---
title: Pipe Answers from Dynamic Matrix or Panel
product: Form Library
description: Learn how to implement answer piping from a dynamic matrix or panel and show given answers as choice options in follow-up questions. View the demo to see code example for JavaScript.
framework: Vue 3
source: https://surveyjs.io/form-library/examples/pipe-answers-from-dynamic-matrix-or-panel/vue3js
index: https://surveyjs.io/form-library/examples/overview.md
---

# Pipe Answers from Dynamic Matrix or Panel (Vue 3)

You can populate the choice options of selection-based question types (Single- and Multi-Select Dropdown, Checkboxes, Radio Button Group) with answers copied from other selection-based question types (see the [Carry Forward Responses](/form-library/examples/survey-carry-forward/) demo). This example demonstrates a more advanced use case, in which choices are dynamically sourced from cell values of Dynamic Matrix and question values in Dynamic Panel.

Each choice item consists of a value saved in survey results and a text displayed in the UI. To construct a choice item, specify the following properties for a choice-based question:

- [`choicesFromQuestion`](https://surveyjs.io/form-library/documentation/api-reference/checkbox-question-model#choicesFromQuestion)\
The `name` of a Dynamic Matrix or Dynamic Panel.

- [`choiceValuesFromQuestion`](https://surveyjs.io/form-library/documentation/api-reference/checkbox-question-model#choiceValuesFromQuestion)\
The `name` of a matrix column or dynamic panel question that supplies choice values to be saved in survey results.

- [`choiceTextsFromQuestion`](https://surveyjs.io/form-library/documentation/api-reference/checkbox-question-model#choiceTextsFromQuestion)\
The `name` of a matrix column or dynamic panel question that supplies choice texts to display in the UI. If this property is `undefined`, choice values are both used as display texts and saved in survey results.

## Files

### `public/index.html`

```html
<div id="app" style="position: absolute; top: 0; left: 0; right: 0; bottom: 0; height:100%"></div>
```

### `src/App.vue`

```html
<template>
    <SurveyComponent :model="survey" />
</template>
<script setup lang="ts">
    import { Model } from "survey-core";
    import { SurveyComponent } from "survey-vue3-ui";
    import "survey-core/survey-core.min.css";
    import "./index.css";
    import { json } from "./json";

    const survey = new Model(json);
    survey.onComplete.add((sender, options) => {
        console.log(JSON.stringify(sender.data, null, 3));
    });
</script>
```

### `src/index.css`

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

### `src/json.ts`

```ts
export const json = {
  "elements": [
    {
      "type": "panel",
      "name": "workshopPanel",
      "elements": [
        {
          "type": "matrixdynamic",
          "name": "workshopList",
          "title": "Available Workshops",
          "description": "This table collects information about workshops in which attendees are interested. Users can add new rows to specify their preferences.",
          "defaultValue": [
            {
              "workshopName": "Creative Writing for Beginners",
              "timeSlot": "afternoon"
            },
            {
              "workshopName": "Introduction to Digital Photography",
              "timeSlot": "evening"
            },
            {
              "workshopName": "Healthy Cooking and Nutrition",
              "timeSlot": "morning"
            }
          ],
          "columns": [
            {
              "name": "workshopName",
              "title": "Workshop Name"
            },
            {
              "name": "timeSlot",
              "title": "Preferred Time Slot",
              "cellType": "dropdown",
              "choices": [
                {
                  "value": "morning",
                  "text": "Morning (9:00 AM - 12:00 PM)"
                },
                {
                  "value": "afternoon",
                  "text": "Afternoon (1:00 PM - 4:00 PM)"
                },
                {
                  "value": "evening",
                  "text": "Evening (5:00 PM - 8:00 PM)"
                }
              ]
            }
          ],
          "cellType": "text"
        },
        {
          "type": "dropdown",
          "name": "favioriteWorkshop",
          "title": "Which workshop are you most excited to attend?",
          "choicesFromQuestion": "workshopList",
          "choiceValuesFromQuestion": "workshopName"
        }
      ]
    },
    {
      "type": "panel",
      "name": "sessionPreferencesPanel",
      "elements": [
        {
          "type": "paneldynamic",
          "name": "sessionPreferences",
          "title": "Upcoming Sessions",
          "defaultValue": [
            {
              "sessionInformation": "Tech Innovations in AI",
              "sessionDescription": "Deep dive into the latest advancements in artificial intelligence."
            },
            {
              "sessionInformation": "Digital Marketing Strategies",
              "sessionDescription": "Discover effective digital marketing practices."
            },
            {
              "sessionInformation": "Sustainable Tech Solutions",
              "sessionDescription": "Explore innovations for a greener tomorrow."
            }
          ],
          "templateElements": [
            {
              "type": "text",
              "name": "sessionInformation",
              "title": "Session Information"
            },
            {
              "type": "comment",
              "name": "sessionDescription",
              "title": "Description",
              "maxLength": 100,
              "rows": 2
            }
          ]
        },
        {
          "type": "ranking",
          "name": "prefferedSessions",
          "title": "Rank the following sessions in order of preference:",
          "choicesFromQuestion": "sessionPreferences",
          "choiceValuesFromQuestion": "sessionInformation"
        }
      ]
    }
  ],
  "title": "Conference Attendee Survey"
};
```

