管理Excel图表的数据标签

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DataLabels对象,简单地移动,更新和格式化图表的数据标签。

|todo:image_alt_text|

管理图表的数据标签

使用 Aspose.Cells DataLabels 可简单地管理图表的数据标签。

下面的代码片段演示了如何管理数据标签:

// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
//Show value labels
chart.NSeries[0].DataLabels.ShowValue = true;
//Show series name labels
chart.NSeries[1].DataLabels.ShowSeriesName = true;
//Move labels to center
chart.NSeries[1].DataLabels.Position = LabelPositionType.Center;
// Save the file
workbook.Save("chart_datalabels.xlsx");

高级主题