How to set validation method in Google spreadsheets API

Question

I am confused about the new Google Sheets API v4. My question is: how can I set validation rules for specified column(s) in spreadsheet? There is no useful tutorial with des

Answer 1

The DataValidationRule object would look like the following:

"rule": {
  "condition": {
    "type": "ONE_OF_LIST",
    "values": [
      { userEnteredValue: "Yes"},
      { userEnteredValue: "No"}
    ],
  },
  "inputMessage": "",
  "strict": true,
  "showCustomUi": true,
}

You want to use rule.condition.type ONE_OF_LIST and then enter the rule.condition.values you want in the list. showCustomUi will show the dropdown

A full example using google apps script from the Sheets script editor:

function setDataVal () {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheets()[0];

  var validation = {
    "setDataValidation": {
      "range": {
        "sheetId": sheet.getSheetId(),
        "startRowIndex": 1,
        "endRowIndex": 5,
        "startColumnIndex": 1,
        "endColumnIndex": 5,
      },  
      "rule": {
        "condition": {
          "type": "ONE_OF_LIST",
          "values": [
            { userEnteredValue: "Yes"},
            { userEnteredValue: "No"}
          ],
        },
        "inputMessage": "",
        "strict": true,
        "showCustomUi": true,
      } 
    },
  }

  var req = {
    "requests": [validation],
    "includeSpreadsheetInResponse": false,
  }

  Sheets.Spreadsheets.batchUpdate(req, ss.getId())
}

• Sheets API advanced service will have to be enabled