public ProductExportViewModel()
        {
            m_Sorts      = SortMapper.GetAllSorts();
            m_Categories = ToolConstants.DEFAULT_FRUIT_CATEGORIES;
            m_Costumers  = CostumerMapper.GetAllCostumers();
            m_Products   = ProductMapper.GetAllProducts();


            InitializeCommands();

            RaisePropertyChanged(nameof(Products));
            RaisePropertyChanged(nameof(Sorts));
            RaisePropertyChanged(nameof(Categories));
            RaisePropertyChanged(nameof(Origins));
        }
        private void OnAddSort()
        {
            if (m_NewSort == null || m_NewSort == "")
            {
                return;
            }

            if (!m_Sorts.Contains(m_NewSort))
            {
                m_Sorts.Add(m_NewSort);
                SortMapper.SaveSort(m_NewSort);
                m_NewSort = "";
                RaisePropertyChanged(nameof(NewSort));
                RaisePropertyChanged(nameof(Sorts));
            }
            m_AddSortVisible = false;
            RaisePropertyChanged(nameof(AddSortVisible));
        }