internal void ClearWasteCompositions() { if (WasteCompositionCollection != null) { WasteCompositionCollection.Clear(); } }
internal void SetWasteComposition(WasteComposition wasteComposition) { if (WasteCompositionCollection == null) { throw new InvalidOperationException("Waste Composition cannot be null"); } WasteCompositionCollection.Add(wasteComposition); }