管理 Excel 图表的数据标签

数据标签是图表的重要组成部分。我们可以轻松知道每个系列的数值、百分比等

数据标签选项

Aspose.Cells 还允许在运行时管理图表的数据标签，使用数据标签对象，移动、更新和格式化图表的数据标签很简单。

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使用 Aspose.Cells 管理图表的数据标签很简单数据标签.

以下代码片段演示了如何管理 DataLabel：

	// Instantiating a Workbook object
	Workbook workbook = new Workbook();

	// Adding a new worksheet to the Workbook object
	int sheetIndex = workbook.getWorksheets().add();

	// Obtaining the reference of the newly added worksheet by passing its sheet index
	Worksheet worksheet = workbook.getWorksheets().get(sheetIndex);

	// Adding sample values to cells
	worksheet.getCells().get("A1").putValue("Series1");
	worksheet.getCells().get("A2").putValue(50);
	worksheet.getCells().get("A3").putValue(100);
	worksheet.getCells().get("A4").putValue(150);
	worksheet.getCells().get("B1").putValue("Series2");
	worksheet.getCells().get("B2").putValue(60);
	worksheet.getCells().get("B3").putValue(32);
	worksheet.getCells().get("B4").putValue(50);

	// Adding a chart to the worksheet
	int chartIndex = worksheet.getCharts().add(ChartType.COLUMN, 5, 0, 15, 5);

	// Accessing the instance of the newly added chart
	Chart chart = worksheet.getCharts().get(chartIndex);
	// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
	chart.getNSeries().add("A1:B3", true);
	//Show value labels
	chart.getNSeries().get(0).getDataLabels().setShowValue(true);
	//Show series name labels
	chart.getNSeries().get(1).getDataLabels().setShowSeriesName(true);
	//Move labels to center
	chart.getNSeries().get(1).getDataLabels().setPosition(LabelPositionType.CENTER);


	// Save the file
	workbook.save("chart_datalabels.xlsx");