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       
(Showing Draft Content)

标记特定单元格

问题:怎么标记特定单元格


背景:

在Web端数据填报场景中,客户经常需要对单元格做一些标记,在设置数据时,可以根据这些标记来定位单元格,之后将查询而来的数据设置在目标单元格上。为了简化这一流程,SpreadJS和GCExcel都提供了数据绑定的概念。


但数据绑定需要客户按照数据绑定的相关设置对文件重新设计 ,有一定的使用成本。如果使用此前的方式,如何完成单元格的标记工作?

解决方案:

可以通过给单元格添加Tag标签或者自定义名称的方式进行标记


(1)标签

SpreadJS中,标签可以用于给单元格设置一些额外标记,可支持字符串、JSON等多种类型。标签可以设置在表单、区域、和单元格三种级别上,这里以单元格标签为例。右键单元格,在弹出的右键菜单中选择标签,即可为单元格设置标记。

141951zd8qzd85rrj11rur


SpreadJS中,标签可以用于给单元格设置一些额外标记,可支持字符串、JSON等多种类型。标签可以设置在表单、区域、和单元格三种级别上,这里以单元格标签为例。右键单元格,在弹出的右键菜单中选择标签,即可为单元格设置标记。

function linkCell(sheet) {
  let rowCount = sheet.getRowCount();
  let colCount = sheet.getColumnCount();
  for (let i = 0; i < rowCount; i++) {
    for (let j = 0; j < colCount; j++) {
      if (sheet.getTag(i, j) === "test") {
        return i + "-" + j;
      }
    }
  }
}
let cellInfo = linkCell(sheet).split("-");
sheet.setValue(cellInfo[0], cellInfo[1], "aaa");

但是,这种方式当文件导出Excel之后再导入SpreadJS中会失效,因为Excel中不具备标签的功能,导出后Tag会丢失。如果希望能在导入导出之后仍具备该功能,需要考虑用其它SpreadJS与Excel兼容的元素。


(2)自定义名称

Excel中使用名称管理器,可以用来处理工作簿中所有定义的名称和表名称。在SpreadJS中添加名称管理器,方式如下:


155452znzioi5r52q9aagq


添加完成之后,可以使用如下方式 ,根据名称管理器的名字定位单元格位置,之后设置内容:

let cus = sheet.getCustomName("aaa")
let range = cus.getExpression().getRange()
sheet.setValue(range.row,range.col,'test')

注意: 命名空间有作用域,可以作用在工作簿或者工作表上,使用时需要分清楚作用级别。getCustomeNames()可以获取当前作用级别下的所有名称管理器,根据该数组也可扩展出定位单元格位置的方法。

作者: GrapeCity China | 审核:RichardMa | 更新时间:2023.11.15