How to have only one box checked instead of two on Google Apps Script?

Question

function onEdit() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheets()[1];
  if (sheet.getActiveCell() = \"E11\"){
    sheet.getRange(\'E12\'         


        

Answer 1

The official GAS documentation contains lots of useful examples, so please refer to it whenever you are stuck. The example below might help you. This is for the scenario where both checkboxes are directly below each other (rows 1 & 2) in column 1.

function onEdit(e){

  //Checkbox coordinates. 
  var checkboxColumn = 1;
  var checkboxRows = [1, 2];
  var sheetName = "YOUR_SHEET_NAME";

  //Get the edited cell value 
  var value = e.value;

  //Get the old value
  var oldValue = e.oldValue;

  var editedRange = e.range;
  var editedSheet = editedRange.getSheet();

  if (editedSheet.getName() == sheetName && editedRange.getColumn() == checkboxColumn && checkboxRows.indexOf(editedRange.getRow()) != -1) {  

    //Get the row coordinate of the other checkbox
    var checkboxRow = checkboxRows.filter(function(rowNum) { return rowNum != editedRange.getRow();})[0];

    //set its value to the old value of the edited checkbox
    var range = editedSheet.getRange(checkboxRow, checkboxColumn).setValue(oldValue);

  }

}