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Angular Bootstrap multiselect

Angular Multiselect - Bootstrap 4 & Material Design

Angular Bootstrap Multiselect is a component that allows users to tick multiple options from a collapsible list of values. Can be used in forms, menus, and surveys.

Its implementation is quite simple, and in exchange, it brings a lot of UX value.

Examples of Bootstrap Multiselect use include:

  • Ingredient choice within a pizza delivery system
  • Laptop hardware configuration in an online shop
  • Flight booking customization

Default multiselect



                <select class="custom-select" multiple>
                  <option selected>Open this select menu</option>
                  <option value="1">One</option>
                  <option value="2">Two</option>
                  <option value="3">Three</option>
                </select>

              

Material design MDB Pro component


          <div class="row">
            <div class="col-md-6">
              <mdb-select [options]="optionsSelect" [multiple]="true" [highlightFirst]="false" placeholder="Choose your option"></mdb-select>
              <label>Example label</label>
            </div>
          </div>
        

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

          @Component({
          selector: 'multiple-material-select-example',
          templateUrl: 'multiple-material-select.html',
          })
          export class MultipleMaterialSelectComponent implements OnInit {
          optionsSelect: Array<any>;

            ngOnInit() {
            this.optionsSelect = [
            { value: '1', label: 'Option 1' },
            { value: '2', label: 'Option 2' },
            { value: '3', label: 'Option 3' },
            ];
            }
            }
        

Multiselect with options groupsMDB Pro component


        <div class="row">
          <div class="col-md-6">
            <mdb-select [options]="groupOptionsSelect" [multiple]="true" [highlightFirst]="false" placeholder="Choose your option"></mdb-select>
            <label>Example label</label>
          </div>
        </div>
      

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

        @Component({
        selector: 'multiple-options-material-select-example',
        templateUrl: 'multiple-options-material-select.html',
        })

        export class MultipleOptionsMaterialSelectComponent implements OnInit {
        groupOptionsSelect: Array<any>;

          ngOnInit() {
          this.groupOptionsSelect = [
          { value: '', label: 'team 1', group: true },
          { value: '1', label: 'Option 1' },
          { value: '2', label: 'Option 2' },
          { value: '', label: 'team 2', group: true },
          { value: '3', label: 'Option 3' },
          { value: '4', label: 'Option 4' },
          ];
          }
          }
      

Disabled multiselect MDB Pro component

You can make your select unselectable, by adding [disabled]="disabled" to mdb-select.



        <div class="row">
          <div class="col-md-6">
            <mdb-select [options]="optionsSelect" [disabled]="disabled" [multiple]="true" [highlightFirst]="false" placeholder="Choose your option" label="Example label"></mdb-select>
          </div>
          <div class="col-md-6">
            <mdb-select [options]="disOptionsSelect"  [multiple]="true" [highlightFirst]="false" placeholder="Choose your option" label="Example label"></mdb-select>
          </div>
        </div>
      

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

        @Component({
        selector: 'disabled-material-select-example',
        templateUrl: 'disabled-material-select.html',
        })

        export class DisabledMaterialSelectComponent implements OnInit {

        optionsSelect: Array<any>;
          disabled: boolean = true;
          disOptionsSelect: Array<any>;

            ngOnInit() {
            this.optionsSelect = [
            { value: '1', label: 'Option 1' } ,
            { value: '2', label: 'Option 2' } ,
            { value: '3', label: 'Option 3' } ,
            ];
            this.disOptionsSelect = [
            { value: '1', label: 'Option 1' },
            { value: '2', label: 'Option 2' } ,
            { value: '3', label: 'Disabled option', disabled: true } ,
            ];
            }
            }
      

Update options dynamically MDB Pro component

To update multiselect options dynamically, note that the mdb-select component uses the Angular change detection mechanism. Since Angular only checks if the array reference has changed, the component will not detect a change when you add the new option using the push method:

this.selectOptions.push({ value: '4', label: 'Option 4' })

Instead you need to do the following:

this.selectOptions = [...this.selectOptions, { value: '4', label: 'Option 4'}]


        <div class="row">
          <div class="col-md-6">
            <mdb-select [options]="optionsSelect" [multiple]="true" [highlightFirst]="false" placeholder="Choose your option" label="Example label"></mdb-select>
          </div>
        </div>
      

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

        @Component({
        selector: 'update-options-select',
        templateUrl: './update-options-select.html'
        })
        export class AppComponent implements OnInit {

        optionsSelect: Array<any>;

          ngOnInit() {
          this.optionsSelect = [
          { value: '1', label: 'Option 1' },
          { value: '2', label: 'Option 2' },
          { value: '3', label: 'Option 3' },
          ];

          setTimeout(() => {
          this.optionsSelect = [...this.optionsSelect, { value: '4', label: 'Option 4' }];
          }, 3000);
          }

          }

      

Template-driven forms MDB Pro component

In this section, you will find information on how to use our multiselect component in template-driven forms.

