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Render a Dialog using utility functions

08 Apr 2021 / 4 minutes to read

The dialog component provides built-in utility functions to render the alert and confirm dialogs with the minimal code. The following options are used as an argument on calling the utility functions:

Options	Description
title	Specifies the title of dialog like the `header` property.
content	Specifies the value that can be displayed in dialog’s content area like the `content` property.
isModal	Specifies the Boolean value whether the dialog can be displayed as modal or non-modal. For more details, refer to the `isModal` property.
position	Specifies the value where the alert or confirm dialog is positioned within the document. For more details, refer to the `position` property { X: ‘center’, Y: ‘center’}
okButton	Configures the `OK button` that contains button properties with the click events. `okButton:{ icon:'prefix icon to the button', cssClass:'custom class to the button', click: 'action for OK button click', text: 'Yes' // <-- Default value is 'OK' }`
cancelButton	Configures the `Cancel button` that contains button properties with the click events. `cancelButton:{ icon:'prefix icon to the button', cssClass:'custom class to the button', click: 'action for ‘Cancel’ button click', text: 'No' // <-- Default value is 'Cancel'}`
isDraggable	Specifies the value whether the alert or confirm dialog can be dragged by the user.
showCloseIcon	When set to true, the close icon is shown in the dialog component.
closeOnEscape	When set to true, you can close the dialog by pressing ESC key.
animationSettings	Specifies the animation settings of the dialog component.
cssClass	Specifies the CSS class name that can be appended to the dialog.
zIndex	Specifies the order of the dialog, that is displayed in front or behind of another component.
open	Event which is triggered after the dialog is opened.
Close	Event which is triggered after the dialog is closed.

Alert Dialog

An alert dialog box is used to display warning like messages to the users. Use the following code to render a simple alert dialog in an application.

Source

Preview

app.component.ts

app.module.ts

main.ts

index.html

index.css

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

@Component({
    selector: 'app-root',
    template: `<button class="e-control e-btn" id="targetButton" (click)="onOpenDialog($event)">Open Alert Dialog</button>`,
    encapsulation: ViewEncapsulation.None
})

export class AppComponent implements OnInit {
    public onOpenDialog = function(event: any): void {
        DialogUtility.alert('This is an Alert Dialog!');
    }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
    ],
    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);

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Utility Dialog</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Toolbar Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.9.0/zone.min.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <app-root id="dialog-container">
        <div id='loader'>LOADING....</div>
    </app-root>
</body>

</html>

html,
body,
#dialog-container {
    display: block;
    height: 100%;
    overflow: hidden;
    width: 100%;
}

#dialog-container {
    height: 365px;
}

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

Render an alert Dialog with options

Source

Preview

app.component.ts

app.module.ts

main.ts

index.html

index.css

import { Component, ViewChild, OnInit } from '@angular/core';
import { DialogUtility } from '@syncfusion/ej2-popups';

@Component({
    selector: 'app-root',
    template: `<button class="e-control e-btn" id="targetButton" (click)="onOpenDialog($event)">Open Alert Dialog</button>`
})

export class AppComponent implements OnInit {

    public onOpenDialog = function(event: any): void {
       DialogUtility.alert({
        title: 'Alert Dialog',
        content: "This is an Alert Dialog!",
        okButton: {  text: 'OK', click: this.okClick.bind(this) },
        showCloseIcon: true,
        closeOnEscape: true,
        animationSettings: { effect: 'Zoom' }
    });
 }
 private okClick(): void {
    alert('you clicked OK button');
 }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
    ],
    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);

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Utility Dialog</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Toolbar Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.9.0/zone.min.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <app-root id="dialog-container">
        <div id='loader'>LOADING....</div>
    </app-root>
</body>

</html>

html,
body,
#dialog-container {
    display: block;
    height: 100%;
    overflow: hidden;
    width: 100%;
}

#dialog-container {
    height: 365px;
}

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

Confirm Dialog

A confirm dialog displays a specified message along with ‘OK’ and ‘Cancel’ button.

Source

Preview

app.component.ts

app.module.ts

main.ts

index.html

index.css

import { Component, ViewChild, OnInit } from '@angular/core';
import { DialogUtility } from '@syncfusion/ej2-popups';

@Component({
    selector: 'app-root',
    template: `<button class="e-control e-btn" id="targetButton" (click)="onOpenDialog($event)">Open Confirm Dialog</button>`
})

export class AppComponent implements OnInit {
    public onOpenDialog = function(event: any): void {
        DialogUtility.confirm('This is a Confirmation Dialog!');
    }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
    ],
    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);

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Utility Dialog</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Toolbar Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.9.0/zone.min.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <app-root id="dialog-container">
        <div id='loader'>LOADING....</div>
    </app-root>
</body>

</html>

html,
body,
#dialog-container {
    display: block;
    height: 100%;
    overflow: hidden;
    width: 100%;
}

#dialog-container {
    height: 365px;
}

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

Render a confirmation Dialog with options

Source

Preview

app.component.ts

app.module.ts

main.ts

index.html

index.css

import { Component, ViewChild, OnInit } from '@angular/core';
import { DialogUtility } from '@syncfusion/ej2-popups';

@Component({
    selector: 'app-root',
    template: `<button class="e-control e-btn" id="targetButton" (click)="onOpenDialog($event)">Open Confirm Dialog</button>`
})

export class AppComponent implements OnInit {
    public onOpenDialog = function(event: any): void {
        DialogUtility.confirm({
        title: ' Confirmation Dialog',
        content: "This is a Confirmation Dialog!",
        okButton: {  text: 'OK', click: this.okClick.bind(this) },
        cancelButton: {  text: 'Cancel', click: this.cancelClick.bind(this) },
        showCloseIcon: true,
        closeOnEscape: true,
        animationSettings: { effect: 'Zoom' }
    });
    }
    private okClick(): void {
        alert('you clicked OK button');
    }

    private cancelClick(): void {
        alert('you clicked Cancel button');
    }
}

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
    ],
    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);

<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Utility Dialog</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Toolbar Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/zone.js/0.9.0/zone.min.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <app-root id="dialog-container">
        <div id='loader'>LOADING....</div>
    </app-root>
</body>

</html>

html,
body,
#dialog-container {
    display: block;
    height: 100%;
    overflow: hidden;
    width: 100%;
}

#dialog-container {
    height: 365px;
}

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

Contents

Alert Dialog
Render an alert Dialog with options
Confirm Dialog
Render a confirmation Dialog with options

Contents

Alert Dialog
Render an alert Dialog with options
Confirm Dialog
Render a confirmation Dialog with options