public MasterInventoryNewEntryVM(MasterInventoryVM parentVM)
 {
     _parentVM  = parentVM;
     Categories = new ObservableCollection <ItemCategoryVM>();
     Suppliers  = new ObservableCollection <SupplierVM>();
     UpdateCategories();
     UpdateSuppliers();
 }
 public MasterInventoryNewEntryVM(MasterInventoryVM parentVM)
 {
     _parentVM = parentVM;
     Categories = new ObservableCollection<ItemCategoryVM>();
     Suppliers = new ObservableCollection<SupplierVM>();
     UpdateCategories();
     UpdateSuppliers();
 }