Question

This one should be an easy yes or no. Is it possible to paste data validation only with Google Apps Script?

What I want to do is have the code copy the data validation from the row above the active cell, then paste the data validation into the row of the active cell.

I tried copyTo:

function updateFormat() {
  var rowNumber = SpreadsheetApp.getActiveSpreadsheet().getActiveSelection().getRow();
  var rowAbove = rowNumber -1 ;
  var targetRange = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getRange(rowNumber, 1, 1, 36);      
  var templateRange = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().getRange(rowAbove, 1, 1, 36);

  templateRange.copyTo(targetRange);
}

but–obviously–that copied the data validation and the contents of the row above, which is not the goal.

Any ideas?

Thanks in advance!

Answer 1

Adding the optArgument {formatOnly:true} works (See Ref). So

templateRange.copyTo(targetRange);

becomes

templateRange.copyTo(targetRange, {formatOnly:true});

I’ve refactored your code slightly and tested using:

function updateFormat() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var rowNumber = sheet.getActiveSelection().getRow();
  var rowAbove = rowNumber -1 ;
  var maxCols = sheet.getMaxColumns();
  var rangeToCopy = sheet.getRange(rowAbove, 1, 1, maxCols);
  rangeToCopy.copyTo(sheet.getRange(rowNumber, 1, 1, maxCols), {formatOnly:true});
}