---
title: Read-Only / Display Mode
product: Form Library
description: You can configure to display your form - both filled out and new - in protected display mode to disable its editing and prevent any unwanted changes. View a free demo example for JavaScript to learn more.
framework: Angular
source: https://surveyjs.io/form-library/examples/prevent-form-editing-with-read-only-mode/angular
index: https://surveyjs.io/form-library/examples/overview.md
---

# Read-Only / Display Mode (Angular)

Read-only mode enables you to display your surveys or forms without allowing users to modify them. This mode is useful if you want to let respondents review their answers before submitting them, prevent unintentional alterations in completed forms, or limit access to your form based on user permissions. In this demo, a survey is already set to read-only mode. You can use the "Enable read-only mode" checkbox in Settings to manage read-only mode at runtime.

If you want to enable read-only mode for your survey in code, set `SurveyModel`'s [`readOnly`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#readOnly) property to `true` in the survey JSON schema or in your JavaScript code. This example demonstrates the latter case.

## Files

### `src/app/components/json.ts`

```ts
export const json = {
  "pages": [{
    "elements": [{
      "type": "matrix",
      "name": "qualities",
      "title": "Please indicate if you agree or disagree with the following statements",
      "columns": [{
        "value": 5,
        "text": "Strongly agree"
      }, {
        "value": 4,
        "text": "Agree"
      }, {
        "value": 3,
        "text": "Neutral"
      }, {
        "value": 2,
        "text": "Disagree"
      }, {
        "value": 1,
        "text": "Strongly disagree"
      }],
      "rows": [{
        "value": "affordable",
        "text": "Product is affordable"
      }, {
        "value": "does-what-it-claims",
        "text": "Product does what it claims"
      }, {
        "value": "better-than-others",
        "text": "Product is better than other products on the market"
      },{
        "value": "easy-to-use",
        "text": "Product is easy to use"
      }]
    }, {
      "type": "rating",
      "name": "satisfaction-score",
      "title": "How satisfied are you with our product?",
      "minRateDescription": "Not satisfied",
      "maxRateDescription": "Completely satisfied"
    }, {
      "type": "rating",
      "name": "recommend",
      "visibleIf": "{satisfaction-score} > 3",
      "title": "How likely are you to recommend our product to a friend or co-worker?",
      "minRateDescription": "Will not recommend",
      "maxRateDescription": "I will recommend"
    }, {
      "type": "comment",
      "name": "suggestions",
      "title": "What would make you more satisfied with our product?"
    }]
  }, {
    "elements": [{
      "type": "radiogroup",
      "name": "price-comparison",
      "title": "Compared to our competitors, do you feel our product is:",
      "choices": [
        "Less expensive",
        "Priced about the same",
        "More expensive",
        "Not sure"
      ]
    }, {
      "type": "radiogroup",
      "name": "current-price",
      "title": "Do you feel our current price is merited by our product?",
      "choices": [
        "correct|Yes, the price is about right",
        "low|No, the price is too low for your product",
        "high|No, the price is too high for your product"
      ]
    }, {
      "type": "multipletext",
      "name": "price-limits",
      "title": "What is the highest and lowest price you would pay for a product like ours?",
      "items": [{
        "name": "highest",
        "title": "Highest"
      }, {
        "name": "lowest",
        "title": "Lowest"
      }]
    }]
  }, {
    "elements": [{
      "type": "text",
      "name": "email",
      "title": "Please leave your email address if you would like us to contact you."
    }]
  }]
};
```

### `src/app/components/survey.component.css`

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

### `src/app/components/survey.component.html`

```html
<survey [model]="model" style="position: absolute; top: 0; left: 0; right: 0; bottom: 0; height:100%"></survey>
```

### `src/app/components/survey.component.ts`

```ts
import { Component, OnInit } from "@angular/core";
import { Model } from "survey-core";
import { json } from "./json";
import "./survey.component.css";
import "survey-core/survey-core.min.css";

@Component({
    // tslint:disable-next-line:component-selector
    selector: "component-survey",
    templateUrl: "./survey.component.html",
    styleUrls: ["./survey.component.css"]
})
export class SurveyComponent implements OnInit {
    model: Model;
    ngOnInit() {
        const survey = new Model(json);
        survey.data = {
            "qualities": {
                "affordable": "3",
                "does-what-it-claims": "4",
                "better-than-others": "3",
                "easy-to-use": "5"
            },
            "satisfaction-score": "4",
            "recommend": "4",
            "suggestions": "24/7 support would help a lot.",
            "price-comparison": "Not sure",
            "current-price": "correct",
            "price-limits": {
                "highest": "450",
                "lowest": "200"
            },
            "email": "john.doe@example.org"
        };
        survey.readOnly = true;
        
        survey.onComplete.add((sender, options) => {
            console.log(JSON.stringify(sender.data, null, 3));
        });
        this.model = survey;
    }
}
```

