管理Excel图表的标题
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在Excel图表中,有两种标题:
- 图表标题
- 轴标题
标题选项
Aspose.Cells还允许在运行时管理图表的标题,通过标题对象,您可以更改标题的文本、字体和填充格式。
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设置图表或坐标轴的标题
您可以使用Microsoft Excel在所见即所得的环境中设置图表及其轴的标题。Aspose.Cells还允许开发人员在运行时设置图表及其轴的标题。所有图表及其轴都包含一个Title属性,该属性可用于设置它们的标题,如下面的示例所示。
以下代码段演示了如何设置图表和轴的标题。
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// 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 directory if it is not already present. | |
bool IsExists = System.IO.Directory.Exists(dataDir); | |
if (!IsExists) | |
System.IO.Directory.CreateDirectory(dataDir); | |
// 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); | |
// Setting the foreground color of the plot area | |
chart.PlotArea.Area.ForegroundColor = Color.Blue; | |
// Setting the foreground color of the chart area | |
chart.ChartArea.Area.ForegroundColor = Color.Yellow; | |
// Setting the foreground color of the 1st SeriesCollection area | |
chart.NSeries[0].Area.ForegroundColor = Color.Red; | |
// Setting the foreground color of the area of the 1st SeriesCollection point | |
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan; | |
// Filling the area of the 2nd SeriesCollection with a gradient | |
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1); | |
// Setting the title of a chart | |
chart.Title.Text = "Title"; | |
// Setting the font color of the chart title to blue | |
chart.Title.Font.Color = Color.Blue; | |
// Setting the title of category axis of the chart | |
chart.CategoryAxis.Title.Text = "Category"; | |
// Setting the title of value axis of the chart | |
chart.ValueAxis.Title.Text = "Value"; | |
// Saving the Excel file | |
workbook.Save(dataDir + "book1.out.xls"); |