How to Conditionally Format an Entire Row in Google Sheets Using Apps Script

Google Sheets supports highlighting an entire row based on a cell's value using native conditional formatting with a custom formula. For scenarios requiring more advanced automation or specific script-driven logic, Google Apps Script can be utilized to achieve dynamic row highlighting. The following script provides a method to conditionally format rows based on a boolean value in the first column.To implement this solution:

1. Open your Google Sheet.

2. Go to Extensions > Apps Script.

3. Replace any existing code in the script editor with the following script:

javascriptfunction onChange() {  var sheet  SpreadsheetApp.getActiveSheet();  var startRow  2;  var endRow  sheet.getLastRow();  for (var r  startRow; r < endRow; r++) {    colorRow(r);  }}function colorRow(r){  var sheet  SpreadsheetApp.getActiveSheet();  var dataRange  sheet.getRange(r, 1, 1, 6);  var data  dataRange.getValues();  var row  data[0];  if(row[0]  true){    dataRange.setBackgroundRGB(192, 255, 192);  } else {      dataRange.setBackgroundRGB(255, 255, 255);    }  SpreadsheetApp.flush();}function onEdit(event){  colorRow(event.source.getActiveRange().getRowIndex());}function onOpen(){  colorAll();}

1. Save the script.

2. The onEdit function will automatically trigger the colorRow function when a cell is edited, applying formatting based on the value in the first column of the edited row. The onOpen function attempts to call colorAll when the sheet is opened. The onChange function, which requires an installable trigger, iterates through rows from startRow to endRow and applies colorRow to each. Users may need to adjust startRow, endRow, the column index row[0], and the colorAll function definition to match their specific data structure and conditions.