Load accordion with data source in Angular Accordion component

28 Sep 20233 minutes to read

You can bind any data object to Accordion items, by mapping it to header and content  property.

In the below demo, Data is fetched from an OData service using DataManager. The result data is formatted as a JSON object with header and content fields, which is set to items property of Accordion.

app.component.ts

import { Component, OnInit, ViewChild } from '@angular/core';
import { AccordionComponent } from '@syncfusion/ej2-angular-navigations';
import { DataManager, Query, ODataV4Adaptor, ReturnOption } from '@syncfusion/ej2-data';

const SERVICE_URI: string = 'https://services.odata.org/V4/Northwind/Northwind.svc/Employees';

@Component({
    selector: 'app-container',
    template: `<ejs-accordion #element></ejs-accordion>`
})

export class AppComponent implements OnInit {
  @ViewChild('element') accordionObj?: AccordionComponent;
  public itemsData: any = [];
  public mapping =  { header: 'FirstName', content: 'Notes' };

  public ngOnInit(): void {
    new DataManager({ url: SERVICE_URI, adaptor: new ODataV4Adaptor})
    .executeQuery(new Query().range(1, 4)).then((e: ReturnOption) => {
      let result: any = e.result;

      for(let i: number = 0; i < result.length; i++) {
        this.itemsData.push({ header: result[i][this.mapping.header], content: result[i][this.mapping.content] });
      }
      (this.accordionObj as AccordionComponent).items = this.itemsData;
      (this.accordionObj as AccordionComponent).refresh();
    });
  }
}

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AccordionModule } from '@syncfusion/ej2-angular-navigations';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, AccordionModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

main.ts

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);