IChartDataLabels HasValue Property

<para>//Create worksheet</para><para>Workbook workbook = new Workbook();</para><para>workbook.LoadFromFile("Sample.xlsx");</para><para>Worksheet worksheet = workbook.Worksheets[0];</para><para>//Create chart and set range</para><para>Chart chart = worksheet.Charts.Add();</para><para>chart.DataRange = worksheet.Range["A1:C3"];</para><para>//Set chart type</para><para>chart.ChartType = ExcelChartType.ColumnClustered;</para><para>//Get the chart serie</para><para>IChartSerie serie = chart.Series[0];</para><para>//Get serie data labels</para><para>IChartDataLabels dataLabels = serie.DataPoints.DefaultDataPoint.DataLabels;</para><para>//Set the data label to show the values</para><para>dataLabels.HasValue = true;</para><para>//Save to file</para><para>workbook.SaveToFile("Chart.xlsx");</para>