see values of stackedbarchart values when the mouse is on points

public void DrawDashboard()
        {
            SeriesMapping seriesMapping = new SeriesMapping { LegendLabel = "Alpha 0" };
            seriesMapping.ItemMappings.Add(new ItemMapping("Sector0", DataPointMember.YValue));
            seriesMapping.ItemMappings.Add(new ItemMapping("CellName", DataPointMember.XCategory));

            SeriesMapping seriesMapping1 = new SeriesMapping { LegendLabel = "Alpha 1" };
            seriesMapping1.ItemMappings.Add(new ItemMapping("Sector1", DataPointMember.YValue));
            seriesMapping1.ItemMappings.Add(new ItemMapping("CellName", DataPointMember.XCategory));

            //seriesMapping1.SeriesDefinition = new HorizontalStackedBarSeriesDefinition();
            SeriesMapping seriesMapping2 = new SeriesMapping { LegendLabel = "Beta 0" };
            seriesMapping2.ItemMappings.Add(new ItemMapping("Sector2", DataPointMember.YValue));
            seriesMapping2.ItemMappings.Add(new ItemMapping("CellName", DataPointMember.XCategory));
	
	    StackedBarSeriesDefinition horBar = new StackedBarSeriesDefinition();
	    seriesMapping2.SeriesDefinition = horBar;
            seriesMapping1.SeriesDefinition = horBar;
            seriesMapping.SeriesDefinition = horBar;
 	    
	    var seriesMappingcollection = new SeriesMappingCollection();

            seriesMappingcollection.Add(seriesMapping);
            seriesMappingcollection.Add(seriesMapping1);
            seriesMappingcollection.Add(seriesMapping2);

	    this.Mappings = seriesMappingcollection;

        }