Reset checkboxes to false - checkbox

Question

I have a Google spreadsheet where column A has checkboxes in each row. I have written a script to perform a function on all rows where the checkboxes are checked, but I want to add in at the end a reset function so that all checked boxes are unchecked again after the script is run.
I've tried using a for loop like this:
var dataRange = sheet.getRange('A3:A');
var values = dataRange.getValues();
for (var i = 0; i < values.length; i++) {
for (var j = 0; j < values[i].length; j++) {
if (values[i][j] == true) {
values[i].setValue(false);
}
}
}
But clearly this doesn't work as I get an error.
Does anyone know how this could be done?

Answer 1

How about this modification? I think that there are several solutions for your situation. So please think of this as one of them.
Modification points :
The reason of the issue is values[i].setValue(false);. values[i] is an array. Please use the range for setValue().
But to use setValue() in the for loop leads to higher cost. So in this modification, I used setValues().
Put "false" to values, if values[i][j] is "true".
Put the modified values to the sheet using setValues().
Modified script :
var dataRange = sheet.getRange('A3:A');
var values = dataRange.getValues();
for (var i = 0; i < values.length; i++) {
for (var j = 0; j < values[i].length; j++) {
if (values[i][j] == true) {
values[i][j] = false; // Modified
}
}
}
dataRange.setValues(values); // Added
Reference :
setValue()
setValues()
If this was not what you want, please tell me. I would like to modify it.

Answer 2

Update:
You can now use range.uncheck() directly on the range
Alternatively, Since you want to uncheck everything in the range (and all of the range have checkboxes in them), just do:
sheet.getRange('A3:A').setValue(false);
without checking/looping.

Answer 3

By highlighting all the cells in the range that you want to "uncheck" hold Crtl and double tap the spacebar.

Answer 4

The remove-check-marks method is "uncheck"…
var range = SpreadsheetApp.getActive().getRange('A21:A59');
range.uncheck();

Answer 5

This solution posted above does reset all checkboxes;
however, it also unexpectedly changes cells with the value of 1 in it to FALSE.
I want to make a script to reset checkboxes on ALL sheets...
function resetCheckBoxesAllSheets() {
var ss = SpreadsheetApp.getActive();
var allsheets = ss.getSheets();
for (var s in allsheets){
var sheet=allsheets[s]
var dataRange = sheet.getRange('A4:Z100');
var values = dataRange.getValues();
for (var i = 0; i < values.length; i++) {
for (var j = 0; j < values[i].length; j++) {
if (values[i][j] == true) {
values[i][j] = false; // Modified
}
}
}
dataRange.setValues(values);
}//end of sheets loop.
}// end of function...

Answer 6

I have set one checkbox instead of caption as shown in the picture
I write a script for check the data range and check uncheck all accordingly.
Here is the script.
function onEdit(e){
Logger.log('OnEdit');
var range = e.range;
var cl = range.getColumn();
var rw = range.getRow();
Logger.log('Row = ' + rw + ' Column = ' + cl);
var ActiveSheet = ss.getActiveSheet();
if(ActiveSheet.getName() === 'Companies' && rw == 1 && cl == 5){
var isAllTrue = ActiveSheet.getRange(rw, cl).getValue();
if(isAllTrue == true){
var Avals = ActiveSheet.getRange("A1:A").getValues();
var Alast = Avals.filter(String).length;
ActiveSheet.getRange(2, 5, Number(Alast-1)).setValue(true);
}
else
{
var Avals = ActiveSheet.getRange("A1:A").getValues();
var Alast = Avals.filter(String).length;
ActiveSheet.getRange(2, 5, Number(Alast-1)).setValue(false);
}
}
}
Change sheet name as per your need.
Note: create onedit trigger for same function if not trigger auto.