Google Adwords API：獲取SimpleMutateResult的運算符（添加/刪除/設置）操作

Question

如何獲得AdgroupCriterion的運算符（添加/刪除/設置）？

MutateJobService mutateJobService = (MutateJobService)user.GetService(AdWordsService.v201309.MutateJobService); 
    JobResult jobResult = mutateJobService.getResult(new BulkMutateJobSelector { includeStats = true, jobIds = jobIDs }); 
    SimpleMutateResult results = (SimpleMutateResult)jobResult.Item; 

    if (results.results != null) 
    { 
     for (int i = 0; i < results.results.Length; i++) 
     { 
      Operand operand = results.results[i]; 
      var operandType = operand.Item.GetType(); 
      if (operandType.BaseType.Name == "AdGroupCriterion") 
      { 
       AdGroupCriterion adGroupCriterion = (AdGroupCriterion)operand.Item; 
       // how to get operator (add/remove/set)? 
      } 
     } 
    } 

下面是如何創建的操作：

public static AdGroupCriterionOperation GetAdgroupNegativeKeywordOperation(Keyword keyword, long adgroupID, Google.Api.Ads.AdWords.v201309.Operator operat) 
{ 

    NegativeAdGroupCriterion criterion = new NegativeAdGroupCriterion 
    { 
     adGroupId = adgroupID, 
     criterion = keyword 
    }; 
    AdGroupCriterionOperation operation = new AdGroupCriterionOperation 
    { 
     @operator = operat, 
     operand = criterion 
    }; 

    return operation; 
} 

Answer 1

現在，它周圍的唯一方式，因爲我看到的，是存儲業務，當我創建工作，並匹配它的索引當我得到結果。

（@JeremyAube對Google Adwords API: Get criterion info on APIError的評論讓我得出這個結論。）