[]
Gets or sets the number format code for the data labels.
When the number format is linked to the source cells, the returned format code
reflects the linked cell format. If no custom format code is available, this method
returns "General".
string NumberFormat { get; set; }
Property NumberFormat As String
worksheet.Range["A1:B3"].Value = new object[,] {
{"Month", "Sales"},
{"Jan", 1200},
{"Feb", 1500}
};
worksheet.Range["B2:B3"].NumberFormat = "$#,##0";
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;
string numberFormat = series.DataLabels.NumberFormat;