AdWords API

ReportDefinition job = new ReportDefinition();
            job.reportType = ReportDefinitionReportType.AD_PERFORMANCE_REPORT;
 
            var selector = new Selector();
            selector.fields = new[] {"CampaignId", "AdGroupId", "Id", "Impressions",
                                         "Cost", "Clicks", "AveragePosition", "Conversions", "ConversionRate", "Date"};
 
            selector.dateRange = new DateRange()
            {
                max = todate.ToString("yyyyMMdd"),
                min = fromdate.ToString("yyyyMMdd")
            };
 
            job.downloadFormat = DownloadFormat.GZIPPED_XML;
            job.dateRangeType = ReportDefinitionDateRangeType.CUSTOM_DATE;
 
            job.reportName = "temporary report for download data";
            job.selector = selector;
 
            return job;