Remember to import FormsModule into your app.module.ts file.

Preselected values

Bind in the two-way ngModel from component.html with the selectedValues in component.ts file


        <mdb-select [(ngModel)]="selectedValues" [multiple]="true" [highlightFirst]="false" [options]="dateOptionsSelect" placeholder="Choose time period"></mdb-select>
      

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

        @Component({
        selector: 'defaultvalue-multiselect',
        templateUrl: 'defaultvalue-multiselect.html',
        })

        export class DefaultValueMultiselectComponent implements OnInit {

        dateOptionsSelect= [
        { value: '1', label: 'Today', selected: true },
        { value: '2', label: 'Yesterday' },
        { value: '3', label: 'Last 7 days' },
        { value: '4', label: 'Last 30 days' },
        { value: '5', label: 'Last week' },
        { value: '6', label: 'Last month' }
        ];
        selectedValues = ['1', '2'];
      

Get selected values

Get an array of selected values with ngModelChange event, which fires every time you select an option.


        <mdb-select (ngModelChange)="getSelectedValues($event)" [(ngModel)]="selectedValues" [multiple]="true" [highlightFirst]="false" [options]="dateOptionsSelect"
          placeholder="Choose time period"></mdb-select>
      

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

        @Component({
        selector: 'getvalue-multiselect',
        templateUrl: 'getvalue-multiselect.html',
        })

        export class GetValueMultiselectComponent implements OnInit {

        dateOptionsSelect= [
        { value: '1', label: 'Today', selected: true },
        { value: '2', label: 'Yesterday' },
        { value: '3', label: 'Last 7 days' },
        { value: '4', label: 'Last 30 days' },
        { value: '5', label: 'Last week' },
        { value: '6', label: 'Last month' }
        ];
        selectedValues = ['1', '2'];

        getSelectedValues(event: any) {
        console.log('Selected value', event);
        }
      

Reactive forms MDB Pro component

In this section, you will find information on how to use our multiselect component in reactive forms.

Remember to import ReactiveFormsModule into your app.module.ts file.

Preselected values

Set default values in FormControl


<form [formGroup]="testForm">
  <div class="row">
    <div class="col-md-6">
      <mdb-select [options]="optionsSelect" [multiple]="true" [highlightFirst]="false" formControlName="testSelect" placeholder="Choose your option"></mdb-select>
      <label>Example label</label>
    </div>
  </div>
</form>
      

        import { Component, OnInit } from '@angular/core';
        import { FormGroup, FormControl } from '@angular/forms';

        @Component({
        selector: 'defaultvalue-multiselect',
        templateUrl: 'defaultvalue-multiselect.html',
        })

        export class DefaultValueMultiselectComponent implements OnInit {

          testForm: FormGroup;
          optionsSelect = [
            { value: '1', label: 'Option 1' },
            { value: '2', label: 'Option 2' },
            { value: '3', label: 'Option 3' },
          ];

          ngOnInit() {
            this.testForm = new FormGroup({
              testSelect: new FormControl(['1', '2'])
            });
          }
      

Get selected values

Get the selected values with the reactive forms valueChanged method.


<form [formGroup]="testForm">
  <div class="row">
    <div class="col-md-6">
      <mdb-select [options]="optionsSelect" [multiple]="true" [highlightFirst]="false" formControlName="testSelect" placeholder="Choose your option"></mdb-select>
      <label>Example label</label>
    </div>
  </div>
</form>
      

        import { Component, OnInit } from '@angular/core';
        import { FormGroup, FormControl } from '@angular/forms';

        @Component({
        selector: 'getvalue-multiselect',
        templateUrl: 'getvalue-multiselect.html',
        })

        export class GetValueMultiselectComponent implements OnInit {

          testForm: FormGroup;
          optionsSelect = [
            { value: '1', label: 'Option 1' },
            { value: '2', label: 'Option 2' },
            { value: '3', label: 'Option 3' },
          ];

          ngOnInit() {
            this.testForm = new FormGroup({
              testSelect: new FormControl('')
            });

            this.testForm.get('testSelect').valueChanges.subscribe( (value) => {
              console.log('Selected values:', value);
            });
          }
      

Outline version MDB Pro component

Use the [outline] input to make the Material Select outline like in Material 2.0.


