/// <summary>
    /// Runs the code example.
    /// </summary>
    /// <param name="user">The AdWords user.</param>
    /// <param name="campaignId">Id of the campaign to which experiments are
    /// added.</param>
    /// <param name="adGroupId">Id of the ad group to which experiments are
    /// added.</param>
    /// <param name="criterionId">Id of the criterion for which experiments
    /// are added.</param>
    public void Run(AdWordsUser user, long campaignId, long adGroupId, long criterionId) {
      // Get the ExperimentService.
      ExperimentService experimentService =
          (ExperimentService) user.GetService(AdWordsService.v201409.ExperimentService);

      // Get the AdGroupService.
      AdGroupService adGroupService =
          (AdGroupService) user.GetService(AdWordsService.v201409.AdGroupService);

      // Get the AdGroupCriterionService.
      AdGroupCriterionService adGroupCriterionService =
          (AdGroupCriterionService) user.GetService(AdWordsService.v201409.AdGroupCriterionService);

      // Create the experiment.
      Experiment experiment = new Experiment();
      experiment.campaignId = campaignId;
      experiment.name = "Interplanetary Cruise #" + ExampleUtilities.GetRandomString();
      experiment.queryPercentage = 10;
      experiment.startDateTime = DateTime.Now.AddDays(1).ToString("yyyyMMdd HHmmss");

      // Optional: Set the end date.
      experiment.endDateTime = DateTime.Now.AddDays(30).ToString("yyyyMMdd HHmmss");

      // Optional: Set the status.
      experiment.status = ExperimentStatus.ENABLED;

      // Create the operation.
      ExperimentOperation experimentOperation = new ExperimentOperation();
      experimentOperation.@operator = Operator.ADD;
      experimentOperation.operand = experiment;

      try {
        // Add the experiment.
        ExperimentReturnValue experimentRetVal = experimentService.mutate(
            new ExperimentOperation[] {experimentOperation});

        // Display the results.
        if (experimentRetVal != null && experimentRetVal.value != null && experimentRetVal.value.
            Length > 0) {
          long experimentId = 0;

          Experiment newExperiment = experimentRetVal.value[0];

          Console.WriteLine("Experiment with name = \"{0}\" and id = \"{1}\" was added.\n",
              newExperiment.name, newExperiment.id);
          experimentId = newExperiment.id;

          // Set ad group for the experiment.
          AdGroup adGroup = new AdGroup();
          adGroup.id = adGroupId;

          // Create experiment bid multiplier rule that will modify ad group bid
          // for the experiment.
          ManualCPCAdGroupExperimentBidMultipliers adGroupBidMultiplier =
              new ManualCPCAdGroupExperimentBidMultipliers();
          adGroupBidMultiplier.maxCpcMultiplier = new BidMultiplier();
          adGroupBidMultiplier.maxCpcMultiplier.multiplier = 1.5;

          // Set experiment data to the ad group.
          AdGroupExperimentData adGroupExperimentData = new AdGroupExperimentData();
          adGroupExperimentData.experimentId = experimentId;
          adGroupExperimentData.experimentDeltaStatus = ExperimentDeltaStatus.MODIFIED;
          adGroupExperimentData.experimentBidMultipliers = adGroupBidMultiplier;

          adGroup.experimentData = adGroupExperimentData;

          // Create the operation.
          AdGroupOperation adGroupOperation = new AdGroupOperation();
          adGroupOperation.operand = adGroup;
          adGroupOperation.@operator = Operator.SET;

          // Update the ad group.
          AdGroupReturnValue adGroupRetVal = adGroupService.mutate(new AdGroupOperation[] {
              adGroupOperation});

          // Display the results.
          if (adGroupRetVal != null && adGroupRetVal.value != null &&
              adGroupRetVal.value.Length > 0) {
            AdGroup updatedAdGroup = adGroupRetVal.value[0];
            Console.WriteLine("Ad group with name = \"{0}\", id = \"{1}\" and status = \"{2}\" " +
                "was updated for the experiment.\n", updatedAdGroup.name, updatedAdGroup.id,
                updatedAdGroup.status);
          } else {
            Console.WriteLine("No ad groups were updated.");
          }

