图表点富文本自定义数据标签

您可以使用 Aspose.Cells 创建图表点的富文本自定义数据标签。 Aspose.Cells 提供了数据标签.字符()返回方法字体设置对象，可用于设置文本的字体属性，如颜色、粗体等。

图表点富文本自定义数据标签

以下代码访问第一个系列的第一个图表点，设置其文本，然后通过将其颜色设置为红色和粗体设置前 10 个字符的字体真的.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

// Create a workbook from source Excel file
Workbook workbook = new Workbook(dataDir + "sample.xlsx");

// Access first worksheet
Worksheet worksheet = workbook.Worksheets[0];

// Access the first chart inside the sheet
Chart chart = worksheet.Charts[0];

// Access the data label of first series first point
DataLabels dlbls = chart.NSeries[0].Points[0].DataLabels;

// Set data label text
dlbls.Text = "Rich Text Label";

// Set the font setting of the first 10 characters
FontSetting fntSetting = dlbls.Characters(0, 10);
fntSetting.Font.Color = Color.Red;
fntSetting.Font.IsBold = true;

// Save the workbook
workbook.Save(dataDir + "output_out.xlsx");