        <mdb-select [outline]="true" [multiple]="true" [options]="optionsSelect" label="Choose your option"></mdb-select>
      

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

        @Component({
          selector: 'outline-select',
          templateUrl: 'outline-select.component.html',
        })

        export class OutlineSelectComponent {

          optionsSelect = [
            { value: '1', label: 'Option 1' },
            { value: '2', label: 'Option 2' },
            { value: '3', label: 'Option 3' },
          ];

        }
      
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Angular Multiselect - API

In this section you will find informations about required modules and available inputs, outputs, methods and events of multiselect component.


Modules used

In order to speed up your application, you can choose to import only the modules you actually need, instead of importing the entire MDB Angular library. Remember that importing the entire library, and immediately afterwards a specific module, is bad practice, and can cause application errors.

API Reference for MDB Angular Select:
// MDB Angular Pro
  import { WavesModule, SelectModule } from 'ng-uikit-pro-standard'
// Angular Animations Module
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations'

Components

MdbSelect

Selector: mdb-select

Type: SelectComponent


Inputs

Name Type Default Description Example
options Array<IOption> - Pass here an array of items from which you want to select [options]="mySelectOptionsList"
customClass string ' ' Pass here a css class which you want to add on the internal element of mdb-select [customClass]=" 'blue' "
allowClear boolean false Whether button for removing selected options should be visible [allowClear]="true"
disabled boolean false Allow to disable select input [disabled]="true"
filterEnabled boolean false Whether select search box should be visible [filterEnabled]="true"
filterAutocomplete boolean false Used to determine, if filter input should use browser autocomplete or not [filterAutocomplete]="true"
highlightColor string - Changes options background color on hover [highlightColor]="'yellow'"
highlightTextColor string - Changes options text color on hover [highlightTextColor]="'yellow'"
highlightFirst boolean true Wheter first option should be highlighted [highlightFirst]="false"
label string - Adds select label [label]="'Example label'"
multiple boolean false Enables selecting multiple options [multiple]="true"
notFoundMsg string 'No results found' Defines custom not found message for select search box [notFoundMsg]="'Country not found'"
placeholder string ' ' Defines placeholder for mdb-select element placeholder="Text placeholder"
filterPlaceholder string ' ' Defines the placeholder for the filter input element filterPlaceholder="Filter placeholder"
tabindex number 0 Changes tabindex of the component [tabindex]="-1"
visibleOptions number 4 Changes number of visible options in options list [visibleOptions]="2"
optionHeight number 37 Changes the single option height vavlue optionHeight="50"
enableSelectAll boolean true Determine if 'Select all' button should be visible or not. [multiple]="true" is necessary to use this input enableSelectAll="false"
selectAllLabel string 'Select all' Set the 'Select all' button text. [enableSelectAll] and [multiple] are necessary. selectAllLabel="Select all elements"
appendToBody boolean false Determine if select dropdown should be appended to body or not. Use this input when mdb-select parent has overflow: hidden [outline]="true"
outline boolean false Changes the appearance of the mdb-select to the outline. [outline]="true"

Outputs

Name Type Description Example
closed EventEmitter<any> Event fired when the select is closed (closed)="selectClosed($event)"
deselected EventEmitter<IOption | IOption[]> Event fired when the item is deselected (works only if [multiple]="true") (deselected)="optionDeselected($event)"
noOptionsFound EventEmitter<string> Event fired when the select filter has no matching items (works only if [filterEnabled]="true" (noOptionsFound)="noOptionsFound($event)"
opened EventEmitter<any> Event fired when the select is opened (opened)="selectOpened($event)"
selected EventEmitter<IOption> Event fired when the options is selected (selected)="optionSelected($event)"
changed EventEmitter<any> Event fired when the options is changed (changed)="optionChanged($event)"
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Angular Multiselect - examples & customization


Colorful MultiselectMDB Pro component


        <div class="row">
          <div class="col-md-6 mx-auto my-5">
            <mdb-select [options]="optionsSelect" [multiple]="true" [highlightFirst]="false" class="colorful-select dropdown-primary"
              placeholder="Choose your option"></mdb-select>
            <label>Example label</label>
          </div>
        </div>
      