          // Set ad group criteria for the experiment.
          Criterion criterion = new Criterion();
          criterion.id = criterionId;

          BiddableAdGroupCriterion adGroupCriterion = new BiddableAdGroupCriterion();
          adGroupCriterion.adGroupId = adGroupId;
          adGroupCriterion.criterion = criterion;

          // Create experiment bid multiplier rule that will modify criterion bid
          // for the experiment.
          ManualCPCAdGroupCriterionExperimentBidMultiplier bidMultiplier =
              new ManualCPCAdGroupCriterionExperimentBidMultiplier();
          bidMultiplier.maxCpcMultiplier = new BidMultiplier();
          bidMultiplier.maxCpcMultiplier.multiplier = 1.5;

          // Set experiment data to the criterion.
          BiddableAdGroupCriterionExperimentData adGroupCriterionExperimentData =
              new BiddableAdGroupCriterionExperimentData();
          adGroupCriterionExperimentData.experimentId = experimentId;
          adGroupCriterionExperimentData.experimentDeltaStatus = ExperimentDeltaStatus.MODIFIED;
          adGroupCriterionExperimentData.experimentBidMultiplier = bidMultiplier;

          adGroupCriterion.experimentData = adGroupCriterionExperimentData;

          // Create the operation.
          AdGroupCriterionOperation adGroupCriterionOperation = new AdGroupCriterionOperation();
          adGroupCriterionOperation.operand = adGroupCriterion;
          adGroupCriterionOperation.@operator = Operator.SET;

          // Update the ad group criteria.
          AdGroupCriterionReturnValue adGroupCriterionRetVal = adGroupCriterionService.mutate(
              new AdGroupCriterionOperation[] {adGroupCriterionOperation});

          // Display the results.
          if (adGroupCriterionRetVal != null && adGroupCriterionRetVal.value != null &&
              adGroupCriterionRetVal.value.Length > 0) {
            AdGroupCriterion updatedAdGroupCriterion = adGroupCriterionRetVal.value[0];
            Console.WriteLine("Ad group criterion with ad group id = \"{0}\", criterion id = "
                + "\"{1}\" and type = \"{2}\" was updated for the experiment.\n",
                updatedAdGroupCriterion.adGroupId, updatedAdGroupCriterion.criterion.id,
                updatedAdGroupCriterion.criterion.CriterionType);
          } else {
            Console.WriteLine("No ad group criteria were updated.");
          }
        } else {
          Console.WriteLine("No experiments were added.");
        }
      } catch (Exception ex) {
        throw new System.ApplicationException("Failed to add experiment.", ex);
      }
    }
    /// <summary>
    /// Adds an experiment.
    /// </summary>
    /// <param name="user">The user.</param>
    /// <param name="campaignId">The campaign id.</param>
    /// <param name="adGroupId">The ad group id.</param>
    /// <param name="criterionId">The criterion id.</param>
    /// <returns>The experiment id.</returns>
    public long AddExperiment(AdWordsUser user, long campaignId, long adGroupId, long criterionId) {
      // Get the ExperimentService.
      ExperimentService experimentService =
          (ExperimentService) user.GetService(AdWordsService.v201409.ExperimentService);

      // Get the AdGroupService.
      AdGroupService adGroupService =
          (AdGroupService) user.GetService(AdWordsService.v201409.AdGroupService);

      // Get the AdGroupCriterionService.
      AdGroupCriterionService adGroupCriterionService =
          (AdGroupCriterionService) user.GetService(AdWordsService.v201409.AdGroupCriterionService);

      // Create the experiment.
      Experiment experiment = new Experiment();
      experiment.campaignId = campaignId;
      experiment.name = "Interplanetary Cruise #" + GetTimeStamp();
      experiment.queryPercentage = 10;
      experiment.startDateTime = DateTime.Now.AddDays(1).ToString("yyyyMMdd HHmmss");

      // Create the operation.
      ExperimentOperation experimentOperation = new ExperimentOperation();
      experimentOperation.@operator = Operator.ADD;
      experimentOperation.operand = experiment;

      // Add the experiment.
      ExperimentReturnValue experimentRetVal = experimentService.mutate(
          new ExperimentOperation[] {experimentOperation});

      return experimentRetVal.value[0].id;
    }