static void CreateAdGroups(
    long campaignId,
    string username,
    string password,
    string appToken,
    string devToken,
    string customerAccountId,
    string customerId,
    long accountId)
{
    CampaignManagementServiceClient service;
    AddAdGroupsRequest request;
    AddAdGroupsResponse response;

    // Create two ad groups.
    AdGroup[] adGroups = new AdGroup[2];

    // Specify values for the first ad group.
    adGroups[0] = new AdGroup();
    adGroups[0].Name = "Eyewear";
    adGroups[0].AdDistribution = AdDistribution.Search;
    adGroups[0].BiddingModel = BiddingModel.Keyword;
    adGroups[0].PricingModel = PricingModel.Cpc;

    // Set the ad group to run from today
    // through December 31, 2012, inclusive.
    adGroups[0].StartDate = new Date();
    adGroups[0].StartDate.Day = DateTime.Today.Day;
    adGroups[0].StartDate.Month = DateTime.Today.Month;
    adGroups[0].StartDate.Year = DateTime.Today.Year;
    adGroups[0].EndDate = new Date();
    adGroups[0].EndDate.Day = 31;
    adGroups[0].EndDate.Month = 12;
    adGroups[0].EndDate.Year = 2012;
    adGroups[0].LanguageAndRegion = "EnglishUnitedStates";
    adGroups[0].NegativeKeywords = null;
    adGroups[0].ExactMatchBid = new Bid();
    adGroups[0].ExactMatchBid.Amount = 10.25;
    adGroups[0].NegativeKeywords = new string[]
    {
        "dog eyewear",
        "cat eyewear", 
        "decorative eyewear"
    };

    // Specify values for the second ad group.
    adGroups[1] = new AdGroup();
    adGroups[1].Name = "Headwear";
    adGroups[1].AdDistribution = AdDistribution.Search;
    adGroups[1].BiddingModel = BiddingModel.Keyword;
    adGroups[1].PricingModel = PricingModel.Cpc;
    
    // Set the ad group to run from today
    // through December 31, 2012, inclusive.
    adGroups[1].StartDate = new Date();
    adGroups[1].StartDate.Day = DateTime.Today.Day;
    adGroups[1].StartDate.Month = DateTime.Today.Month;
    adGroups[1].StartDate.Year = DateTime.Today.Year;
    adGroups[1].EndDate = new Date();
    adGroups[1].EndDate.Day = 31;
    adGroups[1].EndDate.Month = 12;
    adGroups[1].EndDate.Year = 2012;
    adGroups[1].LanguageAndRegion = "EnglishUnitedStates";
    adGroups[1].NegativeKeywords = null;
    adGroups[1].ExactMatchBid = new Bid();
    adGroups[1].ExactMatchBid.Amount = 5.00;
    adGroups[1].PhraseMatchBid = new Bid();
    adGroups[1].PhraseMatchBid.Amount = .75;

    // Create an instance of the CampaignManagement Web service.
    service = new CampaignManagementServiceClient();

    request = new AddAdGroupsRequest();

    request.AdGroups = adGroups;
    request.ApplicationToken = appToken;
    request.CampaignId = campaignId;
    request.CustomerAccountId = customerAccountId;
    request.CustomerId = customerId;
    request.DeveloperToken = devToken;
    request.Password = password;
    request.UserName = username;

    try
    {
        response = service.AddAdGroups(request);
    }

    // Exception handling.

    // Capture any generic errors.
    catch (FaultException<AdApiFaultDetail> adApiFault)
    {
        // Get the AdApiFaultDetail object.
        AdApiFaultDetail detail = adApiFault.Detail;
        foreach (AdApiError error in detail.Errors)
        {
            Console.Write("Ad API error");
            Console.WriteLine(" '{0}' ({1}) encountered.",
                              error.Message,
                              error.Code);
        }
    }

    // Capture any service operation exceptions.
    catch (FaultException<ApiFaultDetail> apiFault)
    {
        ApiFaultDetail detail = apiFault.Detail;

        // Display service operation error information.
        foreach (OperationError opError in detail.OperationErrors)
        {
            Console.Write("Operation error");
            Console.WriteLine(" '{0}' ({1}) encountered.",
                              opError.Message,
                              opError.Code);
        }

        // Display batch error information.
        // The batchError.index property is the index to the 
        // campaign's array.
        foreach (BatchError batchError in detail.BatchErrors)
        {
            Console.Write("Batch error");
            Console.Write(" '{0}' ({1}) encountered",
                           batchError.Message,
                           batchError.ErrorCode);
            Console.Write(" for ad group named {0}.",
                          adGroups[batchError.Index].Name);
            Console.WriteLine(" Ad group array index = {0}.",
                              batchError.Index);

        }
    }

    // Capture exceptions on the client that are unrelated to
    // the adCenter API. An example would be an 
    // out-of-memory condition on the client.
    catch (Exception e)
    {
        Console.WriteLine("Error '{0}' encountered.",
            e.Message);
    }

    finally
    {
        service.Close();
    }
}