public void TestLineChart_Histogram()
        {
            const string fileName = @"d:\temp\ScottPlott_LineChart_Histogram.png";

            if (File.Exists(fileName))
            {
                File.Delete(fileName);
            }

            var data = new ChartData
            {
                Title      = "Histogram",
                Copyright  = "Testfirma",
                XLabelText = "Klasse",
                YLabelText = "Anzahl",

                FileName  = fileName,
                ChartType = ChartType.Histogram
            };

            TestHelper.LoadDefaultChartStyle(data, HighResolution);
            TestDataHelper.ChartSampleHistogram(UseDatabase, data);

            data.ChartStyle.XAxisNumberformat = "0.0000%";
            data.ChartStyle.YAxisNumberformat = "0.0000%";

            data.PropertiesToUseForChart.Add("XValue");
            data.PropertiesToUseForChart.Add("YValue1");

            //data.LabelsForSeries.Add("Kumulierter Anteil");


            var x = new ChartHandler
            {
                ChartData = data
            };

            x.Export();

            TestHelper.StartFile(fileName);
        }