/// <summary>
    /// Run the code example.
    /// </summary>
    /// <param name="user">The DFP user object running the code example.</param>
    public override void Run(DfpUser user) {
      // Get the WorkflowRequestService.
      WorkflowRequestService workflowRequestService =
          (WorkflowRequestService) user.GetService(DfpService.v201502.WorkflowRequestService);

      // Create a statement to select all workflow external condition requests.
      StatementBuilder statementBuilder = new StatementBuilder()
          .Where("type = :type")
          .OrderBy("id ASC")
          .Limit(StatementBuilder.SUGGESTED_PAGE_LIMIT)
          .AddValue("type", WorkflowRequestType.WORKFLOW_EXTERNAL_CONDITION_REQUEST.ToString());

      // Set default for page.
      WorkflowRequestPage page = new WorkflowRequestPage();

      try {
        do {
          // Get workflow requests by statement.
          page = workflowRequestService
              .getWorkflowRequestsByStatement(statementBuilder.ToStatement());

          if (page.results != null && page.results.Length > 0) {
            int i = page.startIndex;
            foreach (WorkflowRequest workflowRequest in page.results) {
              Console.WriteLine("{0}) Workflow external condition request with ID '{1}' for {2} " +
                  "with ID '{3}' was found.", i++, workflowRequest.id,
                  workflowRequest.entityType.ToString(), workflowRequest.entityId);
            }
          }
          statementBuilder.IncreaseOffsetBy(StatementBuilder.SUGGESTED_PAGE_LIMIT);
        } while (statementBuilder.GetOffset() < page.totalResultSetSize);
        Console.WriteLine("Number of results found: {0}", page.totalResultSetSize);
      } catch (Exception ex) {
        Console.WriteLine("Failed to get workflow requests by statement. Exception says \"{0}\"",
            ex.Message);
      }
    }
    /// <summary>
    /// Run the code example.
    /// </summary>
    /// <param name="user">The DFP user object running the code example.</param>
    public override void Run(DfpUser user) {
      // Get the WorkflowRequestService.
      WorkflowRequestService proposalLineItemService =
          (WorkflowRequestService) user.GetService(DfpService.v201502.WorkflowRequestService);

      // Set the ID of the proposal to trigger workflow external conditions for.c
      long proposalId = long.Parse(_T("INSERT_PROPOSAL_ID_HERE"));

      // Create a statement to select workflow external condition requests for a proposal.
      StatementBuilder statementBuilder = new StatementBuilder()
          .Where("entityId = :entityId and entityType = :entityType and type = :type")
          .OrderBy("id ASC")
          .Limit(StatementBuilder.SUGGESTED_PAGE_LIMIT)
          .AddValue("entityId", proposalId)
          .AddValue("entityType", WorkflowEntityType.PROPOSAL.ToString())
          .AddValue("type", WorkflowRequestType.WORKFLOW_EXTERNAL_CONDITION_REQUEST.ToString());

      // Set default for page.
      WorkflowRequestPage page = new WorkflowRequestPage();
      List<long> workflowRequestIds = new List<long>();

      try {
        do {
          // Get workflow requests by statement.
          page = proposalLineItemService.getWorkflowRequestsByStatement(
              statementBuilder.ToStatement());

          if (page.results != null && page.results.Length > 0) {
            int i = page.startIndex;
            foreach (WorkflowRequest workflowRequest in page.results) {
              Console.WriteLine("{0}) Workflow external condition request with ID '{1}'" +
                  " for {2} with ID '{3}' will be triggered.", i++, workflowRequest.id,
                  workflowRequest.entityType.ToString(), workflowRequest.entityId);
              workflowRequestIds.Add(workflowRequest.id);
            }
          }

          statementBuilder.IncreaseOffsetBy(StatementBuilder.SUGGESTED_PAGE_LIMIT);
        } while (statementBuilder.GetOffset() < page.totalResultSetSize);

        Console.WriteLine("Number of workflow external condition requests to be triggered: {0}",
            workflowRequestIds.Count);

        if (workflowRequestIds.Count > 0) {
          // Modify statement.
          statementBuilder.RemoveLimitAndOffset();

          // Create action.
          Google.Api.Ads.Dfp.v201502.TriggerWorkflowExternalConditionRequests action =
              new Google.Api.Ads.Dfp.v201502.TriggerWorkflowExternalConditionRequests();

          // Perform action.
          UpdateResult result = proposalLineItemService.performWorkflowRequestAction(action,
              statementBuilder.ToStatement());

          // Display results.
          if (result != null && result.numChanges > 0) {
            Console.WriteLine("Number of workflow external condition requests triggered: {0}",
                result.numChanges);
          } else {
            Console.WriteLine("No workflow external condition requests were triggered.");
          }
        }
      } catch (Exception e) {
        Console.WriteLine("Failed to tirgger workflow external condition requests. Exception " +
            "says \"{0}\"", e.Message);
      }
    }