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Getting started with the Angular Tooltip component

10 Feb 202613 minutes to read

This section explains how to create a simple Tooltip and configure its functionality in Angular.

Note: This guide supports Angular 21 and other recent Angular versions. For detailed compatibility with other Angular versions, please refer to the Angular version support matrix. Starting from Angular 19, standalone components are the default, and this guide reflects that architecture.

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Prerequisites

Ensure your development environment meets the System Requirements for Syncfusion Angular UI Components.

Dependencies

The following dependencies are required to use the Tooltip component in an application.

|-- @syncfusion/ej2-angular-popups
    |-- @syncfusion/ej2-angular-base
    |-- @syncfusion/ej2-popups
      |-- @syncfusion/ej2-base
      |-- @syncfusion/ej2-buttons

SetUp the Angular application

A straightforward approach to beginning with Angular is to create a new application using the Angular CLI. Install Angular CLI globally with the following command:

npm install -g @angular/cli

Angular 21 Standalone Architecture: Standalone components are the default in Angular 21. This guide uses the modern standalone architecture. If you need more information about the standalone architecture, refer to the Standalone Guide.

Installing a specific version

To install a particular version of Angular CLI, use:

npm install -g @angular/[email protected]

Create a new application

With Angular CLI installed, execute this command to generate a new application:

ng new syncfusion-angular-app
  • This command will prompt you to configure settings like enabling Angular routing and choosing a stylesheet format.
? Which stylesheet format would you like to use? (Use arrow keys)
> CSS             [ https://developer.mozilla.org/docs/Web/CSS                     ]
  Sass (SCSS)     [ https://sass-lang.com/documentation/syntax#scss                ]
  Sass (Indented) [ https://sass-lang.com/documentation/syntax#the-indented-syntax ]
  Less            [ http://lesscss.org                                             ]
  • By default, a CSS-based application is created. Use SCSS if required:
ng new syncfusion-angular-app --style=scss
  • During project setup, when prompted for the Server-side rendering (SSR) option, choose the appropriate configuration.

Initial_setup

  • Select the required AI tool or ‘none’ if you do not need any AI tool.

Initial_setup

  • Navigate to your newly created application directory:
cd syncfusion-angular-app

Note: In Angular 19 and below, it uses app.component.ts, app.component.html, app.component.css etc. In Angular 20+, the CLI generates a simpler structure with src/app/app.ts, app.html, and app.css (no .component. suffixes).

Installing Syncfusion® Tooltip package

Syncfusion®’s Angular component packages are available on npmjs.com. To use Syncfusion® Angular components, install the necessary package.

This guide uses the Angular Tooltip component for demonstration. Add the Angular Tooltip component component with:

ng add @syncfusion/ej2-angular-popups

This command will perform the following configurations:

  • Add the @syncfusion/ej2-angular-popups package and peer dependencies to your package.json.
  • Import the Tooltip component component in your application.
  • Register the default Syncfusion® material theme in angular.json.

For more details on version compatibility, refer to the Version Compatibility section.

Syncfusion® offers two package structures for Angular components:

  1. Ivy library distribution package format
  2. Angular compatibility compiler (ngcc), which is Angular’s legacy compilation pipeline.
    Syncfusion®’s latest Angular packages are provided as Ivy-compatible and suited for Angular 12 and above. To install the package, execute: 
    ng add @syncfusion/ej2-angular-popups

    For applications not compiled with Ivy, use the ngcc tagged packages:

    The ngcc packages are still compatible with Angular CLI versions 15 and below. However, they may generate warnings suggesting the use of IVY compiled packages. Starting from Angular 16, support for the ngcc package has been completely removed. If you have further questions regarding ngcc compatibility, please refer to the following FAQ.

    npm add @syncfusion/[email protected]

Adding CSS Reference

Syncfusion® Angular component themes can be added in various ways: via CSS or SCSS styles from npm packages, CDN, CRG, or Theme Studio.

The Material theme is added to your styles.css when you run ng add (this happens automatically by default).

