How to get started easily with Syncfusion Angular 11 Multi Select?

A quick start project that helps you to create an Angular 11 Multi Select Dropdown with minimal code configuration.

The following section explains the steps required to create a simple Angular 11 Multi Select component.

Project Pre-requisites

Make sure that you have the compatible versions of Angular in your machine before starting to work on this project.

• Node.js (Latest Version)
• Angular 11
• Angular CLI
• Typescript 4+
• Visual studio Code for editor

Introduction

The Angular 11 MultiSelect Dropdown used in this project is created from the Syncfusion `ej2-angular-dropdowns` package. You can simply define it as <ejs-multiselect> within the template.

Dependencies

Before starting with this project, the Angular 11 Multi Select Dropdown requires to add the Syncfusion `ej2-angular-dropdowns` package from npmjs, which are distributed in npm as @syncfusion scoped packages.

Creating Angular Project

To create the Angular project using the Angular CLI tool, follow the steps.

1. Install the Angular CLI application in your machine.

2. Now create a new Angular 11 project using the command `ng new` and navigate to that folder.

3. Install the ej2-angular-dropdowns package through the npm install command.

Adding Angular 11 MultiSelect Dropdown

You can add the Angular 11 MultiSelect Dropdown component by using the `ejs-multiselect` directive. The attributes used within this tag allow you to define other MultiSelect Dropdown functionalities. To add the Angular 11 MultiSelect Dropdown, follow the steps:

1. Import the MultiSelectAllModule into the app.module.ts file from the ej2-angular-dropdowns package.
2. Import and inject the other required modules within the providers section of app.module.ts.

[app.module.ts]

import { BrowserModule, } from '@angular/platform-browser';

import { MultiSelectAllModule } from '@syncfusion/ej2-angular-dropdowns';

 

import { NgModule } from '@angular/core';

import { FormsModule }   from '@angular/forms';

import { AppComponent } from './app.component';

 

@NgModule({

  declarations: [

    AppComponent

  ],

  imports: [

    BrowserModule, FormsModule, MultiSelectAllModule

  ],

  bootstrap: [AppComponent]

})

export class AppModule { }

3. Define the Angular MultiSelect Dropdown code within the app.component.html file which is mapped against the templateUrl option in the app.component.ts file.

[app.component.html]

<ejs-multiselect></ejs-multiselect>

4. Refer to the CDN link of CSS reference within the index.html file.

[index.html]

<link href="https://cdn.syncfusion.com/ej2/material.css" rel="stylesheet" />

5. Run the application with the ng serve command, and  an empty MultiSelectDropdown will be displayed on the browser. Now, you can load the MultiSelect Dropdown with data.

Screenshot

Loading data

You can populate the empty MultiSelect Dropdown with data by using the JSON data through the `datasource` property.

import { Component } from '@angular/core';

 

@Component({

  selector: 'app-root',

  templateUrl: './app.component.html',

  styleUrls: ['./app.component.css'],

})

export class AppComponent {

     // define the JSON of data

     public countries: { [key: string]: Object; }[] = [

        { Name: 'Australia', Code: 'AU' },

            { Name: 'Bermuda', Code: 'BM' },

            { Name: 'Canada', Code: 'CA' },

            { Name: 'Cameroon', Code: 'CM' },

            { Name: 'Denmark', Code: 'DK' },

            { Name: 'France', Code: 'FR' },

            { Name: 'Finland', Code: 'FI' },

            { Name: 'Germany', Code: 'DE' },          

        ];

        // maps the local data column to fields property

        public localFields: Object = { text: 'Name', value: 'Code' };

        // set the placeholder to MultiSelect Dropdown input element

        public localWaterMark: string = 'Select countries';

}

[app.component.html]

<ejs-multiselect id='localData' #local [dataSource]='countries' [fields]='localFields' [placeholder]='localWaterMark'></ejs-multiselect>

Screenshot

Setting initial select value on MultiSelect Dropdown

You can populate the empty MultiSelect Dropdown with value by binding the string data through the `value` property initially.

[app.component.ts]

import { Component } from '@angular/core';

 

@Component({

  selector: 'app-root',

  templateUrl: './app.component.html',

  styleUrls: ['./app.component.css'],

})

export class AppComponent {

         public value: string[] = ['AU'];

}

Now, assign this value to the `value` property of Angular MultiSelect Dropdown within the app.component.html file.

[app.component.html]

<ejs-multiselect id='localData' #local [dataSource]='countries' [fields]='localFields' [placeholder]='localWaterMark' [value]='value'

></ejs-multiselect>

Screenshot

Getting the selected value on form submit

By using the ngModel, you can get the value from the ngform submit.

[app.component.ts]

import { Component } from '@angular/core';

 

@Component({

  selector: 'app-root',

  templateUrl: './app.component.html',

  styleUrls: ['./app.component.css'],

})

export class AppComponent {

        onSubmit(form: NgForm): void {

            console.log(form.value.name);

          }

}

[app.component.html]

<form #form='ngForm' (ngSubmit)="onSubmit(form)">

    <div class="form-group"> 

        <ejs-multiselect id='localData' name='name'  #local='ngModel' [(value)]='value'[(ngModel)]='value' [dataSource]='countries' [fields]='localFields' [placeholder]='localWaterMark'></ejs-multiselect>

        <button type="submit" ejs-button>Submit</button>

    </div>

  </form>

Run the application with the command ng serve in the command prompt. You can view the Angular MultiSelect Dropdown output with the data and other settings.

Refer to our documentation and online samples for more features. If you have any queries, please let us know in comments below. You can also contact us through our Support forum or Direct-Trac. We are happy to assist you!