angular2 template - Autofocus not working in angular 4 -


i need autofocus element inside ngfor loop.

here chat.component.html

<div *ngfor="let chat of chats; let last = last">   {{ chat.chat }} <span *ngif="last;" autofocus></span> </div>

actualy, using button click i'm showing chat popup, need autofocus last chat.

my chat.ts file

import {  component, oninit } '@angular/core'; import { authservice } '../../services/auth.service'; import * io "socket.io-client";  @component({   selector: 'app-lsidebar',   templateurl: './lsidebar.component.html',   styleurls: ['./lsidebar.component.css'] })  export class lsidebarcomponent implements oninit {   chat:string;   showchat:boolean;   chats:any[];   fanmateid:string;   socket = io('http://localhost:3000');    constructor(private authservice:authservice) { }    ngoninit() {      this.showfans = false;     this.showchat = false;     this.getfanmates();     this.chatss();   }     getchat(fanmateid,name){     this.showchat = !this.showchat;     this.chatname = name;     this.fanmateid = fanmateid;     const temp = {         fanmate_id: fanmateid     }     this.getchats(temp);    }   getchats(temp){     this.chats = [];     this.authservice.getchat(temp);    }   chatss(){     this.socket.on('chatres',function(chats){        this.chats = chats.chats[0].messages;      }.bind(this));      this.socket.on('addchat',function(chats){        this.chat = '';       // console.log(chats);     }.bind(this));   } }

is there suggestions end search on autofocus on google angular 4.

autofocus attribute works on <button>, <input>, <keygen>, <select> , <textarea>. read documentation.

you need set tabindex attribute on span , focus manually in ngafterviewinit(). 

<div *ngfor="let chat of chats; let last = last">   {{ chat.chat }}    <span *ngif="last;" #lastchat tabindex="9999"></span> </div>

in ts code: 

@viewchild('lastchat') lastchat:htmlelement; ngafterviewinit(){     this.lastchat.nativeelement.focus();   }

link working demo.


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