### `src/app/components/theme.ts`

```ts
export const themeJson = {};
```

### `src/app/app.component.css`

```css

```

### `src/app/app.component.html`

```html
<component-survey></component-survey>
```

### `src/app/app.component.ts`

```ts
import { Component } from "@angular/core";

@Component({
    selector: "app-root",
    templateUrl: "./app.component.html",
    styleUrls: ["./app.component.css"]
})
export class AppComponent {
    title = "CodeSandbox";
}
```

### `src/app/app.module.ts`

```ts
import { BrowserModule } from "@angular/platform-browser";
import { NgModule } from "@angular/core";

import { AppComponent } from "./app.component";
import { SurveyModule } from "survey-angular-ui";
import { SurveyComponent } from "./components/survey.component";

@NgModule({
    declarations: [AppComponent, SurveyComponent],
    imports: [BrowserModule, SurveyModule],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }
```

### `src/environments/environment.prod.ts`

```ts
export const environment = {
    production: true
};
```

### `src/environments/environment.ts`

```ts
// The file contents for the current environment will overwrite these during build.
// The build system defaults to the dev environment which uses `environment.ts`, but if you do
// `ng build --env=prod` then `environment.prod.ts` will be used instead.
// The list of which env maps to which file can be found in `.angular-cli.json`.

export const environment = {
    production: false
};
```

### `src/index.html`

```html
<app-root></app-root>
```

### `src/main.ts`

```ts
import { enableProdMode } from "@angular/core";
import { platformBrowserDynamic } from "@angular/platform-browser-dynamic";

import { AppModule } from "./app/app.module";
import { environment } from "./environments/environment";

if (environment.production) {
    enableProdMode();
}

platformBrowserDynamic()
    .bootstrapModule(AppModule)
    .catch(err => console.log(err));
```

### `src/polyfills.ts`

```ts
/**
 * This file includes polyfills needed by Angular and is loaded before the app.
 * You can add your own extra polyfills to this file.
 *
 * This file is divided into 2 sections:
 *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
 *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
 *      file.
 *
 * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
 * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
 * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
 *
 * Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
 */

/***************************************************************************************************
 * BROWSER POLYFILLS
 */

/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/weak-map';
// import 'core-js/es6/set';

/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js';  // Run `npm install classlist.js`.

/** IE10 and IE11 requires the following for the Reflect API. */
// import 'core-js/es6/reflect';

/** Evergreen browsers require these. **/
// Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
import "core-js/proposals/reflect-metadata";

/**
 * Required to support Web Animations `@angular/platform-browser/animations`.
 * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
 **/
// import 'web-animations-js';  // Run `npm install web-animations-js`.

/***************************************************************************************************
 * Zone JS is required by default for Angular itself.
 */
import "zone.js/dist/zone"; // Included with Angular CLI.

/***************************************************************************************************
 * APPLICATION IMPORTS
 */
```

### `src/styles.css`

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

### `src/typings.d.ts`

```ts
/* SystemJS module definition */
declare var module: NodeModule;
interface NodeModule {
    id: string;
}
```

### `.angular-cli.json`

```json
{
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [ "assets", "favicon.ico" ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "prefix": "app",
      "styles": [ "styles.css" ],
      "scripts": [ ],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ]
}
```

### `_tsconfig.json`

```json
{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "allowSyntheticDefaultImports": true,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "resolveJsonModule": true,
    "target": "es2015",
    "module": "es2020",
    "lib": [
      "es2018",
      "dom"
    ]
  }
}
```

### `package.json`

```json
{
  "name": "surveyjs-angular",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "14.1.1",
    "@angular/cdk": "14.1.1",
    "@angular/common": "14.1.1",
    "@angular/compiler": "14.1.1",
    "@angular/core": "14.1.1",
    "@angular/forms": "14.1.1",
    "@angular/platform-browser": "14.1.1",
    "@angular/platform-browser-dynamic": "14.1.1",
    "@angular/router": "14.1.1",
    "core-js": "3.6.4",
    "rxjs": "6.5.4",
    "survey-core": "latest",
    "survey-angular-ui": "latest",
    "tslib": "1.13.0",
    "zone.js": "0.11.7"
  },
  "devDependencies": {
    "@angular/cli": "1.6.6",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/core-js": "0.9.46",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "3.9.7"
  },
  "keywords": [ "angular", "surveyjs" ],
  "description": "SurveyJS-Angular example project"
}
```

## Other Frameworks

- [React](https://surveyjs.io/form-library/examples/prevent-form-editing-with-read-only-mode/reactjs.md)
- [Vue 3](https://surveyjs.io/form-library/examples/prevent-form-editing-with-read-only-mode/vue3js.md)
- [jQuery](https://surveyjs.io/form-library/examples/prevent-form-editing-with-read-only-mode/jquery.md)
- [Vanilla JS](https://surveyjs.io/form-library/examples/prevent-form-editing-with-read-only-mode/vanillajs.md)