Getting Started with the Vue Drop down list Component in Vue 2

16 Dec 20239 minutes to read

This article provides a step-by-step guide for setting up a Vue 2 project using Vue-CLI and integrating the Syncfusion Vue Drop down list component using the Composition API / Options API.

To get start quickly with DropDownList Component using Vue CLI, you can check on this video:

Prerequisites

System requirements for Syncfusion Vue UI components

Setting up the Vue 2 project

To generate a Vue 2 project using Vue-CLI, use the vue create command. Follow these steps to install Vue CLI and create a new project:

npm install -g @vue/cli
vue create quickstart
cd quickstart
npm run serve

or

yarn global add @vue/cli
vue create quickstart
cd quickstart
yarn run serve

When creating a new project, choose the option Default ([Vue 2] babel, eslint) from the menu.

Vue 2 project

Once the quickstart project is set up with default settings, proceed to add Syncfusion components to the project.

Add Syncfusion Vue packages

Syncfusion packages are available at npmjs.com. To use Vue components, install the required npm package.

This article uses the Vue Drop down list component as an example. Install the @syncfusion/ej2-vue-dropdowns package by running the following command:

npm install @syncfusion/ej2-vue-dropdowns --save

or

yarn add @syncfusion/ej2-vue-dropdowns

Import Syncfusion CSS styles

You can import themes for the Syncfusion Vue component in various ways, such as using CSS or SASS styles from npm packages, CDN, CRG and Theme Studio. Refer to themes topic to know more about built-in themes and different ways to refer to themes in a Vue project.

In this article, the Material theme is applied using CSS styles, which are available in installed packages. The necessary Material CSS styles for the Drop down list component and its dependents were imported into the <style> section of src/App.vue file.

<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>

Add Syncfusion Vue component

Follow the below steps to add the Vue Drop down list component using Composition API or Options API:

1. First, import and register the Drop down list component in the script section of the src/App.vue file. If you are using the Composition API, you should add the setup attribute to the script tag to indicate that Vue will be using the Composition API.

<script setup>
import { DropDownListComponent as EjsDropdownlist } from "@syncfusion/ej2-vue-dropdowns";
</script>
<script>
import { DropDownListComponent } from "@syncfusion/ej2-vue-dropdowns";

export default {
  components: {
    'ejs-dropdownlist': DropDownListComponent
  }
}
</script>

2. In the template section, define the Drop down list component with the dataSource and [placeholder] (https://ej2.syncfusion.com/vue/documentation/api/drop-down-list/#placeholder) property.

<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
        <br>
        <ejs-dropdownlist id='dropdownlist' :dataSource='sportsData' placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>

Binding data source

After initialization, populate the DropDownList with data using the dataSource  property. Here, an array of string values is passed to the DropDownList component.

<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
        <br>
        <ejs-dropdownlist id='dropdownlist' :dataSource='sportsData' placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>

<script setup>
import { DropDownListComponent as EjsDropdownlist } from "@syncfusion/ej2-vue-dropdowns";
const sportsData = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
</script>
<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
        <br>
        <ejs-dropdownlist id='dropdownlist' :dataSource='sportsData' placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>
<script>
import { DropDownListComponent } from "@syncfusion/ej2-vue-dropdowns";
export default {
  components: {
    'ejs-dropdownlist': DropDownListComponent
  },
  data (){
    return {
      sportsData: ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis']
    }
  }
}

</script>

Here is the summarized code for the above steps in the src/App.vue file:

<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
      <br>
      <ejs-dropdownlist id='dropdownlist' :dataSource='sportsData' placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>
<script setup>
import { DropDownListComponent as EjsDropdownlist } from "@syncfusion/ej2-vue-dropdowns";

const sportsData = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>
<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
      <br>
      <ejs-dropdownlist id='dropdownlist' :dataSource='sportsData' placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>
<script>
import { DropDownListComponent } from "@syncfusion/ej2-vue-dropdowns";

export default {
  name: "App",
  components: {
    'ejs-dropdownlist': DropDownListComponent
  },
  data() {
    return {
      sportsData: ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis']
    }
  }
}

</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>

Run the project

To run the project, use the following command:

npm run serve

or

yarn run serve

Configure the Popup List

By default, the width of the popup list automatically adjusts according to the DropDownList input element’s width, and the height of the popup list has ‘300px’.

The height and width of the popup list can also be customized using the popupHeight  and popupWidth properties respectively

<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
      <br>
      <ejs-dropdownlist id='dropdownlist' popupHeight="200px" popupWidth="250px" :dataSource='sportsData'
        placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>
<script setup>
import { DropDownListComponent as EjsDropdownlist } from "@syncfusion/ej2-vue-dropdowns";

const sportsData = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];

</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>
<template>
  <div id="app">
    <div id='container' style="margin:50px auto 0; width:250px;">
      <br>
      <ejs-dropdownlist id='dropdownlist' popupHeight="200px" popupWidth="250px" :dataSource='sportsData'
        placeholder='Select a game'></ejs-dropdownlist>
    </div>
  </div>
</template>
<script>
import { DropDownListComponent } from "@syncfusion/ej2-vue-dropdowns";

export default {
  name: "App",
  components: {
    'ejs-dropdownlist': DropDownListComponent
  },
  data() {
    return {
      sportsData: ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
    }
  }
}

</script>
<style>
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-vue-dropdowns/styles/material.css";
</style>

You can refer to our Vue Dropdown List feature tour page for its groundbreaking feature representations. You can also explore our Vue Dropdown list example that shows how to render the Dropdown List in Vue.

See Also