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Load content through Ajax in Angular Tabs component

27 Jul 2021 / 2 minutes to read

The Tab supports to load external contents through AJAX library. Refer to the following steps.

  • Import the Ajax module from ej2-base and initialize with URL path.
  • Get the data from Ajax Success event, then initialize the Tab with retrieved external path data.
Source
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app.component.ts
app.module.ts
main.ts
ajax.html
index.css
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import { Component, ViewChild,OnInit } from '@angular/core';
import { TabComponent } from '@syncfusion/ej2-angular-navigations';
import { enableRipple } from '@syncfusion/ej2-base';
import { Ajax } from '@syncfusion/ej2-base';
/**
 * Load content through Ajax
 */

@Component({
selector: 'app-container',
template: `<ejs-tab id="tab_html_markup" #tab_html_markup>
       <e-tabitems>
                <e-tabitem [header]='headerText[0]'>
                    <ng-template #content>
                        Twitter is an online social networking service that enables users to send and read short 140-character messages called "tweets".
                        Registered users can read and post tweets, but those who are unregistered can only read them. Users access Twitter
                        through the website interface, SMS or mobile device app Twitter Inc. is based in San Francisco and has more than 25
                        offices around the world. Twitter was created in March 2006 by Jack Dorsey, Evan Williams, Biz Stone, and Noah Glass
                        and launched in July 2006. The service rapidly gained worldwide popularity, with more than 100 million users posting
                        340 million tweets a day in 2012.The service also handled 1.6 billion search queries per day.
                    </ng-template>
                </e-tabitem>
                <e-tabitem [header]='headerText[1]'>
                    <ng-template #content>
                        Facebook is an online social networking service headquartered in Menlo Park, California. Its website was launched on February
                        4, 2004, by Mark Zuckerberg with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum,
                        Dustin Moskovitz and Chris Hughes.The founders had initially limited the website\'\s membership to Harvard students,
                        but later expanded it to colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support
                        for students at various other universities and later to high-school students.
                    </ng-template>
                </e-tabitem>
                <e-tabitem [header]='headerText[2]' content="#content">
                </e-tabitem>
            </e-tabitems>
        </ejs-tab>`
})
export class AppComponent {
@ViewChild('tab_html_markup') tabObj: TabComponent;
public headerText: Object = [{ 'text': 'Twitter' }, { 'text': 'Facebook' },{ 'text': 'WhatsApp' }];

   ngOnInit() {
let ajax: Ajax = new Ajax('./ajax.html', 'GET', true);
ajax.send().then();
ajax.onSuccess = (data: string): void => {
   this.tabObj.items[2].content = data;
   this.tabObj.refresh();
};
}
}
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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { TabModule } from '@syncfusion/ej2-angular-navigations';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, FormsModule, TabModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
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import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
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<div>
    <div id="content">
         WhatsApp Messenger is a proprietary cross-platform instant messaging client for smartphones that operates
         under a subscription business model. It uses the Internet to send text messages, images, video, user location and
         audio media messages to other users using standard cellular mobile numbers. As of February 2016, WhatsApp had a user
         base of up to one billion,[10] making it the most globally popular messaging application. WhatsApp Inc., based in
         Mountain View, California, was acquired by Facebook Inc. on February 19, 2014, for approximately US$19.3 billion.
    </div>
</div>
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#container {
    visibility: hidden;
}

#loader {
    color: #008cff;
    height: 40px;
    left: 45%;
    position: absolute;
    top: 45%;
    width: 30%;
}

.e-content .e-item {
    font-size: 12px;
    margin: 10px;
    text-align: justify;
}