获取行中最大列索引和列中最大行索引
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可能的使用场景
当你只需要操作某些行或列中的数据时,需要知道行和列的数据范围。Aspose.Cells for Node.js via C++提供了此功能。要获得某行的最大列索引,可以调用Row.getLastCell()和Row.getLastDataCell()方法,然后使用Cell.getColumn()方法获取最大列索引和最大数据列索引。但为了获取某列的最大行索引和最大行数据索引,你需要在该列创建一个范围,然后遍历该范围找到最后一个单元格,最后调用该单元格的Cell.getRow()方法。
Aspose.Cells for Node.js via C++提供以下属性和方法,帮助你实现目标。
获取行中的最大列索引和列中的最大行索引
此示例演示如何:
- 加载示例文件。
- 获取需要获取最大列索引和最大数据列索引的行。
- 调用单元格的Cell.getColumn()方法。
- 根据列创建一个范围。
- 获取迭代器并遍历范围。
- 调用单元格的Cell.getRow()方法。
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const AsposeCells = require("aspose.cells.node"); | |
const path = require("path"); | |
// The path to the documents directory. | |
const dataDir = path.join(__dirname, "data"); | |
const workbook = new AsposeCells.Workbook(dataDir +"sample.xlsx"); | |
const sheet = workbook.getWorksheets().get(0); | |
const cells = sheet.getCells(); | |
const row = cells.checkRow(1); | |
if (row != null) { | |
//get Maximum column index of Row which contains data or style. | |
console.log("Max column index in row: " + row.getLastCell().getColumn()); | |
//get Maximum column index of Row which contains data. | |
console.log("Max data column index in row: " + row.getLastDataCell().getColumn()); | |
} | |
// create the range of column B | |
const columnRange = cells.createRange(1, 1, true); | |
var max_row_index = cells.getMaxRow() + 1; | |
var maxRow = 0; | |
var maxDataRow = 0; | |
for (let row_index = 0; row_index < max_row_index; row_index++) | |
{ | |
var curr_cell = cells.get(row_index, 1); | |
if (curr_cell) | |
{ | |
if (curr_cell.getStringValue()) | |
{ | |
maxDataRow = curr_cell.getRow(); | |
} | |
if (curr_cell.getStringValue() || curr_cell.getHasCustomStyle()) | |
{ | |
maxRow = curr_cell.getRow(); | |
} | |
} | |
} | |
//Maximum row index of Column which contains data or style. | |
console.log("Max row index in Column: " + maxRow); | |
//Maximum row index of Column which contains data. | |
console.log("Max data row index in Column: " + maxDataRow); |