialization()
 {
     SummaryOpportunities   = QueriesHelper.GetSummaryOpportunities(unitOfWork.Quotes).ToList();
     GoodSoldPeriodSelector = new ObservableCollection <bool>()
     {
         true, false, false
     };
     RevenuePeriodSelector = new ObservableCollection <bool>()
     {
         true, false, false
     };
     GoodSoldPeriodSelector.CollectionChanged += GoodSoldSelectorChanged;
     RevenuePeriodSelector.CollectionChanged  += RevenuesSelectorChanged;
     salesSummaryItems        = GetSalesSummaryItems();
     costAverageItems         = GetCostAverageItems();
     DashboardOrders          = QueriesHelper.GetOrderInfo(unitOfWork.Orders);
     SalesSummarySelectedItem = salesSummaryItems[0].ToList();
     CostSelectedItem         = costAverageItems[0].ToList();
 }