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Getting Started

15 Oct 2021 / 4 minutes to read

This section briefly explains how to create a simple Tooltip component and configure its available functionalities in angular.

Dependencies

The following list of dependencies are required to use Tooltip component in your application.

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

Setup Angular Environment

You can use Angular CLI to setup your Angular applications. To install Angular CLI use the following command.

npm install -g @angular/cli

Create an Angular Application

Start a new Angular application using below Angular CLI command.

ng new my-app
cd my-app

All the available Essential JS 2 packages are published in npmjs.com registry.

To install Tooltip component, use the following command.

npm install @syncfusion/ej2-angular-popups --save

The —save will instruct NPM to include the tooltip package inside of the dependencies section of the package.json.

Import Tooltip module into Angular application(app.module.ts) from the package @syncfusion/ej2-angular-popups.

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

//Syncfusion ej2-angular-popups module
import { TooltipModule } from '@syncfusion/ej2-angular-popups';

import { AppComponent }  from './app.component';

@NgModule({
  imports:      [ BrowserModule, TooltipModule ], //declaration of TooltipModule module into NgModule
  declarations: [ AppComponent ],
  bootstrap:    [ AppComponent ]
})
export class AppModule { }

Adding CSS Reference

Add Tooltip component’s styles as given below in styles.css.

[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";

We can also use CRG to generate combined component styles.

Modify the template in app.component.ts file to render the Tooltip component. Add the Angular Tooltip by using <ejs-tooltip> selector in template section of the app.component.ts file.

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

@Component({
  selector: 'my-app',
  template: `
    <ejs-tooltip id='tooltip' content='Tooltip content'>
        Hover Me
    </ejs-tooltip>`,
  encapsulation: ViewEncapsulation.None
})
export class AppComponent  { }

Run the application

Now, run the application in the browser using the following command.

ng serve --open

The following code example depicts the way to initialize Tooltip on a single element.

Source

Preview

app.component.ts

app.module.ts

main.ts

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

@Component({
  selector: 'my-app',
  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 { 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 { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        TooltipModule,
        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);

It is possible to create Tooltip on multiple targets within a container. To do so, define the selector property with specific target elements - so that the tooltip will be initialized only on those matched targets within a container. In this case, the Tooltip content gets assigned from the title attribute of the target element.

Refer the following code example, to create a Tooltip on multiple targets within a container.

Source

Preview

app.component.ts

app.module.ts

main.ts

index.css

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

@Component({
selector: 'my-app',
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 { 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 { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        TooltipModule,
        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);

#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%);
}

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.

Getting Started

Dependencies

Setup Angular Environment

Create an Angular Application

Adding Syncfusion Tooltip package

Registering Tooltip Module

Adding CSS Reference

Add Tooltip component

Run the application

Initialize Tooltip within a container

See Also