How to use *ngFor and Index in Angular 2?

In the below example, we are using user collection to display in table using Angular 2 *ngFor and Index for row click values like populate row data at the click of row add/edit/delete. All the detail as below examples,

Stayed Informed – Angular 2 documentations and examples

Syntax –

<tr *ngFor="let user of userlist; let i = index" </tr>

home.component.html :-

<div class="row">
<div class="col-lg-12">
<div class="ibox float-e-margins">
<div class="ibox-title">
    <h5>Angular 2 for loop typescript example - *ngFor</h5>
</div>
<div class="ibox-title">
    <input type="text" [(value)]="values" (keyup)="onKeyUp($event)" /> <strong>Resut- {{values}}</strong>
</div>
<div class="ibox-content">
    <div class="table-responsive">
        <table class="table table-striped">
            <thead>
                <tr>
                    <th>ID</th>
                    <th>Name </th>
                    <th>SiteUrl </th>
                    <th>Actions </th>
                </tr>
            </thead>
            <tbody>
                <tr *ngFor="let user of userlist; let i = index" class="tbl-row-border">
                    <td>{{user.Id}}</td>
                    <td>{{user.name}}</td>
                    <td><a href="{{user.site}}" target="_blank">{{user.site}}</a></td>
                    <td><a (click)="addUser(user)">A</a>|<a (click)="updateUser(user)">E</a>|<a (click)="deleteUser(user)">D</a></td>
                </tr>
            </tbody>
        </table>
    </div>
</div>
</div>
</div>
</div>

home.component.ts :-

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

@Component({
    selector: 'home',
    templateUrl: './home.component.html',
    //styleUrls: ['./home.component.css'],
    styles: ['.tbl-row-border { border: 1px solid red;}']
})

export class HomeComponent {
    userlist: Users[];

    constructor() {
        this.userlist = [{ Id: '1001', name: 'Anil SIngh', site: 'http://www.code-sample.com' },
        { Id: '1002', name: 'Alok', site: 'http://www.code-view.com' },
        { Id: '1003', name: 'Reena', site: 'http://www.code-sample.xyz' },
        { Id: '1004', name: 'Dilip', site: 'http://www.codefari.com' },
        ];
    }

    values = '';
    onKeyUp(event: any) {
        this.values = event.target.value;
    };

    addUser(user) {
        alert(JSON.stringify(user));
    };

    updateUser(user) {
        alert(JSON.stringify(user));
    };

    deleteUser(user) {
        alert(JSON.stringify(user));
    };
}

export class Users {
    Id: String;
    name: String;
    site: String;
}

app.module.ts :-

import { NgModule } from '@angular/core';
import { RouterModule } from '@angular/router';
import { UniversalModule } from 'angular2-universal';
import { AppComponent } from './components/app/app.component';
import { HomeComponent } from './components/home/home.component';
import { HeaderComponent } from './components/shared/header/header.component';
import { MenuComponent } from './components/menu/menu.component';

@NgModule({
    bootstrap: [ AppComponent ],
    declarations: [
        AppComponent,
        HomeComponent,
        HeaderComponent,
        MenuComponent        
    ],
    imports: [
        UniversalModule, // Must be first import. This automatically imports BrowserModule, HttpModule, and JsonpModule too.
        RouterModule.forRoot([
            { path: '', redirectTo: 'home', pathMatch: 'full' },
            { path: 'home', component: HomeComponent },
            { path: '**', redirectTo: 'home' }
        ])
    ]
})
export class AppModule {
}

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Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..

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