Grouping in Angular Listview component

20 Sep 20222 minutes to read

ListView supports to wrap the nested element into a group based on category.

The category of each list item can be mapped with groupBy field in the data table, which also supports single-level navigation.

In below sample, Cars are grouped based on its category using groupBy field.

app.component.ts

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

@Component({
    selector: 'my-app',
    template: `<ejs-listview id='sample-list' [dataSource]='data' [fields]='fields' ></ejs-listview>`
})

export class AppComponent {
    public data: Object = [
    {
        'text': 'Audi A4',
        'id': '9bdb',
        'category': 'Audi'
    },
    {
        'text': 'Audi A5',
        'id': '4589',
        'category': 'Audi'
    },
    {
        'text': 'BMW 501',
        'id': 'f849',
        'category': 'BMW'
    },
    {
        'text': 'BMW 502',
        'id': '7aff',
        'category': 'BMW'
    }
    ];

    public fields: Object = { groupBy: 'category', tooltip: 'text' };

}

app.module.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ListViewModule } from '@syncfusion/ej2-angular-lists';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        ListViewModule
    ],
    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';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Customization

The grouping header can be customized by using groupTemplate property for both inline and fixed group header.