public AssetPurchaseSerialNumberManager(AssetPurchaseSerialNumberRepository assetPurchaseSerialNumberRepository)
 {
     _assetPurchaseSerialNumberRepository = assetPurchaseSerialNumberRepository;
 }
 public AssetPurchaseSerialNumberManager()
 {
     _assetPurchaseSerialNumberRepository = new AssetPurchaseSerialNumberRepository();
 }