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

        @Component({
        selector: 'colorful-multiple-options-material-select-example',
        templateUrl: 'colorful-multiple-options-material-select.html',
        })

        export class ColorfulMultipleOptionsMaterialSelectComponent implements OnInit {
        optionsSelect: Array<any>;

          ngOnInit() {
          this.optionsSelect = [
          { value: '1', label: 'USA' },
          { value: '2', label: 'Germany' },
          { value: '3', label: 'France' },
          { value: '4', label: 'Poland' }
          ];
          }
          }
      

Multiselect with iconsMDB Pro component


        <div class="row">
          <div class="col-md-6">
            <mdb-select [options]="optionsSelect" [multiple]="true" placeholder="Choose your option"></mdb-select>
            <label>Example label</label>
          </div>
        </div>
      

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

        @Component({
        selector: 'multiple-icon-options-material-select-example',
        templateUrl: 'multiple-icon-options-material-select.html',
        })

        export class MultipleIconOptionsMaterialSelectComponent implements OnInit {
        optionsSelect: Array<any>;

          ngOnInit() {
          this.optionsSelect = [
          { value: '1', label: 'Option 1', icon: 'https://mdbootstrap.com/img/Photos/Avatars/avatar-1.jpg' },
          { value: '2', label: 'Option 2', icon: 'https://mdbootstrap.com/img/Photos/Avatars/avatar-2.jpg' },
          { value: '3', label: 'Option 3', icon: 'https://mdbootstrap.com/img/Photos/Avatars/avatar-3.jpg' },
          ];
          }
          }
      

Multiselect with filled-in checkboxMDB Pro component


        <div class="row">
          <div class="col-md-6 mx-auto my-5">
            <mdb-select [options]="optionsSelect" [multiple]="true" customClass="filled-in" placeholder="Choose your option"></mdb-select>
            <label>Example label</label>
          </div>
        </div>
      

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

        @Component({
        selector: 'filled-in-multiple-options-material-select-example',
        templateUrl: 'filled-in-multiple-options-material-select.html',
        })

        export class FilledInMultipleOptionsMaterialSelectComponent implements OnInit {
        optionsSelect: Array<any>;

          ngOnInit() {
          this.optionsSelect = [
          { value: '1', label: 'Option 1' },
          { value: '2', label: 'Option 2' },
          { value: '3', label: 'Option 3' },
          ];
          }
          }
      

Customize toggle icon MDB Pro component

Use different font awesome icon:


        <div class="row">
          <div class="col-md-6">
            <mdb-select [options]="optionsSelect" [multiple]="true" placeholder="Choose your option"></mdb-select>
          </div>
        </div>
      

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

@Component({
selector: 'customize-toggle-select-example',
templateUrl: 'customize-toggle-select.html',
})

export class CustomizeToggleSelectComponent implements OnInit {

optionsSelect: Array<any>;
  ngOnInit() {
    this.optionsSelect = [
      { value: '1', label: 'Option 1' },
      { value: '2', label: 'Option 2' },
      { value: '3', label: 'Option 3' },
      ];
    }
  }
      

        .mdb-select-toggle:before {
          content: "\f0dd";
          font-family: 'Font Awesome 5 Free';
          font-weight: 900;
          font-size: 1rem;
        }
      

Use custom icon created with css styles:


           <div class="row">
             <div class="col-md-6">
               <mdb-select [options]="optionsSelect" [multiple]="true" placeholder="Choose your option"></mdb-select>
             </div>
           </div>
         

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

   @Component({
   selector: 'customize-toggle-select-example',
   templateUrl: 'customize-toggle-select.html',
   })

   export class CustomizeToggleSelectComponent implements OnInit {

   optionsSelect: Array<any>;
     ngOnInit() {
       this.optionsSelect = [
         { value: '1', label: 'Option 1' },
         { value: '2', label: 'Option 2' },
         { value: '3', label: 'Option 3' },
         ];
       }
     }
         

          .mdb-select-toggle {
            border: solid black;
            border-width: 0 3px 3px 0;
            display: inline-block;
            padding: 3px;
            width: 0;
            height: 0;
            transform: rotate(45deg);
            margin-right: 10px;
            margin-top: -10px;
          }

          .mdb-select-toggle:before {
            content: '';
          }