public FileResult WOAvgCurrentToAnnualComparison() { var CurrentWOData = new WOData(WOMetricType.CurrentWOAvgDaysOpenByCategory, 1); var AnnualWOData = new WOData(WOMetricType.AnnualWOAvgDaysOpenByCategory, 1); var CombinedData = new WOData(); CombinedData.CollectionData.AddRange(CurrentWOData.CollectionData); CombinedData.CollectionDataName = "Current"; //displays on the legend... CombinedData.CollectionComparisonData.AddRange(AnnualWOData.CollectionData); CombinedData.ComparisonDataName = "History"; CombinedData.AlignComparisonDataSets(); var WOChart = new WOChart(WOChartType.Comparison, CombinedData, "Current to History WO Avg Days Open Comparison"); return (File(WOChart.chartStream.GetBuffer(), @"image/png")); }