更改 Google 表格中的下拉条目时弹出模态对话框

Question

我正在尝试创建一个脚本，当用户在下拉列表中选择特定值（例如“a”）时，会弹出一个特定的模式对话框。

我正在尝试此操作，但出现此错误：无法使用未定义的红色属性（读取“范围”）

`function onEdit(e) {
  if (e.range.getSheet().getName() != 'Sheet1') return;
  if (e.range.getA1Notation() != 'A1') return;  
  if (e.value != 'a') return;
SpreadsheetApp.getUi().showModalDialog(widget, "Practice Criteria");
 var widget = HtmlService.createHtmlOutput("<p><h1>Co-creating or Co-designing Core Elements of Activity Design</h1></p><p>1)Activity objectives, results, or interventions determined using a co-creation or co-design process.</p><p>2)Local or regional partners, partner government implementing entities, Innovation Incentive Authority  awardees, and/or stakeholders, including communities, participate in the co-design or co-creation process.</p><p>3)Co-design or Co-creation Process is Documented.</p><p>4)Co-creation or co-design process generated substantiv contributions to Activity Design.</p>");
}`

Answer 1

不能将未定义的属性设为红色（读取“范围”）

onEdit(e)

 函数是一个简单触发器，旨在在您手动编辑电子表格时自动运行。在这种情况下，事件对象

e

已正确填充。 不要通过脚本编辑器中的 ▷ Run 按钮运行代码。如果这样做，则不会填充事件参数

e

，从而导致您提到的错误。

代码的一个问题是它尝试在声明该变量之前引用

widget

。

另一个问题是简单触发器在受限上下文中运行，无法使用

.showModalDialog()

等 UI 方法。请改用可安装的触发器。创建触发器时需要对代码进行授权。

这是代码的改进（但未经测试）版本。

function installableOnEdit(e) {
  if (!e) throw new Error('Please do not run the onEdit(e) function in the script editor window. It runs automatically when you hand edit the spreadsheet. See https://stackoverflow.com/a/63851123/13045193.');
  if (e.value !== 'a'
    || e.range.getA1Notation() !== 'A1'
    || e.range.getSheet().getName() !== 'Sheet1') {
    return;
  }
  const widget = HtmlService.createHtmlOutput('<p><h1>Co-creating or Co-designing Core Elements of Activity Design</h1></p><p>1)Activity objectives, results, or interventions determined using a co-creation or co-design process.</p><p>2)Local or regional partners, partner government implementing entities, Innovation Incentive Authority  awardees, and/or stakeholders, including communities, participate in the co-design or co-creation process.</p><p>3)Co-design or Co-creation Process is Documented.</p><p>4)Co-creation or co-design process generated substantive contributions to Activity Design.</p>');
  SpreadsheetApp.getUi().showModalDialog(widget, 'Practice Criteria');
}