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       
(Showing Draft Content)

获取合并区域数据

问题:如何获取合并区域数据


在实际项目中,用户上传的 Excel 文件会包含多个合并单元格,此时在使用 getArray() 获取区域数据时会出现 null 值。

或者使用 getText(i, j) 获取合并区域非首个单元格的内容时也会出现 null 值,但用户其实希望获取合并合并区域的任意一个单元格时都能返回整个合并区域的内容。

针对上述两种情况,在对合并单元格取数时需要进行特定的处理。

type=warning

Notice: 使用SpreadJS自动合并不存在上述的两点问题

实现思路

1. 获取合并区域任意单元格都返回合并区域的内容

判断当前单元格合并信息 getSpan 是否为 null,如果不为 null,getSpan() 会返回合并区域的

  • 起始行(row)

  • 起始列(col)

  • 合并行数(rowCount)

  • 合并列数(colCount)

此时需要调用 getText(row, col)

getSpan 为null,则说明当前单元格(i, j)没有合并,直接调用 getText(i, j) 即可。

function myGetText(sheet, row, col){
    let spanInfo = sheet.getSpan(row, col);
    if (spanInfo) {
        return sheet.getText(spanInfo.row, spanInfo.col);
    } else {
        return sheet.getText(row, col);
    }
}
2. 合并区域 getArray() 时 null 值的处理

实现思路: 首先获取到当前sheet页的所有合并单元格数组,之后依次去给合并区域赋值。

let spans = sheet.getSpans();
    for(let i = 0; i < spans.length; i++){
        let span = spans[i];
        for(let row = span.row; row < span.row + span.rowCount; row++) {
            for(let col = span.col; col < span.col + span.colCount; col++) {
                sheet.setText(row, col, sheet.getText(span.row, span.col));
            }
        }
}

作者: GrapeCity China | 审核:AlexZ | 更新时间:2023.09.26