public ChartService() { stationeryRepo = StationeryRepo.Instance; categoryRepo = CategoryRepo.Instance; supplierTenderRepo = SupplierTenderRepo.Instance; supplierRepo = SupplierRepo.Instance; adjustmentVoucherRepo = AdjustmentVoucherRepo.Instance; adjustmentVoucherDetailRepo = AdjustmentVoucherDetailRepo.Instance; requisitionRepo = RequisitionRepo.Instance; requisitionDetailRepo = RequisitionDetailRepo.Instance; disbursementRepo = DisbursementRepo.Instance; employeeRepo = EmployeeRepo.Instance; departmentRepo = DepartmentRepo.Instance; purchaseOrderRepo = PurchaseOrderRepo.Instance; purchaseOrderDetailRepo = PurchaseOrderDetailRepo.Instance; }