Get Started with ActiveReportsJS Report Viewer Angular Component

Create Angular Application

The easiest and recommended way for creating a new Angular application is to use Angular CLI. Run the following command from the command prompt or terminal to create an Angular application with default options. For details, see options page of the Angular documentation.

ng new arjs-angular-viewer-app --defaults --no-standalone

Install ActiveReportsJS npm packages

The Angular Viewer Component is distributed via the @mescius/activereportsjs-angular npm package, which depends on the core @mescius/activereportsjs package. To install both, run:

npm install @mescius/activereportsjs-angular@latest

Or with Yarn:

yarn add @mescius/activereportsjs-angular@latest

Import ActiveReportsJS styles

Open the src/styles.css file and add the following code.

It imports the default Report Viewer Component Styles

@import "@mescius/activereportsjs/styles/ar-js-ui.css";
@import "@mescius/activereportsjs/styles/ar-js-viewer.css";

Register ActivereportsJS Angular module

type=warning
The following steps are applicable for Angular v20. If you are using an earlier version, the steps are similar, but the file names and structure may be slightly different.

Open the src/app/app-module.ts file and replace its content with the following code. It registers the ActiveReportsModule module in addition to the standard modules.

import { NgModule, provideBrowserGlobalErrorListeners } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { ActiveReportsModule } from '@mescius/activereportsjs-angular';
import { AppRoutingModule } from './app-routing-module';
import { App } from './app';

@NgModule({
  declarations: [
    App
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    ActiveReportsModule
  ],
  providers: [
    provideBrowserGlobalErrorListeners()
  ],
  bootstrap: [App]
})
export class AppModule { }

Add ActiveReportsJS report to the application

ActiveReportsJS uses JSON format and rdlx-json extension for report template files.

Create a new file called report.rdlx-json in the public folder and insert the following JSON content into that file.

{
  "Name": "Report",
  "Body": {
    "ReportItems": [
      {
        "Type": "textbox",
        "Name": "TextBox1",
        "Value": "Hello, ActiveReportsJS Viewer",
        "Style": {
          "FontSize": "18pt"
        },
        "Width": "8.5in",
        "Height": "0.5in"
      }
    ]
  }
}

Add ActivereportsJS Angular Report Viewer to the application

type=warning
The following steps are applicable for Angular v20. If you are using an earlier version, the steps are similar, but the file names and structure may be slightly different.

Open src/app/app.ts and replace its content with the following code. The template of the component uses the Angular Report Viewer Component. The handler of its init event opens the report.rdlx-json that you created on the previous step. The component also injects the ActiveReportsJS Angular Export Services enabling the export functionality.

import { Component, ViewChild  } from '@angular/core';
import {
  AR_EXPORTS,
  HtmlExportService,
  PdfExportService,
  ViewerComponent,
  TabularDataExportService,
} from '@mescius/activereportsjs-angular';

@Component({
  selector: 'app-root',
  template: '<div id="viewer-host"><gc-activereports-viewer (init)="onViewerInit()"> </gc-activereports-viewer></div> ',
  standalone: false,
  styleUrl: './app.css',
  providers: [
    {
      provide: AR_EXPORTS,
      useClass: PdfExportService,
      multi: true,
    },
    {
      provide: AR_EXPORTS,
      useClass: HtmlExportService,
      multi: true,
    },
    {
      provide: AR_EXPORTS,
      useClass: TabularDataExportService,
      multi: true,
    },
  ],  
})
export class App {
  @ViewChild(ViewerComponent, { static: false }) reportViewer!: ViewerComponent;
  onViewerInit() {
    this.reportViewer.open('report.rdlx-json');
  }  
}

Open src/app/app.css file and add style for the viewer-host element

#viewer-host {
  width: 100%;
  height: 100vh;
}

Run and test the application

Run the npm start or yarn start command to start the application and open the browser to the target URL.

When the application starts, the ActiveReportsJS Viewer component will appear on the page. The viewer will display a report with the text Hello, ActiveReportsJS Viewer. You can test the basic functionality by using the buttons on the toolbar or exporting the report to one of the available formats.