[]
Gets the IChartFormat object for the data label.
IChartFormat Format { get; }
ReadOnly Property Format As IChartFormat
worksheet.Range["A1:B3"].Value = new object[,] {
{"Month", "Sales"},
{"Jan", 10},
{"Feb", 20}
};
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
chart.SeriesCollection.Add(worksheet.Range["A1:B3"], RowCol.Columns);
ISeries series = chart.SeriesCollection[0];
series.HasDataLabels = true;
IDataLabel dataLabel = series.Points[0].DataLabel;
IChartFormat format = dataLabel.Format;
format.Fill.Color.RGB = Color.Red;