### `src/main.ts`

```ts
import { createApp } from "vue";
import App from "./App.vue";

const app = createApp(App);
app.mount("#app");
```

### `src/shims-vue.d.ts`

```ts
/* eslint-disable */
declare module "*.vue" {
    import type { DefineComponent } from "vue"
    const component: DefineComponent<{}, {}, any>
    export default component
}
```

### `src/theme.ts`

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

### `.eslintrc.js`

```js
module.exports = {
    root: true,
    env: {
        node: true
    },
    extends: [
        "plugin:vue/vue3-essential",
        "eslint:recommended",
        "@vue/typescript/recommended",
        "@vue/prettier",
        "@vue/prettier/@typescript-eslint"
    ],
    parserOptions: {
        ecmaVersion: 2020
    },
    rules: {
        "no-console": process.env.NODE_ENV === "production" ? "warn" : "off",
        "no-debugger": process.env.NODE_ENV === "production" ? "warn" : "off"
    },
    overrides: [
        {
            files: [
                "**/__tests__/*.{j,t}s?(x)",
                "**/tests/unit/**/*.spec.{j,t}s?(x)"
            ],
            env: {
                jest: true
            }
        }
    ]
};
```

### `babel.config.js`

```js
module.exports = {
  presets: ["@vue/cli-plugin-babel/preset"]
};
```

### `package.json`

```json
{
  "name": "surveyjs-library-vue3",
  "version": "0.1.0",
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "core-js": "^3.6.5",
    "tslib": "2.6.1",
    "vue": "^3.4.1",
    "survey-core": "latest",
    "survey-vue3-ui": "latest",
    "vue-router": "^4.0.0-0",
    "vuex": "^4.0.0-0"
  },
  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^2.33.0",
    "@typescript-eslint/parser": "^2.33.0",
    "@vue/cli-plugin-babel": "~4.5.0",
    "@vue/cli-plugin-eslint": "~4.5.0",
    "@vue/cli-plugin-pwa": "~4.5.0",
    "@vue/cli-plugin-router": "~4.5.0",
    "@vue/cli-plugin-typescript": "~4.5.0",
    "@vue/cli-plugin-vuex": "~4.5.0",
    "@vue/cli-service": "~4.5.0",
    "@vue/compiler-sfc": "^3.0.0",
    "@vue/eslint-config-prettier": "^6.0.0",
    "@vue/eslint-config-typescript": "^5.0.2",
    "@vue/test-utils": "^2.0.0-0",
    "eslint": "^6.7.2",
    "eslint-plugin-prettier": "^3.1.3",
    "eslint-plugin-vue": "^7.0.0-0",
    "node-sass": "^4.12.0",
    "prettier": "^1.19.1",
    "sass-loader": "^8.0.2",
    "typescript": "~3.9.3"
  }
}
```

### `tsconfig.json`

```json
{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "baseUrl": ".",
    "types": [
      "webpack-env",
      "jest"
    ],
    "paths": {
      "@/*": [
        "src/*"
      ]
    },
    "lib": [
      "esnext",
      "dom",
      "dom.iterable",
      "scripthost"
    ]
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx",
    "src/**/*.vue",
    "tests/**/*.ts",
    "tests/**/*.tsx"
  ],
  "exclude": [
    "node_modules"
  ]
}
```

## Other Frameworks

- [Angular](https://surveyjs.io/form-library/examples/pipe-answers-from-dynamic-matrix-or-panel/angular.md)
- [React](https://surveyjs.io/form-library/examples/pipe-answers-from-dynamic-matrix-or-panel/reactjs.md)
- [jQuery](https://surveyjs.io/form-library/examples/pipe-answers-from-dynamic-matrix-or-panel/jquery.md)
- [Vanilla JS](https://surveyjs.io/form-library/examples/pipe-answers-from-dynamic-matrix-or-panel/vanillajs.md)