使用GlobalizationSettings类为饼图的自定义小计标签和其他标签设置Node.js via C++

可能的使用场景

Aspose.Cells API公开了GlobalizationSettings类以应对用户希望在电子表格中为小计使用自定义标签的场景。此外，GlobalizationSettings类也可以用于修改渲染工作表或图表时的“其他”标签。

GlobalizationSettings类简介

GlobalizationSettings类目前提供以下3个方法，可以在自定义类中重写以获得所需的小计标签或为饼图的“其他”标签渲染自定义文本。

1. GlobalizationSettings.getTotalName(ConsolidationFunction)：获取函数的总名称。
2. GlobalizationSettings.getGrandTotalName(ConsolidationFunction)：获取函数的总计名称。

自定义小计标签

可以通过重写GlobalizationSettings.getTotalName(ConsolidationFunction)和GlobalizationSettings.getGrandTotalName(ConsolidationFunction)方法，使用GlobalizationSettings类来自定义小计标签，如下面所示。

const AsposeCells = require("aspose.cells.node");
const path = require("path");

// Defines a custom class derived from GlobalizationSettings class
class CustomSettings extends AsposeCells.GlobalizationSettings {
// Overrides the GetTotalName method
getTotalName(functionType) {
// Checks the function type used to add the subtotals
switch (functionType) {
// Returns custom value based on the function type used to add the subtotals
case AsposeCells.ConsolidationFunction.Average:
return "AVG";
// Handle other cases as per requirement
default:
return super.getTotalName(functionType);
}
}

// Overrides the GetGrandTotalName method
getGrandTotalName(functionType) {
// Checks the function type used to add the subtotals
switch (functionType) {
// Returns custom value based on the function type used to add the subtotals
case AsposeCells.ConsolidationFunction.Average:
return "GRD AVG";
// Handle other cases as per requirement
default:
return super.getGrandTotalName(functionType);
}
}
}

为了注入自定义标签，在将小计添加到工作表之前，需将WorkbookSettings.getGlobalizationSettings()属性赋值为上面定义的CustomSettings类的实例。

const AsposeCells = require("aspose.cells.node");
const path = require("path");
// Defines a custom class derived from GlobalizationSettings class
class CustomSettings extends AsposeCells.GlobalizationSettings {
// Overrides the GetTotalName method
getTotalName(functionType) {
// Checks the function type used to add the subtotals
switch (functionType) {
// Returns custom value based on the function type used to add the subtotals
case AsposeCells.ConsolidationFunction.Average:
return "AVG";
// Handle other cases as per requirement
default:
return super.getTotalName(functionType);
}
}

// Overrides the GetGrandTotalName method
getGrandTotalName(functionType) {
// Checks the function type used to add the subtotals
switch (functionType) {
// Returns custom value based on the function type used to add the subtotals
case AsposeCells.ConsolidationFunction.Average:
return "GRD AVG";
// Handle other cases as per requirement
default:
return super.getGrandTotalName(functionType);
}
}
}

try {
const path = require("path");
const AsposeCells = require("aspose.cells.node");

// The path to the documents directory.
const dataDir = path.join(__dirname, "data");
// Loads an existing spreadsheet containing some data
const workbook = new AsposeCells.Workbook(path.join(dataDir, "sample.xlsx"));

// Assigns the GlobalizationSettings property of the WorkbookSettings class to a custom class created
workbook.getSettings().setGlobalizationSettings(new CustomSettings());

// Accesses the 1st worksheet from the collection which contains data that resides in the cell range A2:B9
const sheet = workbook.getWorksheets().get(0);

// Adds Subtotal of type Average to the worksheet
sheet.getCells().subtotal(AsposeCells.CellArea.createCellArea("A2", "B9"), 0, AsposeCells.ConsolidationFunction.Average, [1]);

// Calculates Formulas
workbook.calculateFormula();

// Auto fits all columns
sheet.autoFitColumns();

// Saves the workbook on disc
workbook.save(path.join(dataDir, "output_out.xlsx"));
} catch (error) {
console.error(`Test failed: ${error.message}`);
throw error;
}

GlobalizationSettings类仅适用于添加新的小计。如果工作表已经包含小计，则无法修改其标签。