angular2-multiselect:display selected values in list while editing module

Angular2-multiselect:display selected values in list while editing module

To display selected values in a list while editing a module using angular2-multiselect, you'll need to manage the state of the selected values and bind them to your template for display. Here's a step-by-step approach to achieve this:

1. Install angular2-multiselect

First, ensure you have angular2-multiselect installed in your Angular project. If not, you can install it using npm:

npm install angular2-multiselect --save

2. Import angular2-multiselect Module

Import the angular2-multiselect module in your Angular module (app.module.ts or relevant module where you want to use it):

import { AngularMultiSelectModule } from 'angular2-multiselect-dropdown'; @NgModule({ imports: [ AngularMultiSelectModule, // other imports ], // declarations, providers, etc. }) export class AppModule { }

3. Use angular2-multiselect Component in Your Component

In your component where you want to use angular2-multiselect, define the options and manage the selected values.

component.ts:

import { Component } from '@angular/core'; @Component({ selector: 'app-my-component', templateUrl: './my-component.component.html', styleUrls: ['./my-component.component.css'] }) export class MyComponent { dropdownList = []; selectedItems = []; dropdownSettings = {}; constructor() { // Example data for dropdownList this.dropdownList = [ { id: 1, itemName: 'Option 1' }, { id: 2, itemName: 'Option 2' }, { id: 3, itemName: 'Option 3' }, { id: 4, itemName: 'Option 4' }, { id: 5, itemName: 'Option 5' } ]; // Example selected items (to be fetched from your data) this.selectedItems = [ { id: 2, itemName: 'Option 2' }, { id: 4, itemName: 'Option 4' } ]; // Dropdown settings (customize as needed) this.dropdownSettings = { singleSelection: false, idField: 'id', textField: 'itemName', selectAllText: 'Select All', unSelectAllText: 'Unselect All', itemsShowLimit: 3, allowSearchFilter: true }; } }

4. Bind Selected Items to Display in Your Template

component.html:

<div> <angular2-multiselect [data]="dropdownList" [(ngModel)]="selectedItems" [settings]="dropdownSettings"> </angular2-multiselect> </div> <div *ngIf="selectedItems.length > 0"> <h4>Selected Items:</h4> <ul> <li *ngFor="let item of selectedItems">{{ item.itemName }}</li> </ul> </div>

Explanation:

  • Data and Settings: dropdownList contains the list of options for the dropdown, selectedItems holds the currently selected items, and dropdownSettings configures the behavior of the multiselect dropdown.

  • Template Binding: Use [(ngModel)]="selectedItems" to bind the selected items two-way between the component and the template. This ensures that changes in the dropdown selection reflect in selectedItems.

  • Display Selected Items: Use *ngFor to iterate over selectedItems and display each selected item in a list (<ul> and <li>).

Additional Notes:

  • Customize dropdownSettings as per your requirements. Options like singleSelection, idField, textField, etc., can be adjusted based on your data structure and UI needs.

  • Ensure you handle data binding and initialization appropriately based on your application's data flow and requirements.

By following these steps, you can effectively display selected values in a list while using angular2-multiselect in your Angular component. Adjust the code according to your specific use case and styling preferences.

More Tags

language-agnostic meta-tags spring-boot mosquitto aws-glue arrows angular2-http viewport-units mockmvc formsy-material-ui

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