To stylize only specific Syncfusion® components, import the necessary styles. For example, to style only the Tooltip component:

[style.css]

@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-angular-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-angular-popups/styles/material.css";

Alternatively, based on the location of your CSS file, you can import the styles as shown below:

@import "node_modules/@syncfusion/ej2-base/styles/material.css";
@import "node_modules/@syncfusion/ej2-angular-buttons/styles/material.css";
@import "node_modules/@syncfusion/ej2-angular-popups/styles/material.css";

Ensure that the import order aligns with the component’s dependency sequence.

For using SCSS styles, refer to this guide.

Add Tooltip component

Use the following snippet in the src/app/app.ts file to import the Tooltip component.

import { Component, ViewEncapsulation } from '@angular/core';
import { TooltipModule } from '@syncfusion/ej2-angular-popups'

@Component({
  imports: [TooltipModule],
  standalone: true,
  selector: 'app-root',
  template: `
    <ejs-tooltip id='tooltip' content='Tooltip content'>
        Hover Me
    </ejs-tooltip>`,
  encapsulation: ViewEncapsulation.None
})
export class App { }

Run the application

  • Run the application in the browser using the following command:
ng serve --open

The following example shows how to initialize a Tooltip on a single element.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component, ViewEncapsulation } from '@angular/core';

@Component({
  imports: [
    TooltipModule,
    ButtonModule
  ],
  standalone: true,
  selector: 'app-root',
  template: `
    <div id='container' style="display: inline-block; position: relative; left: 50%;top: 100px;transform: translateX(-50%);">
        <ejs-tooltip id='tooltip' content='Tooltip content' target="#target">
            <button ejs-button id="target">Show Tooltip</button>
        </ejs-tooltip>
    </div>`,
  encapsulation: ViewEncapsulation.None
})
export class AppComponent { }
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Initialize Tooltip within a container

Create a Tooltip on multiple targets within a container by defining the selector property with specific target elements, so the Tooltip initializes only on those matches. In this case, the Tooltip content is taken from the target element’s title attribute.

Use the following example to create a Tooltip on multiple targets within a container.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component } from '@angular/core';
@Component({
    imports: [

        TooltipModule,
        ButtonModule
    ],
    standalone: true,
    selector: 'app-root',
    template: `
        <div id="tool">
          <ejs-tooltip target='.e-info' position='RightCenter'>
            <form id="details" role="form">
              <table>
                <tr>
                    <td class="info">User Name</td>
                    <td>
                        <input type="text" class="e-info" name="firstname" title="Please enter your name"> </td>
                </tr>
                <tr>
                    <td class="info">Email Address</td>
                    <td>
                        <input type="text" class="e-info" name="email" title="Enter a valid email address">
                    </td>
                </tr>
                <tr>
                    <td class="info">Password</td>
                    <td>
                        <input type="password" class="e-info" name="password" title="Be at least 8 characters length">
                    </td>
                </tr>
                <tr>
                    <td class="info">Confirm Password</td>
                    <td>
                        <input type="password" class="e-info" name="Cpwd" title="Re-enter your password">
                    </td>
                </tr>
                <tr>
                    <td><input ejs-button id="sample" class="center" type="submit" value="Submit"></td>
                    <td><input ejs-button id="clear" class="center" type="reset" value="Reset"></td>
                </tr>
              </table>
            </form>
          </ejs-tooltip>
        </div>
        `,
})

export class AppComponent { }
@import 'node_modules/@syncfusion/ej2-base/styles/material.css';
@import 'node_modules/@syncfusion/ej2-angular-popups/styles/material.css';
@import 'node_modules/@syncfusion/ej2-angular-buttons/styles/material.css';
@import 'node_modules/@syncfusion/ej2-angular-base/styles/material.css';

#loader {
    color: #008cff;
    font-family: 'Helvetica Neue', 'calibiri';
    font-size: 16px;
    height: 40px;
    left: 45%;
    position: absolute;
    top: 45%;
    width: 30%;
}

#tool {
    width: 500px;
    margin: auto;
    transform: translateX(10%);
}

#details table th,
#details table td {
    padding: 20px 10px;
    text-align: left;
}

#details .info {
    font-size: 14px;
    text-align: left;
    font-weight: 500;
}

.center {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

In the above sample, details refers to the container’s ID, and the target .e-info refers to the target elements available within that container.

See Also

Positioning Tooltip

Tooltip Open Mode

Customize the Tooltip