Events in Angular Chat UI component

17 Dec 20246 minutes to read

This section describes the Chat UI events that will be triggered when appropriate actions are performed. The following events are available in the Chat UI component.

Created

The Chat UI component triggers the created event when the component rendering is completed.

app.component.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { ChatUIModule } from '@syncfusion/ej2-angular-interactive-chat';
import { UserModel } from '@syncfusion/ej2-interactive-chat';

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


@Component({
    imports: [ FormsModule, ReactiveFormsModule, ChatUIModule ],
    standalone: true,
    selector: 'app-root',
    // specifies the template string for the Chat UI component
    template: `<div id="chatui" ejs-chatui [user]="currentUserModel" (created)="onCreated()">
        <e-messages>
            <e-message text="Hi Michale, are we on track for the deadline?" [author]="currentUserModel" ></e-message>
            <e-message text="Yes, the design phase is complete." [author]="michaleUserModel"></e-message>
            <e-message text="I’ll review it and send feedback by today." [author]="currentUserModel"></e-message>
        </e-messages>
    </div>`
})

export class AppComponent {
    public currentUserModel: UserModel = { user: 'Albert', id: 'user1' };
    public michaleUserModel: UserModel = { user: 'Michale Suyama', id: 'user2' };

    public onCreated = () => {
        // Your required action here
    };
}

main.ts

import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Sending message

The messageSend event is triggered before sending a message in the Chat UI component.

app.component.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { ChatUIModule } from '@syncfusion/ej2-angular-interactive-chat';
import { UserModel, MessageSendEventArgs } from '@syncfusion/ej2-interactive-chat';

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


@Component({
    imports: [ FormsModule, ReactiveFormsModule, ChatUIModule ],
    standalone: true,
    selector: 'app-root',
    // specifies the template string for the Chat UI component
    template: `<div id="chatui" ejs-chatui [user]="currentUserModel" (messageSend)="onMessageSend($event)">
        <e-messages>
            <e-message text="Hi Michale, are we on track for the deadline?" [author]="currentUserModel"></e-message>
            <e-message text="Yes, the design phase is complete." [author]="michaleUserModel"></e-message>
            <e-message text="I’ll review it and send feedback by today." [author]="currentUserModel"></e-message>
        </e-messages>
    </div>`
})

export class AppComponent {
    public currentUserModel: UserModel = { user: 'Albert', id: 'user1' };
    public michaleUserModel: UserModel = { user: 'Michale Suyama', id: 'user2' };

    public onMessageSend = (args: MessageSendEventArgs) => {
        // Your required action here
    };
}

main.ts

import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

User typing

The userTyping event is triggered when the user is typing a message in the Chat UI component.

app.component.ts

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { ChatUIModule } from '@syncfusion/ej2-angular-interactive-chat';
import { UserModel, TypingEventArgs } from '@syncfusion/ej2-interactive-chat';

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


@Component({
    imports: [ FormsModule, ReactiveFormsModule, ChatUIModule ],
    standalone: true,
    selector: 'app-root',
    // specifies the template string for the Chat UI component
    template: `<div id="chatui" ejs-chatui [user]="currentUserModel" (userTyping)="onTyping($event)">
        <e-messages>
            <e-message text="Hi Michale, are we on track for the deadline?" [author]="currentUserModel"></e-message>
            <e-message text="Yes, the design phase is complete." [author]="michaleUserModel"></e-message>
            <e-message text="I’ll review it and send feedback by today." [author]="currentUserModel"></e-message>
        </e-messages>
    </div>`
})

export class AppComponent {
    public currentUserModel: UserModel = { user: 'Albert', id: 'user1' };
    public michaleUserModel: UserModel = { user: 'Michale Suyama', id: 'user2' };

    public onTyping = (args: TypingEventArgs) => {
        // Your required action here
    };
}

main.ts

import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));