---
title: Modify New Question
product: Survey Creator
description: Learn how to dynamically modify the properties of newly added questions using the onQuestionAdded event. Check out our free demo for JavaScript.
framework: jQuery
source: https://surveyjs.io/survey-creator/examples/dynamically-modify-newly-added-questions/jquery
index: https://surveyjs.io/survey-creator/examples/overview.md
---

# Modify New Question (jQuery)

Survey Creator raises an [`onQuestionAdded`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#onQuestionAdded) event when users add questions to a survey. You can handle this event to modify the questions on the fly. In this demo, the `onQuestionAdded` event is used to generate GUIDs and use them as question names.

## Implementation

A function that handles the `onQuestionAdded` event accepts an `options` object as the second parameter. The object's `question` property provides access to the question being added, while the `reason` property contains a string value indicating how the question was added: dragged from the Toolbox (`"DROPPED_FROM_TOOLBOX"`), created using the Add Question button (`"ADDED_FROM_PAGEBUTTON"`), duplicated (`"ELEMENT_COPIED"`), or converted from another question type (`"ELEMENT_CONVERTED"`). In this demo, the `onQuestionAdded` function changes the question's `name` property to a GUID and `title` property to a predefined value. These changes do not apply if the question is converted from another type, because in this case the question already has a GUID and a proper title.

```js
var questionCounter = 1;
creator.onQuestionAdded.add((_, options) => {
  if (options.reason === "ELEMENT_CONVERTED")
    return;
  
  const q = options.question;
  q.name = guid();
  q.title = "Question " + questionCounter;
  questionCounter++;
});
```

To ensure that users don't change the generated GUIDs, make the `name` property read-only using the `Serializer` API:

```js
import { Serializer } from "survey-core";
Serializer.findProperty("question", "name").readOnly = true;
```

Survey Creator uses question names in the UI. Now that the question names are GUIDs, they become hard to read and distinguish at a glance. To eliminate this disadvantage, enable the [`useElementTitles`](https://surveyjs.io/survey-creator/documentation/api-reference/icreatoroptions#useElementTitles) property when you instantiate Survey Creator. With this setting, the Survey Creator UI will use question titles instead of the names. 

```js
const creatorOptions = {
  // ...
  useElementTitles: true
}
```

## Similar Events

In addition to `onQuestionAdded`, Survey Creator raises other events that allow you to modify newly added survey elements dynamically. These events are handled similarly to `onQuestionAdded`.

| Event name | Raised when |
| ---------- | ----------- |
| [`onPanelAdded`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#onPanelAdded) | Raised when users add a panel to the survey. |
| [`onPageAdded`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#onPageAdded) | Raised when users add a page to the survey. |
| [`onMatrixColumnAdded`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#onMatrixColumnAdded) | Raised when users add a column to a [Multi-Select](https://surveyjs.io/form-library/documentation/api-reference/matrix-table-with-dropdown-list) or [Dynamic Matrix](https://surveyjs.io/form-library/documentation/api-reference/dynamic-matrix-table-question-model). |
| [`onItemValueAdded`](https://surveyjs.io/survey-creator/documentation/api-reference/survey-creator#onItemValueAdded) | Raised when users add a new item value (column, row, choice). |

## Files

### `public/index.html`

```html
<!-- Uncomment the following lines to enable Ace Editor in the JSON Editor tab -->
<!-- 
<script src="https://unpkg.com/ace-builds/src-min-noconflict/ace.js"></script>
<script src="https://unpkg.com/ace-builds/src-min-noconflict/ext-searchbox.js"></script>
<script src="https://unpkg.com/ace-builds/src-min-noconflict/theme-clouds_midnight.js"></script>
-->

<div id="surveyCreatorContainer" style="position: absolute; height: 100%; width: 100%"></div>
```

### `src/index.css`

```css
/* You can add your custom CSS here. */
```

### `src/index.js`

```js
import { SurveyCreator } from "survey-creator-js";
import "survey-core/survey.i18n";
import "survey-creator-core/survey-creator-core.i18n";
import { Serializer } from "survey-core";
import "survey-core/survey-core.css";
import "survey-creator-core/survey-creator-core.css";
import "./index.css";

import SurveyTheme from "survey-core/themes";
import { registerCreatorTheme } from "survey-creator-core";

registerCreatorTheme(SurveyTheme); // Add predefined Survey Creator UI themes

Serializer.findProperty("question", "name").readOnly = true;

function s4() {
    return Math.floor((1 + Math.random()) * 0x10000)
        .toString(16)
        .substring(1);
}

function guid() {    
    return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
        s4() + '-' + s4() + s4() + s4();
}

var questionCounter = 1;
const creator = new SurveyCreator({ useElementTitles: true });
creator.onQuestionAdded.add((_, options) => {
    if (options.reason === "ELEMENT_CONVERTED")
        return;
    
    const q = options.question;
    q.name = guid();
    q.title = "Question " + questionCounter;
    questionCounter++;
});
creator.render("surveyCreatorContainer");
```

### `package.json`

```json
{
  "dependencies": {
    "jquery": "latest",
    "survey-core": "latest",
    "survey-js-ui": "latest",
    "survey-creator-core": "latest",
    "survey-creator-js": "latest"
  },
  "devDependencies": {
    "react-scripts": "latest"
  }
}
```

## Other Frameworks

- [Angular](https://surveyjs.io/survey-creator/examples/dynamically-modify-newly-added-questions/angular.md)
- [React](https://surveyjs.io/survey-creator/examples/dynamically-modify-newly-added-questions/reactjs.md)
- [Vue 3](https://surveyjs.io/survey-creator/examples/dynamically-modify-newly-added-questions/vue3js.md)
- [Vanilla JS](https://surveyjs.io/survey-creator/examples/dynamically-modify-newly-added-questions/vanillajs.md)