/// <summary>
        /// Main method, to run this code example as a standalone application.
        /// </summary>
        /// <param name="args">The command line arguments.</param>
        public static void Main(string[] args)
        {
            SampleBase codeExample = new DeactivateCustomFields();

            Console.WriteLine(codeExample.Description);
            codeExample.Run(new DfpUser());
        }
 /// <summary>
 /// Main method, to run this code example as a standalone application.
 /// </summary>
 /// <param name="args">The command line arguments.</param>
 public static void Main(string[] args) {
   SampleBase codeExample = new DeactivateCustomFields();
   Console.WriteLine(codeExample.Description);
   codeExample.Run(new DfpUser());
 }
        /// <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 CustomFieldService.
              CustomFieldService customFieldService = (CustomFieldService) user.GetService(
              DfpService.v201403.CustomFieldService);

              // Create statement to select only active custom fields that apply to
              // line items.
              String statementText = "WHERE entityType = :entityType and isActive = :isActive LIMIT 500";
              Statement filterStatement = new StatementBuilder(statementText)
              .AddValue("entityType", CustomFieldEntityType.LINE_ITEM.ToString())
              .AddValue("isActive", true)
              .ToStatement();

              // Set defaults for page and offset.
              CustomFieldPage page = new CustomFieldPage();
              int offset = 0;
              int i = 0;
              List<string> customFieldIds = new List<string>();

              try {
            do {
              // Create a statement to page through custom fields.
              filterStatement.query = statementText + " OFFSET " + offset;

              // Get custom fields by statement.
              page = customFieldService.getCustomFieldsByStatement(filterStatement);

              if (page.results != null) {
            foreach (CustomField customField in page.results) {
              Console.WriteLine("{0}) Custom field with ID \"{1}\" and name \"{2}\" will be " +
                  "deactivated.", i, customField.id, customField.name);
              customFieldIds.Add(customField.id.ToString());
              i++;
            }
              }
              offset += 500;
            } while (offset < page.totalResultSetSize);

            Console.WriteLine("Number of custom fields to be deactivated: " + customFieldIds.Count);

            if (customFieldIds.Count > 0) {
              // Modify statement for action.
              filterStatement.query = "WHERE id IN (" + string.Join(", ", customFieldIds.ToArray()) +
              ")";

              // Create action.
              DeactivateCustomFields action = new DeactivateCustomFields();

              // Perform action.
              UpdateResult result = customFieldService.performCustomFieldAction(
              action, filterStatement);

              // Display results.
              if (result != null && result.numChanges > 0) {
            Console.WriteLine("Number of custom fields deactivated: " + result.numChanges);
              } else {
            Console.WriteLine("No custom fields were deactivated.");
              }
            }
              } catch (Exception ex) {
            Console.WriteLine("Failed to deactivate custom fields. Exception says \"{0}\"", ex.Message);
              }
        }