Breeze.ContextProvider.ContextProvider.SaveChanges C# (CSharp) Method

    public SaveResult SaveChanges(JObject saveBundle, TransactionSettings transactionSettings = null) {

      if (SaveWorkState == null || SaveWorkState.WasUsed) {
        InitializeSaveState(saveBundle);
      }

      transactionSettings = transactionSettings ?? BreezeConfig.Instance.GetTransactionSettings();
      try {
        if (transactionSettings.TransactionType == TransactionType.TransactionScope) {
          var txOptions = transactionSettings.ToTransactionOptions();
          using (var txScope = new TransactionScope(TransactionScopeOption.Required, txOptions)) {           
            OpenAndSave(SaveWorkState);           
            txScope.Complete();
          }
        } else if (transactionSettings.TransactionType == TransactionType.DbTransaction) {
          this.OpenDbConnection();
          using (IDbTransaction tran = BeginTransaction(transactionSettings.IsolationLevelAs)) {
            try {
              OpenAndSave(SaveWorkState);
              tran.Commit();
            } catch {
              tran.Rollback();
              throw;
            }
          }          
        } else {
          OpenAndSave(SaveWorkState);
        }
      } catch (EntityErrorsException e) {
        SaveWorkState.EntityErrors = e.EntityErrors;
        throw; 
      } catch(Exception e2) {
        if (!HandleSaveException(e2, SaveWorkState)) {
          throw;
        }
      } finally {
        CloseDbConnection();
      }

      return SaveWorkState.ToSaveResult();
    }