Add And Remove List Items From The ListView Component in Angular ListView component

20 Apr 2021 / 2 minutes to read

You can add or remove list items from the ListView component using the addItem and removeItem methods. Refer to the following steps to add or remove a list item.

Render the ListView with data source, and use the template property to append the delete icon for each list item. Also, bind the click event for the delete icon using the actionComplete handler.
Render the Add Item button, and bind the click event. On the click event handler, pass data with random id to the addItem method to add a new list item on clicking the Add Item button.
Bind the click handler to the delete icon created in step 1. Within the click event, remove the list item by passing the delete icon list item to removeItem method.

Source

Preview

app.component.ts

app.module.ts

main.ts

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

@Component({
selector: 'my-app',
template: `<ejs-listview #list id='sample-list' [dataSource]='data' [fields]='fields' (actionComplete)='onComplete()'>
<ng-template  #template let-data="">
<div class='text-content'> {{data.text}} <span class = 'delete-icon'></span> </div>
</ng-template>
</ejs-listview>
<button ejs-button id="btn" (click)="addItem()">Add Item</button>`,
})

export class AppComponent {
   @ViewChild('list')
   listviewInstance: ListViewComponent;
//define the array of string
public data: object[] =  [{ text: "Hennessey Venom", id: "1", icon: "delete-icon" },
  { text: "Bugatti Chiron", id: "2", icon: "delete-icon" },
  { text: "Bugatti Veyron Super Sport", id: "3", icon: "delete-icon" },
  { text: "Aston Martin One- 77", id: "4", icon: "delete-icon" },
  { text: "Jaguar XJ220", id: "list-5", icon: "delete-icon" },
  { text: "McLaren P1", id: "6", icon: "delete-icon" }];

public fields: Object = {text: "text", iconCss: "icon" };
deleteItem(args) {
  args.stopPropagation();
  let liItem = args.target.parentElement.parentElement;
  this.listviewInstance.removeItem(liItem);
  this.onComplete();
}
  onComplete() {
  let iconEle = document.getElementsByClassName("delete-icon");
  //Event handler to bind the click event for delete icon
  Array.from(iconEle).forEach((element) => {
element.addEventListener("click", this.deleteItem.bind(this));
  });
}

addItem(){
  let data = {
text: "Koenigsegg - " + (Math.random() * 1000).toFixed(0),
id: (Math.random() * 1000).toFixed(0).toString(),
icon: "delete-icon"
  };
  this.listviewInstance.addItem([data]);
}
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ListViewModule } from '@syncfusion/ej2-angular-lists';
import { ButtonModule } from '@syncfusion/ej2-angular-buttons';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        ListViewModule, ButtonModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

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

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