hello,

i have a fonction to render my chart, i try to add drilldown possibilitie but i didn't work: 

        public void RenderPieChart(Information model, UltraChart ToRenderPieChart)
        {
            //var wert = model.werte;
            //var Von = model.DatumVon;
            var preset = new ControlChartTyp(PieChart);

            ToRenderPieChart.ChartType = ChartType.PieChart;
            ToRenderPieChart.Data.ZeroAligned = true;
            ToRenderPieChart.LoadPreset(preset.GetFilePath(), true);

            //Setting Chart Drilldown
            ToRenderPieChart.Drill.Enabled = true;
            DrillElement pieChartDD = new DrillElement();
            ToRenderPieChart.Drill.DrillElements = new DrillElement[] {pieChartDD };
            ToRenderPieChart.Drill.DrillElements[0].DrillDown = new ChartDrillDown(ToRenderPieChart);

            NumericSeries series = new NumericSeries() { Label = "Pie Chart" };

            series.Points.Add(new NumericDataPoint(2, "Anzeigenblatt", false));
            series.Points.Add(new NumericDataPoint(4, "Fachzeitschrift", false));
            series.Points.Add(new NumericDataPoint(6, "Kundenzeitschrift", false));
            series.Points.Add(new NumericDataPoint(1, "Nachrichtenagentur", false));
            series.Points.Add(new NumericDataPoint(4, "Internet-Publikation", false));
            series.Points.Add(new NumericDataPoint(3, "Publikumszeitschrift", false));
            series.Points.Add(new NumericDataPoint(3, "Supplement", false));
            series.Points.Add(new NumericDataPoint(70, "Tageszeitung", false));
            series.Points.Add(new NumericDataPoint(2, "TV-Sendung", false));
            series.Points.Add(new NumericDataPoint(5, "Wochenzeitung", false));

            ToRenderPieChart.Series.Add(series);
            ToRenderPieChart.PieChart.OthersCategoryPercent = 0;
            ToRenderPieChart.PieChart.Labels.Font = new System.Drawing.Font("arial", 5);
            ToRenderPieChart.Legend.SpanPercentage = 30;
            ToRenderPieChart.PieChart.ColumnIndex = -1;
        }
and i have a class ChartDrillDown implement like in http://help.infragistics.com/Help/NetAdvantage/NET/2008.1/CLR2.0/html/Chart_Drilldown.html and the event in this class. The Event ist not raise

Thank you very much for your help